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Consolidated Statements of Changes In Equity (USD $) | Total | Common Stock | Paid-in Capital | Cumulative Series Eight Point Zero Three Four Percent Redeemable Perpetual Preferred Stock [Member] | Cumulative Series C Six Point Seven Five Percent Redeemable Perpetual Preferred Stock [Member] | Distributions in Excess of Accumulated Comprehensive Earnings | Non-controlling Interests - Common OP Units | Series B Subordinated Non-Voting Cumulative Redeemable Preferred Stock | Accumulated Other Comprehensive Income
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2010 | $ 260,158,000 | $ 726,000 | $ 463,306,000 | $ 0 | $ 0 | $ (237,002,000) | $ 33,128,000 | $ 0 | $ 0
Payments for Repurchase of Preferred Stock and Preference Stock | 0 |  |  |  |  |  |  |  |
Conversion of OP Units to common stock | 0 | 4,000 | 4,063,000 | 0 | 0 | 0 | (4,067,000) | 0 | 0
Issuance of common stock through exercise of options | 4,571,000 | 4,000 | 4,567,000 | 0 | 0 | 0 | 0 | 0 | 0
Issuance of common stock through employee stock purchase plan | 913,000 | 0 | 913,000 | 0 | 0 | 0 | 0 | 0 | 0
Common stock offering | 344,049,000 | 60,000 | 343,989,000 | 0 | 0 | 0 | 0 | 0 | 0
Compensation expenses related to stock options and restricted stock | 5,762,000 | 0 | 5,762,000 | 0 | 0 | 0 | 0 | 0 | 0
Repurchase of common stock or Common OP Units | (1,682,000) | 0 | (1,682,000) | 0 | 0 | 0 | 0 | 0 | 0
Adjustment for Common OP Unitholders in the Operating Partnership | 0 | 0 | (47,100,000) | 0 | 0 | 0 | 47,100,000 | 0 | 0
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax | 2,547,000 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2,547,000
Stock issued for Acquisition | 224,283,000 | 17,000 | 110,478,000 | 0 | 0 | 0 | 0 | 113,788,000 | 0
Redemption of Series B Preferred Stock for Common stock | 0 | 17,000 | 113,771,000 | 0 | 0 | 0 | 0 | (113,788,000) | 0
Net income | 22,775,000 |  |  |  |  |  |  |  |
Distributions | (62,573,000) | 0 | 0 | 0 | 0 | (55,794,000) | (6,313,000) | (466,000) | 0
Net Income (Loss) Attributable to Parent | 26,346,000 | 0 | 0 | 0 | 0 | 22,775,000 | 3,105,000 | 466,000 | 0
Ending Balance at Dec. 31, 2011 | 799,280,000 | 828,000 | 998,067,000 | 0 | 0 | (270,021,000) | 72,953,000 | 0 | (2,547,000)
Payments for Repurchase of Preferred Stock and Preference Stock | (63,856,000) | 0 | 0 | (63,856,000) | 0 | 0 | 0 | 0 | 0
Conversion of OP Units to common stock | 0 | 3,000 | 6,717,000 | 0 | 0 | 0 | (6,720,000) | 0 | 0
Issuance of common stock through exercise of options | 3,856,000 | 1,000 | 3,855,000 | 0 | 0 | 0 | 0 | 0 | 0
Issuance of common stock through employee stock purchase plan | 1,076,000 | 0 | 1,076,000 | 0 | 0 | 0 | 0 | 0 | 0
Compensation expenses related to stock options and restricted stock | 5,797,000 | 0 | 5,797,000 | 0 | 0 | 0 | 0 | 0 | 0
Repurchase of common stock or Common OP Units | (1,287,000) | 0 | (1,287,000) | 0 | 0 | 0 | 0 | 0 | 0
Adjustment for Common OP Unitholders in the Operating Partnership | 0 | 0 | (450,000) | 0 | 0 | 0 | 450,000 | 0 | 0
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax | 43,000 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 43,000
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs, Preferred Stock Offering Costs | 757,000 | 0 | 757,000 | 0 | 0 | 0 | 0 | 0 | 0
Net income | 54,779,000 |  |  |  |  |  |  |  |
Distributions | (79,106,000) | 0 | 0 | 0 | 0 | (72,410,000) | (6,696,000) | 0 | 0
Stock Exchange | 0 | 0 | 0 | (136,144,000) | 136,144,000 | 0 | 0 | 0 | 0
Net Income (Loss) Attributable to Parent | 59,846,000 | 0 | 0 | 0 | 0 | 54,779,000 | 5,067,000 | 0 | 0
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs | (504,000) | 0 | (504,000) | 0 | 0 | 0 | 0 | 0 | 0
Temporary Equity Conversion To Permanent Equity | 200,000,000 | 0 | 0 | 200,000,000 | 0 | 0 | 0 | 0 | 0
Ending Balance at Dec. 31, 2012 | 924,302,000 | 832,000 | 1,012,514,000 | 0 | 136,144,000 | (287,652,000) | 65,054,000 | 0 | (2,590,000)
Payments for Repurchase of Preferred Stock and Preference Stock | 0 |  |  |  |  |  |  |  |
Conversion of OP Units to common stock | 0 | 0 | 280,000 | 0 | 0 | 0 | (280,000) | 0 | 0
Issuance of common stock through exercise of options | 248,000 | 1,000 | 247,000 | 0 | 0 | 0 | 0 | 0 | 0
Issuance of common stock through employee stock purchase plan | 720,000 | 1,000 | 719,000 | 0 | 0 | 0 | 0 | 0 | 0
Compensation expenses related to stock options and restricted stock | 5,952,000 | 0 | 5,952,000 | 0 | 0 | 0 | 0 | 0 | 0
Repurchase of common stock or Common OP Units | (1,121,000) | 0 | (1,121,000) | 0 | 0 | 0 | 0 | 0 | 0
Adjustment for Common OP Unitholders in the Operating Partnership | 0 | 0 | (6,730,000) | 0 | 0 | 0 | 6,730,000 | 0 | 0
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax | (1,663,000) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | (1,663,000)
Net income | 106,919,000 |  |  |  |  |  |  |  |
Distributions | (100,194,000) | 0 | 0 | 0 | (9,280,000) | (83,350,000) | (7,564,000) | 0 | 0
Net Income (Loss) Attributable to Parent | 125,905,000 | 0 | 0 | 0 | 9,280,000 | 106,919,000 | 9,706,000 | 0 | 0
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs | 544,000 | 0 | 544,000 | 0 | 0 | 0 | 0 | 0 | 0
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs, Preferred Stock Offering Costs | (3,412,000) | 0 | 3,412,000 | 0 | 0 | 0 | 0 | 0 | 0
Stock Exchange | 9,686,000 | 0 | 0 | 0 | 0 | 0 | 9,686,000 | 0 | 0
Ending Balance at Dec. 31, 2013 | $ 963,205,000 | $ 834,000 | $ 1,021,365,000 | $ 0 | $ 136,144,000 | $ (264,083,000) | $ 69,872,000 | $ 0 | $ (927,000)

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- Definition Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration