Statement of Financial Position [Abstract] Statement [Table] Statement [Table] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Building and Building Improvements [Member] Building and Building Improvements [Member] Statement [Line Items] Statement [Line Items] Assets: Assets [Abstract] Buildings and improvements, accumulated depreciation Real Estate Investment Property, Accumulated Depreciation Intangible lease assets, accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Tenant receivables, allowance for doubtful accounts Allowance for Doubtful Accounts Receivable Deferred financing costs, accumulated amortization Accumulated Amortization, Deferred Finance Costs Deferred lease costs, accumulated amortization Deferred Costs, Leasing, Accumulated Amortization Liabilities: Liabilities [Abstract] Unsecured debt- discount on debt Debt Instrument, Unamortized Discount Secured debt- premium on debt Estimated Fair Value Adjustment On Assumed Debt Estimated fair value adjustment on debt recorded at assumption of such debt instrument Intangible lease liabilities, accumulated amortization Intangible Lease Liabilities Accumulated Amortization Intangible Lease Liabilities Accumulated Amortization Stockholders’ Equity: Stockholders' Equity Attributable to Parent [Abstract] Shares-in-trust, shares authorized Shares In Trust Authorized Shares In Trust Authorized Shares-in-trust, shares outstanding Shares In Trust, Outstanding Shares In Trust, Outstanding Preferred stock, par value (in dollars per share) Preferred Stock, No Par Value Preferred stock, shares authorized Preferred Stock, Shares Authorized Preferred stock, shares outstanding Preferred Stock, Shares Outstanding Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, shares authorized Common Stock, Shares Authorized Common stock, shares issued Common Stock, Shares, Issued Common stock, shares outstanding Common Stock, Shares, Outstanding Fair Value Disclosures [Abstract] Fair Value Measurement of Financial Instruments Fair Value Disclosures [Text Block] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative [Table] Derivative [Table] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Unsecured Debt [Member] Senior Notes [Member] Senior Notes [Member] Debt Instrument [Axis] Debt Instrument, Name [Domain] $300 Million 2011 Unsecured Term Loan Maturing 2016 [Member] $300 Million 2011 Unsecured Term Loan Maturing 2016 [Member] $300 Million 2011 Unsecured Term Loan Maturing 2016 [Member] Unsecured 300 million 2013 Term Loan Maturing 2019 [Member] Unsecured 300 million 2013 Term Loan Maturing 2019 [Member] Unsecured 300 million 2013 Term Loan Maturing 2019 [Member] 2014 Senior Notes [Member] Senior 2014 Notes [Member] Senior 2014 Notes [Member] Derivative Instrument [Axis] Derivative Contract [Domain] Forward Starting Interest Rate Swap [Member] Forward Starting Interest Rate Swap [Member] Forward Starting Interest Rate Swap [Member] Interest Rate Swap [Member] Interest Rate Swap [Member] Interest Rate Swap 1 [Member] Interest Rate Swap 1 [Member] Interest Rate Swap 1 [Member] Interest Rate Swap 2 [Member] Interest Rate Swap 2 [Member] Interest Rate Swap 2 [Member] Interest Rate Swap 3 [Member] Interest Rate Swap 3 [Member] Interest Rate Swap 3 [Member] Interest Rate Swap 4 [Member] Interest Rate Swap 4 [Member] Interest Rate Swap 4 [Member] Interest Rate Swap 5 [Member] Interest Rate Swap 5 [Member] Interest Rate Swap 5 [Member] Interest Rate Swap 6 [Member] Interest Rate Swap 6 [Member] Interest Rate Swap 6 [Member] Interest Rate Swap 7 [Member] Interest Rate Swap 7 [Member] Interest Rate Swap 7 [Member] Interest Rate Swap 8 [Member] Interest Rate Swap 8 [Member] Interest Rate Swap 8 [Member] Credit Risk Contract [Member] Credit Risk Contract [Member] Income Statement Location [Axis] Income Statement and Other Comprehensive Income (Loss) Location [Domain] Income Statement Location [Domain] Interest Expense [Member] Derivative [Line Items] Derivative [Line Items] Number of forward starting swaps Number of Interest Rate Derivatives Held Total notional value Derivative, Notional Amount Face amount of debt instrument Debt Instrument, Face Amount Number of swaps settled Number of Interest Rate Derivatives Settled During the Period Number of Interest Rate Derivatives Settled During the Period Settlement of forward starting interest rate swaps Deferred Gain/(Loss) on Settlement of Interest Rate Derivative Gain/(Loss) on settlement of interest rate derivative which is recorded as component of accumulated other comprehensive income and recognized as offset/increase to interest expense over the life of the respective underlying debt facility. Term of notes Debt Instrument, Term of Debt Agreement Debt Instrument, Term of Debt Agreement Interest Rate Cash Flow Hedge Derivative at Fair Value, Net [Abstract] Interest Rate Cash Flow Hedge Derivative at Fair Value, Net [Abstract] Gross derivative assets Interest Rate Cash Flow Hedge Asset at Fair Value Gross derivative liabilities Interest Rate Cash Flow Hedge Liability at Fair Value Net derivative asset/(liability) Interest Rate Cash Flow Hedge Derivative at Fair Value, Net Amount of gain/(loss) recognized in OCI on derivative Unrealized Gain (Loss) on Interest Rate Cash Flow Hedges, Pretax, Accumulated Other Comprehensive Income (Loss) Amount of previously recorded loss reclassified from accumulated OCI into interest expense Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net Loss to be reclassified from accumulated other comprehensive loss to interest expense over next twelve months Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net Assets needed for immediate settlement, aggregate fair value Assets Needed for Immediate Settlement, Aggregate Fair Value Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type [Axis] Award Type [Axis] Award Type [Domain] Equity Award [Domain] Stock Awards [Member] Stock Awards [Member] Stock Awards [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Weighted-Average Grant Date Fair Value of Shares Granted During the Period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Total Grant Date Fair Value of Shares Vested During the Period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Share-based Liability Awards Paid During the Period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Share-based Liabilities Paid During Period The liabilities paid during the accounting period for equity-based compensation. Period of predetermined peer group's total stockholder return Stock Awards, Performance Period Used In Calculation Stock Awards, Performance Period Used In Calculation Compensation expense related to stock awards Allocated Share-based Compensation Expense Amortization of unvested shares Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Amortization Of Nonvested Shares Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Amortization Of Nonvested Shares Total shares issued to employees, directors, and officers Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period Unrecognized compensation cost related to nonvested Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Unrecognized compensation cost related to nonvested, weighted-average vesting period (in years) Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Derivative Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Guarantor and Non-Guarantor Financial Information [Abstract] Guarantor and Non-Guarantor Financial Information [Abstract] Condensed Consolidated Balance Sheets Condensed Balance Sheet [Table Text Block] Condensed Consolidated Statements of Income Condensed Income Statement [Table Text Block] Condensed Consolidated Statements of Cash Flows Condensed Cash Flow Statement [Table Text Block] Assets: Land Land Buildings and improvements, less accumulated depreciation of $1,030,098 and $979,934 as of June 30, 2014 and December 31, 2013, respectively Investment Building and Building Improvements, Net Investment Building and Building Improvements, Net Intangible lease assets, less accumulated amortization of $74,132 and $71,820 as of June 30, 2014 and December 31, 2013, respectively Finite-Lived Intangible Assets, Net Construction in progress Construction in Progress, Gross Total real estate assets Real Estate Investment Property, Net Investments in and amounts due from unconsolidated joint ventures Unconsolidated Equity Method Investments and Due from Joint Ventures Unconsolidated Equity Method Investments and Due from Joint Ventures Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Tenant receivables, net of allowance for doubtful accounts of $285 and $346 as of June 30, 2014 and December 31, 2013, respectively Accounts Receivable, Net Straight-line rent receivables Deferred Rent Receivables, Net Restricted cash and escrows Restricted Cash and Cash Equivalents Prepaid expenses and other assets Prepaid Expense and Other Assets Goodwill Goodwill Interest rate swaps Deferred financing costs, less accumulated amortization of $5,056 and $13,041 as of June 30, 2014 and December 31, 2013, respectively Deferred Finance Costs, Net Deferred lease costs, less accumulated amortization of $132,777 and $126,465 as of June 30, 2014 and December 31, 2013, respectively Deferred Costs, Leasing, Net Total assets Assets Unsecured debt, net of discount of $4,592 and $1,320 as of June 30, 2014 and December 31, 2013, respectively Unsecured Debt Secured debt, inclusive of premium of $3,499 and $0 as of June 30, 2014 and December 31, 2013, respectively Secured Debt Accounts payable, accrued expenses, and accrued capital expenditures Accounts Payable and Accrued Liabilities Deferred income Deferred Revenue Intangible lease liabilities, less accumulated amortization of $40,054 and $44,256 as of June 30, 2014 and December 31, 2013, respectively Off-market Lease, Unfavorable Interest rate swaps Total liabilities Liabilities Commitments and Contingencies Commitments and Contingencies Shares-in-trust, 150,000,000 shares authorized; none outstanding as of June 30, 2014 or December 31, 2013 Common Stock Held in Trust Preferred stock, no par value, 100,000,000 shares authorized; none outstanding as of June 30, 2014 or December 31, 2013 Preferred Stock, Value, Issued Common stock, $.01 par value, 750,000,000 shares authorized; 154,324,076 and 157,460,903 shares issued and outstanding as of June 30, 2014 and December 31, 2013, respectively Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital, Common Stock Cumulative distributions in excess of earnings Accumulated Distributions in Excess of Net Income Other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Piedmont stockholders’ equity Stockholders' Equity Attributable to Parent Noncontrolling interest Stockholders' Equity Attributable to Noncontrolling Interest Total stockholders’ equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Total liabilities and stockholders’ equity Liabilities and Equity Guarantor and Non-Guarantor Financial Information Condensed Financial Statements [Text Block] Business Combinations [Abstract] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] The 5 Wall Street Building [Member] The 5 Wall Street Building [Member] The 5 Wall Street Building [Member] Debt Instrument [Axis] Debt Instrument, Name [Domain] Mortgage Loan Maturing September 1, 2021 [Member] Mortgage Loan Maturing September 1, 2021 [Member] Mortgage Loan Maturing September 1, 2021 [Member] Secured Debt [Member] Secured Debt [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Number of stories of building acquired Number of Stories in Real Estate Property Number of Stories in Real Estate Property Square footage of real estate property Area of Real Estate Property Contractual purchase price of property acquired Business Combination, Consideration Transferred Mortgage loan assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt Income Statement [Abstract] Revenues: Revenues [Abstract] Rental income Operating Leases, Income Statement, Lease Revenue Tenant reimbursements Tenant Reimbursements Property management fee revenue Management Fees Revenue Total revenues Revenues Expenses: Operating Expenses [Abstract] Property operating costs Direct Costs of Leased and Rented Property or Equipment Depreciation Depreciation, Continuing Operations The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives, from continuing operations. Amortization Adjustment for Amortization, Continuing Operations The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives, from continuing operations. General and administrative General and Administrative Expense Operating Expenses Operating Expenses Real estate operating income Operating Income (Loss) Other income (expense): Nonoperating Income (Expense) [Abstract] Interest expense Interest Expense Other income/(expense) Other Nonoperating Income (Expense) Net recoveries from casualty events and litigation settlements Net Loss (Gain) from Casualty Event and Litigation Settlement Expense The net charge/(recovery) against earnings in the period related to a fire, explosion, or natural disaster (hurricane, earthquake) and amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees Equity in income/(loss) of unconsolidated joint ventures Income (Loss) from Equity Method Investments Nonoperating Income (Expense) Nonoperating Income (Expense) Income from continuing operations Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest Discontinued operations: Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent [Abstract] Operating income Disposal Group, Including Discontinued Operation, Operating Income (Loss) Impairment loss Disposal Group, Including Discontinued Operation, Loss on Write Down Disposal Group Including Discontinued Operation Loss on Write Down Gain on sale of real estate assets, net Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax Income from discontinued operations Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Gain on sale of real estate assets Gain (Loss) on Sale of Properties, Net of Applicable Income Taxes Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Less: Net income attributable to noncontrolling interest Income (Loss) from Continuing Operations Attributable to Noncontrolling Interest Net income attributable to Piedmont Net Income (Loss) Attributable to Parent Per share information – basic and diluted: Earnings Per Share, Basic and Diluted [Abstract] Income from continuing operations and gain on sale of real estate assets (in dollars per share) Income (Loss) from Continuing Operations, Per Basic and Diluted Share Income/(loss) from discontinued operations (in dollars per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic and Diluted Share Net income available to common stockholders (in dollars per share) Earnings Per Share, Basic and Diluted Weighted-average common shares outstanding – basic Weighted Average Number of Shares Outstanding, Basic Weighted-average common shares outstanding – diluted Weighted Average Number of Shares Outstanding, Diluted Accounting Policies [Abstract] Summary of Significant Accounting Policies Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Schedule of Condensed Financial Statements [Table] Condensed Financial Statements [Table] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Issuer [Member] Subsidiary Issuer [Member] Guarantor [Member] Guarantor [Member] The registrant that guarantees the debt issued by another entity it controls, either directly or indirectly. The usual condition for control is ownership of a majority (over 50%) of the outstanding voting stock. The power to control may also exist with a lesser percentage of ownership, for example, by contract, lease, agreement with other stockholders or by court decree. Non-Guarantor Subsidiaries [Member] Non-Guarantor Subsidiaries [Member] Eliminations [Member] Consolidation, Eliminations [Member] Condensed Financial Statements, Captions [Line Items] Condensed Financial Statements, Captions [Line Items] Net Cash Provided by Operating Activities Net Cash Provided by (Used in) Operating Activities Cash Flows from Investing Activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Investment in real estate assets and real estate related intangibles, net of accruals Payments to Acquire Productive Assets Intercompany note receivable Payments for (Proceeds from) Intercompany Notes Receivable, Investing Activities Payments for (Proceeds from) Intercompany Notes Receivable, Investing Activities Net sales proceeds from wholly-owned properties Proceeds from Divestiture of Businesses, Net of Cash Divested Net sales proceeds received from unconsolidated joint ventures Proceeds from Sale of Equity Method Investments Investments in unconsolidated joint ventures Payments to Acquire Equity Method Investments Deferred lease costs paid Increase (Decrease) in Lease Acquisition Costs Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Cash Flows from Financing Activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Deferred financing costs paid Payments of Financing Costs Proceeds from debt Proceeds from Notes Payable Repayments of debt Repayments of Notes Payable Intercompany note payable Payments for (Proceeds from) Intercompany Notes Payable Payments for (Proceeds from) Intercompany Notes Payable Net costs of issuance of common stock Payments of Stock Issuance Costs Repurchases of common stock as part of announced plan Payments for Repurchase of Common Stock (Distributions to)/repayments from affiliates Payments for (Proceeds from) Intercompany Distributions Payments for (Proceeds from) Intercompany Distributions Dividends paid and discount on dividend reinvestments Payments of Dividends Common Stock, Distributions To Noncontrolling Interest and Discount on Dividend Reinvestment Sum of a) The cash outflow from the distribution of an entity's earnings in the form of dividends to common stockholders, and b) Distributions to noncontrolling interest, and c)Discount on dividend reinvestments. Net cash (used in)/provided by financing activities Net Cash Provided by (Used in) Financing Activities Net increase/(decrease) in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Level 1 [Member] Fair Value, Inputs, Level 1 [Member] Level 2 [Member] Fair Value, Inputs, Level 2 [Member] Measurement Basis [Axis] Measurement Basis [Axis] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Portion at Fair Value Measurement [Member] Portion at Fair Value Measurement [Member] Carrying Value [Member] Reported Value Measurement [Member] Estimated Fair Value [Member] Estimate of Fair Value Measurement [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Cash and cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Tenant receivables, net Receivables, Fair Value Disclosure Restricted cash and escrows Restricted Cash and Escrows, Fair Value Disclosure This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount of restricted cash and escrows existing as of the balance sheet date. Accounts payable and accrued expenses Accounts Payable, Fair Value Disclosure Interest rate swap liability Debt Notes Payable, Fair Value Disclosure Debt Disclosure [Abstract] Schedule of Debt Schedule of Debt [Table Text Block] Schedule of Debt Instruments [Table] Schedule of Debt Instruments [Table] Schedule of Debt Instruments [Table] Mortgage Note $200 Million [Member] Aon Center Chicago 4.87 Mortgage Note [Member] Aon Center Chicago 4.87 Mortgage Note [Member] Mortgage Note $25 Million [Member] Aon Center Chicago 5.70 Mortgage Note [Member] Aon Center Chicago 5.70 Mortgage Note [Member] Secured Pooled Facility [Member] Secured Pooled Facility [Member] Fixed-Rate $105 Million Loan [Member] Fixed-Rate 105Million Loan [Member] Fixed-Rate 105Million Loan [Member] Fixed-Rate $125 Million Loan [Member] Fixed-Rate 125Million Loan [Member] Fixed-Rate 125Million Loan [Member] Fixed-Rate $42.5 Million Loan [Member] Fixed-Rate 42.5Million Loan [Member] Fixed-Rate 42.5Million Loan [Member] WDC Mortgage Notes $140 Million[Member] WDC Mortgage Notes [Member] WDC Mortgage Notes [Member] $500 Million Unsecured Line of Credit [Member] Unsecured 500 Million Line of Credit [Member] Unsecured 500 Million Line of Credit [Member] $350 Million Senior Notes [Member] Senior 350 Million Notes [Member] Senior 350 Million Notes [Member] Interest Rate by Type [Axis] Interest Rate by Type [Axis] Interest Rate by Type [Axis] Interest Rate, Type [Domain] Interest Rate, Type [Domain] Interest Rate, Type [Domain] LIBOR [Member] LIBOR [Member] LIBOR [Member] Derivative Instrument Risk [Axis] Derivative Contract Type [Domain] Debt Instrument [Line Items] Borrowing capacity of line of credit Line of Credit Facility, Current Borrowing Capacity Rate Debt Instrument, Interest Rate, Stated Percentage Weighted Average Rate Debt, Weighted Average Interest Rate Line of credit, effective interest rate Line of Credit Facility, Interest Rate at Period End Amount Outstanding Notes and Loans Payable Number of properties in collateralized pool Number Of Properties In Collateralized Pool Number Of Properties In Collateralized Pool Effective interest rate Debt Instrument, Interest Rate, Effective Percentage Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate LIBOR rate in effect LIBOR Interest Rate In Effect LIBOR Interest Rate In Effect Maximum extension period Line Of Credit Facility, Maximum Maturity Extension Period Line Of Credit Facility, Maximum Maturity Extension Period Number of extension periods Line Of Credit Facility, Number of Maturity Extension Periods Line Of Credit Facility, Number of Maturity Extension Periods Extension period Line Of Credit Facility, Maturity Extension Period Line Of Credit Facility, Maturity Extension Period Effective interest rate Debt Instrument, Interest Rate, Effective Percentage Including Swap Settlement Effective interest rate for the funds borrowed under the debt agreement considering original issue of discount or premium as well as the impact of settled interest rate swaps Acquisitions Business Combination Disclosure [Text Block] Earnings Per Share [Abstract] Schedule of Weighted Average Number of Shares Schedule of Weighted Average Number of Shares [Table Text Block] Earnings Per Share Earnings Per Share [Text Block] Statement of Stockholders' Equity [Abstract] Dividends to common stockholders (in dollars per share) Common Stock, Dividends, Per Share, Cash Paid Schedule of Notional Amounts of Outstanding Derivative Positions Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block] Schedule of Interest Rate Derivatives Schedule of Interest Rate Derivatives [Table Text Block] Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block] Statement of Cash Flows [Abstract] Cash Flows from Operating Activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Net income Operating distributions received from unconsolidated joint ventures Proceeds from Equity Method Investment, Dividends or Distributions Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation Depreciation Amortization of deferred financing costs Amortization of Financing Costs and Discounts Settlement of forward starting interest rate swaps Other amortization Amortization of Intangible Assets Impairment loss on real estate assets Stock compensation expense Share-based Compensation Equity in loss/(income) of unconsolidated joint ventures Income (Loss) from Equity Method Investments, Actual Cash Impact Income (Loss) from Equity Method Investments, Actual Cash Impact Gain on sale of real estate assets, net Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Non Cash Impact Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Non Cash Impact Retirement of shares returned from escrow Retirement of Shares Returned from Escrow, Operating Activity Retirement of Shares Returned from Escrow, Operating Activity Changes in assets and liabilities: Increase (Decrease) in Operating Assets [Abstract] Increase in tenant and straight-line rent receivables, net Increase (Decrease) in Accounts Receivable Increase in restricted cash and escrows Increase (Decrease) in Restricted Cash for Operating Activities Increase in prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets Decrease in accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Decrease in deferred income Increase (Decrease) in Deferred Revenue Net cash provided by operating activities Acquisition of real estate assets and related intangibles Payments to Acquire and Develop Real Estate Capitalized expenditures, net of accruals Payments For Tenant Improvements and Capital Improvements The cash outflow used to prepare the leased premises for tenant's occupancy and other capital improvements to properties held for use. Supplemental Disclosures of Significant Noncash Investing and Financing Activities: Supplemental Cash Flow Information [Abstract] Change in accrued share repurchases as part of an announced plan Increase (Decrease) in Accrued Stock Repurchases Increase (Decrease) in Accrued Stock Repurchases Accrued capital expenditures and deferred lease costs Increase Decrease In Accrued Capital Expenditures And Deferred Lease Costs Net change in the balance of accrued lease acquisition costs and accrued capital expenditures during the period. These accrued costs consist of items such as leasing commissions, lease incentives, procurement fees, tenant improvements, and/or general building improvements. Variable Interest Entities [Abstract] Variable Interest Entities [Abstract] Schedule of Variable Interest Entities Schedule of Variable Interest Entities [Table Text Block] Income Tax For Real Estate Investment Trusts [Table] Income Tax For Real Estate Investment Trusts [Table] Income Tax For Real Estate Investment Trusts [Table] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum [Member] Minimum [Member] Income Tax For Real Estate Investment Trusts [Line Items] Income Tax For Real Estate Investment Trusts [Line Items] Income Tax For Real Estate Investment Trusts [Line Items] Real estate investment trust status required taxable income distribution rate Real Estate Investment Trust Status Required Taxable Income Distribution Rate Real Estate Investment Trust Status Required Taxable Income Distribution Rate Document and Entity Information [Abstract] Document and Entity Information [Abstract] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Unsecured Debt [Member] Secured Pooled Facility [Member] Debt Instrument [Line Items] Proceeds from debt Proceeds from Issuance of Long-term Debt Premium from estimated fair market value adjustment of mortgage loan assumed Net borrowings Line of Credit Facility, Increase (Decrease), Net Repayments Repayments of Long-term Debt Interest payments on debt facilities Interest Paid Capitalized interest Interest Costs Capitalized Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Statement of Comprehensive Income [Abstract] Net income attributable to Piedmont Other comprehensive income/(loss): Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Effective portion of gain/(loss) on derivative instruments that are designated and qualify as cash flow hedges (See Note 5) Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax Plus: Reclassification of previously recorded loss included in net income (See Note 5) Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax Other comprehensive income/(loss) Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Comprehensive income attributable to Piedmont Comprehensive Income (Loss), Net of Tax, Attributable to Parent Commitments and Contingencies Disclosure [Abstract] Loss Contingencies [Table] Capital Expenditures by Type [Axis] Capital Expenditures By Type [Axis] Capital Expenditures By Type [Axis] Capital Expenditures by Type [Domain] Capital Expenditures By Type [Domain] [Domain] for Capital Expenditures By Type [Axis] Non-Incremental Capital Expenditures [Member] NonIncremental Capital Expenditures [Member] NonIncremental Capital Expenditures [Member] Incremental Capital Expenditures [Member] Incremental Capital Expenditures [Member] Incremental Capital Expenditures [Member] Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Tenant Audits and Disputes [Member] Tenant Audits and Disputes [Member] Tenant Audits and Disputes [Member] Letter of Credit Agreements by Expiration Date [Axis] Letter of Credit Agreements by Expiration Date [Axis] Letter of Credit Agreements by Expiration Date [Domain] Letter of Credit Agreements by Expiration Date [Domain] Letter of Credit, July 2014 [Member] Letter of Credit Three, July 2014 [Member] Letter of Credit Three, July 2014 [Member] Loss Contingencies [Line Items] Potential obligations for tenant improvements Commitment to Provide Funding to Tenants for Capital Improvements Commitment to Provide Funding to Tenants for Capital Improvements Tenant audit dispute expense Loss Contingency, Loss in Period Letters of credit outstanding Letters of Credit Outstanding, Amount Letter of credit, renewal period Letter of Credit Renewal Period Letter of Credit Renewal Period Variable Interest Entities Variable Interest Entity Disclosure [Text Block] The entire disclosure for a variable interest entity (VIE), including but not limited to, judgments and assumptions in determining whether to consolidate and in identifying the primary beneficiary, gain (loss) recognized on the initial consolidation of the VIE, terms of arrangements, amounts and classification of the VIE's assets and liabilities, and the entity's maximum exposure to loss. Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Schedule of Real Estate Properties [Table] Schedule of Real Estate Properties [Table] Real Estate, Type of Property [Axis] Real Estate, Type of Property [Axis] Real Estate [Domain] Real Estate [Domain] Office properties [Member] Office properties [Member] Unconsolidated Joint Venture [Member] Unconsolidated Joint Venture [Member] Real Estate Properties [Line Items] Real Estate Properties [Line Items] Number of wholly-owned subsidiaries Number Of Wholly Owned Management Subsidiaries Number Of Wholly Owned Management Subsidiaries Percentage ownership by sole general partner Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest Percentage ownership by sole limited partner Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest Number of real estate properties Number of Real Estate Properties Number of redevelopment assets Number of Real Estate Properties To Be Redeveloped The number of real estate properties owned as of the balance sheet date which are not in service because they are subject to redevelopment. Percentage Leased as of Acquisition Percentage of Leased Real Estate Properties Percentage of Leased Real Estate Properties Percentage of annualized lease revenue Operating Leases, Income Statement, Percentage of Annualized Lease Revenue Operating Leases, Income Statement, Percentage of Annualized Lease Revenue Number of key markets Number of Concentration Markets Number of Markets in which majority of annualized lease revenue is generated Number of operating segments Number of Operating Segments Basis of Presentation and Principles of Consolidation Basis of Accounting, Policy [Policy Text Block] Principles of Consolidation Consolidation, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Deferred Financing Costs Deferred Charges, Policy [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Subsequent Events [Abstract] Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent Event [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Dividends declared (in dollars per share) Common Stock, Dividends, Per Share, Declared Subsequent Events Subsequent Events [Text Block] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Unvested Deferred Stock Awards, Beginning of period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Deferred Stock Awards Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Adjustment to Estimated Future Grants of Performance Share Awards (in shares) Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Adjustment to Estimated Future Grants In Period Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Adjustment to Estimated Future Grants In Period Deferred Stock Awards Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Deferred Stock Awards Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Unvested Deferred Stock Awards, End of period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Unvested Deferred Stock Awards, Weighted-Average Grant Date Fair Value, Beginning of period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Deferred Stock Awards Granted, Weighted-Average Grant Date Fair Value (in dollars per share) Adjustment to Estimated Future Grants of Performance Share Awards (Weighted-Average Grant Date Fair Value) Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Adjustment to Estimated Future Grants In Period, Weighted Average Grant Date Fair Value Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Adjustment to Estimated Future Grants In Period, Weighted Average Grant Date Fair Value Deferred Stock Awards Vested, Weighted-Average Grant Date Fair Value (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Deferred Stock Awards Forfeited, Weighted-Average Grant Date Fair Value (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Unvested Deferred Stock Awards, Weighted-Average Grant Date Fair Value, End of period (in dollars per share) Other income/(expense) Impairment loss Debt Debt Disclosure [Text Block] Discontinued Operations and Disposal Groups [Abstract] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table] Disposal Group Name [Axis] Disposal Group Name [Axis] Disposal Groups, Including Discontinued Operations, Name [Domain] Disposal Groups, Including Discontinued Operations, Name [Domain] 2020 W. 89th Street Building [Member] Building 2020 [Member] Building 2020 [Member] Two Park Center [Member] TWO PARK CENTER [Member] TWO PARK CENTER [Member] 1111 Durham Avenue [Member] Durham Avenue 1111 [Member] Durham Avenue 1111 [Member] 1200 Enclave Parkway [Member] ENCLAVE PARKWAY 1200 [Member] ENCLAVE PARKWAY 1200 [Member] 350 Spectrum Loop building [Member] SPECTRUM LOOP 350 [Member] SPECTRUM LOOP 350 [Member] 8700 South Price Road [Member] SOUTH PRICE ROAD 8700 [Member] SOUTH PRICE ROAD 8700 [Member] 11107 and 11109 Sunset Hills Road [Member] Sunset Hills Road, 11107 and 11109 [Member] Sunset Hills Road, 11107 and 11109 [Member] 1441 West Long Lake Road [Member] West Long Lake Road 1441 [Member] West Long Lake Road 1441 [Member] 4685 Investment Drive [Member] INVESTMENT DRIVE 4685 [Member] INVESTMENT DRIVE 4685 [Member] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Sales price of building Contract Price For Sale of Property or Portfolio of Properties Contract Price For Sale of Property or Portfolio of Properties Gain/(Loss) on Sale Gains (Losses) on Sales of Investment Real Estate Net Sales Proceeds Ownership interest (percentage) Equity Method Investment, Ownership Percentage Sales price for equity method investment Contract Price For Sale Of Equity Method Investments Contract Price For Sale Of Equity Method Investments Loss on sale of equity method investment Equity Method Investment, Realized Gain (Loss) on Disposal Rental income Disposal Group, Including Discontinued Operation, Rental Income Tenant reimbursements Disposal Group, Including Discontinued Operation, Tenant Reimbursement Disposal Group, Including Discontinued Operation, Tenant Reimbursement Property management fee revenue Disposal Group, Including Discontinued Operation, Property Management Fee Revenue Disposal Group, Including Discontinued Operation, Property Management Fee Revenue Revenue Disposal Group, Including Discontinued Operation, Revenue Expenses: Expenses [Abstract] Expenses [Abstract] Property operating costs Disposal Group, Including Discontinued Operation, Property Operating Costs Disposal Group, Including Discontinued Operation, Property Operating Costs Depreciation Disposal Group, Including Discontinued Operation, Depreciation Disposal Group, Including Discontinued Operation, Depreciation Amortization Disposal Group, Including Discontinued Operation, Amortization Disposal Group, Including Discontinued Operation, Amortization General and administrative Disposal Group, Including Discontinued Operation, General and Administrative Expense Expenses Disposal Group, Including Discontinued Operation, Operating Expense Other income/(expense) Other Income and Expenses [Abstract] Other income/(expense) Disposal Group Including Discontinued Operation Interest And Other Income Expense Disposal Group Including Discontinued Operation Interest And Other Income Expense Net recoveries from casualty events and litigation settlements Disposal Group Including Discontinued Operation Net Loss Gain From Casualty Event The net charge/recovery against earnings in the period related to a fire, explosion, or natural disaster (hurricane, earthquake) for disposal group, including discontinued operation. Nonoperating income (expense) Discontinued Operation, Nonoperating Income (Expense) Discontinued Operation, Nonoperating Income (Expense) Operating income, excluding gain/(loss) on sale Weighted-average common shares – basic Deferred stock awards (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Stock Based Compensation Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Stock Awards 1, Granted April 4, 2012 [Member] Stock Awards 1, Granted April 4 2012 [Member] Stock Awards 1, Granted April 4 2012 [Member] Stock Awards 2, Granted April 4, 2012 [Member] Stock Awards 2, Granted April 4 2012 [Member] Stock Awards 2, Granted April 4 2012 [Member] Stock Awards, Granted April 2, 2013 [Member] Stock Awards, Granted April 2, 2013 [Member] Stock Awards, Granted April 2, 2013 [Member] Stock Awards 2, Granted April 2, 2013 [Member] Stock Awards 2, Granted April 2, 2013 [Member] Stock Awards 2, Granted April 2, 2013 [Member] Stock Awards, Granted January 2014 [Member] Stock Awards, Granted January 2014 [Member] Stock Awards, Granted January 2014 [Member] Stock Awards, Granted May 2014 [Member] Stock Awards, Granted May 2014 [Member] Stock Awards, Granted May 2014 [Member] Stock Awards 2, Granted May 2014 [Member] Stock Awards 2, Granted May 2014 [Member] Stock Awards 2, Granted May 2014 Net Shares Granted Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Net Shares Granted The number of share grants, net of shares surrended for taxes, made on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Grant Date Fair Value Of the shares granted, % vested Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested Percent At Reported Date Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Vested Percent At Reported Date Of the shares granted, % expected to vest in one year Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Expected to Vest Within One Year, Percent Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Expected to Vest Within One Year, Percent Of the shares granted, % expected to vest in two years Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Expected to Vest In Two Years, Percent Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Expected to Vest In Two Years, Percent Of the shares granted, % expected to vest in three years Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Expected to Vest In Three Years, Percent Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Expected to Vest In Three Years, Percent Of the shares granted, % expected to vest in four years Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Expected to Vest In Four Years, Percent Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Expected to Vest In Four Years, Percent Unvested Shares Schedule of Nonvested Share Activity Schedule of Nonvested Share Activity [Table Text Block] Schedule of Outstanding Employee Deferred Stock Awards Schedule of Outstanding Employee Deferred Stock Awards [Table Text Block] Schedule of Outstanding Employee Deferred Stock Awards [Table Text Block] Property Dispositions and Discontinued Operations Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Schedule of Disposal Groups, Including Discontinued Operations, Results Of Operations Schedule of Disposal Groups, Including Discontinued Operations, Results Of Operations [Table Text Block] Schedule of Disposal Groups, Including Discontinued Operations, Results Of Operations [Table Text Block] Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block] Schedule of Variable Interest Entities [Table] Schedule of Variable Interest Entities [Table] Variable Interest Entities by Classification of Entity [Axis] Variable Interest Entities [Axis] Variable Interest Entity, Classification [Domain] Variable Interest Entity, Classification [Domain] Eye Street 1201 NW Associates LLC [Member] Eye Street 1201 NW Associates LLC [Member] Eye Street 1225 NW Associates LLC [Member] Eye Street 1225 NW Associates LLC [Member] Piedmont 500 W. Monroe Fee LLC [Member] Piedmont 500 W. Monroe Fee LLC [Member] Suwanee Gateway One LLC [Member] Suwanee Gateway One LLC [Member] Medici Atlanta LLC [Member] Medici Atlanta LLC [Member] TownPark 400, LLC [Member] TownPark 400, LLC [Member] TownPark 400, LLC [Member] Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] Piedmont’s % Ownership of Entity Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage Net Carrying Amount Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net Variable interest entity, cash flow percent entitled to entity Variable Interest Entity Cash Flow Percent Entitled To Entity Variable Interest Entity Cash Flow Percent Entitled To Entity Buildings and improvements, less accumulated depreciation Intangible lease assets, less accumulated amortization Tenant and straight-line rent receivables, net Tenant Receivables Including Straight Line Rental Revenue Receivables Tenant Receivables Including Straight Line Rental Revenue Receivables Advances to affiliates Due from Affiliates Investment in subsidiary Investment In Subsidiary Amount of Investment in an affiliate by means of direct or indirect ownership Notes receivable Notes Receivable, Intercompany Transactions Notes Receivable, Intercompany Transactions Prepaid expenses, restricted cash, escrows, and other assets Prepaid Expense and Restricted Cash and Cash Equivalents and Other Assets Prepaid Expense and Restricted Cash and Cash Equivalents and Other Assets Deferred financing costs, net Deferred lease costs, net Debt Long-term Debt Advances from affiliates Due to Affiliate Intangible lease liabilities, net Stockholders’ Equity: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Common stock Statement, Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Common Stock [Member] Additional Paid-In Capital [Member] Additional Paid-in Capital [Member] Cumulative Distributions in Excess of Earnings [Member] Retained Earnings [Member] Other Comprehensive Loss [Member] Accumulated Other Comprehensive Income (Loss) [Member] Non-controlling Interest [Member] Noncontrolling Interest [Member] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Balance Balance (in shares) Share repurchases as part of an announced plan Stock Repurchased and Retired During Period, Value Share repurchases as part of an announced plan, shares Stock Repurchased and Retired During Period, Shares Retirement of shares returned from escrow Retirement of Shares Returned from Escrow Retirement of Shares Returned from Escrow Retirement of shares returned from escrow, shares Retirement of Shares Returned From Escrow, Shares Retirement of Shares Returned From Escrow, Shares Offering costs associated with the issuance of common stock Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs Dividends to common stockholders ($0.80 (YTD 2013) and $0.40 (YTD 2014) per share), distributions to noncontrolling interest, and dividends reinvested Dividends, Minority Interest (Decrease) From Distributions to Noncontrolling Interest Holders and Stock Issued During Period Value Dividend Reinvestment Plan Sum of a) Equity impact of aggregate cash, stock, and paid-in-kind dividends declared for all securities (common shares, preferred shares, etc.) during the period, b) Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders, and c) Value of stock issued during the period from a dividend reinvestment plan (DRP). A dividend reinvestment plan allows the holder of the stock to reinvest dividends paid to them by the entity on new issues of stock or stock purchased and reissued by the entity. Shares issued and amortized under the 2007 Omnibus Incentive Plan, net of tax Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures Shares issued and amortized under the 2007 Omnibus Incentive Plan, net of tax (in shares) Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures Net income attributable to noncontrolling interest Net Income (Loss) Attributable to Noncontrolling Interest Other comprehensive income (loss) Balance Balance (in shares) Fair Value, by Balance Sheet Grouping Fair Value, by Balance Sheet Grouping [Table Text Block]