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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Thousands, except Share data, unless otherwise specified | Total | Common Stock | Additional Paid-in Capital | Accumulated Other Comprehensive Income (Loss) | Treasury Stock | Accumulated Deficit | Noncontrolling Interest
--- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2009 | $ 1,816,859 | $ 682 | $ 3,434,618 | $ (27,879) | $ (201,935) | $ (1,565,489) | $ 176,862
Balance (in shares) at Dec. 31, 2009 |  |  |  |  | (5,667,897) |  |
Balance (in shares) at Dec. 31, 2009 |  | 68,195,447 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Treasury stock purchased | (2,061) |  |  |  | (2,061) |  |
Treasury stock purchased (in shares) |  |  |  |  | (84,922) |  |
Options exercised | 840 | 1 | 839 |  |  |  |
Options exercised (in shares) |  | 50,494 |  |  |  |  |
Shares issued in employee stock purchase plan | 2,224 | 1 | 2,223 |  |  |  |
Shares issued in employee stock purchase plan |  | 102,156 |  |  |  |  |
Stock-based compensation, net of forfeitures | 23,000 | 7 | 22,408 |  |  |  | 585
Stock-based compensation, net of forfeitures (in shares) |  | 722,930 |  |  |  |  |
Stock-based compensation, net of forfeitures (in shares) |  |  |  |  | (88,268) |  |
Income tax benefit from stock-based compensation expense | (895) |  | (895) |  |  |  |
Net proceeds from sale of Partnership units, net of tax | 85,265 |  | 41,111 | 881 |  |  | 43,273
Cash distribution to noncontrolling unitholders of the Partnership | (18,030) |  |  |  |  |  | (18,030)
Other | (14) |  | (12) |  |  |  | (2)
Comprehensive income (loss): |  |  |  |  |  |  |
Net income (loss) | (113,241) |  |  |  |  | (101,825) | (11,416)
Derivative gain (loss), net of reclassifications to earnings and tax | 8,797 |  |  | 7,093 |  |  | 1,704
Amortization of payments to terminate interest rate swaps, net of tax | 2,006 |  |  | 2,006 |  |  |
Foreign currency translation adjustment | (2,326) |  |  | (2,326) |  |  |
Balance at Dec. 31, 2010 | 1,802,424 | 691 | 3,500,292 | (20,225) | (203,996) | (1,667,314) | 192,976
Balance (in shares) at Dec. 31, 2010 |  |  |  |  | (5,841,087) |  |
Balance (in shares) at Dec. 31, 2010 |  | 69,071,027 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Treasury stock purchased | (2,941) |  |  |  | (2,941) |  |
Treasury stock purchased (in shares) |  |  |  |  | (157,756) |  |
Options exercised | 526 |  | 526 |  |  |  |
Options exercised (in shares) |  | 32,545 |  |  |  |  |
Shares issued in employee stock purchase plan | 1,887 | 1 | 1,886 |  |  |  |
Shares issued in employee stock purchase plan |  | 153,489 |  |  |  |  |
Stock-based compensation, net of forfeitures | 20,153 | 12 | 20,006 |  |  |  | 135
Stock-based compensation, net of forfeitures (in shares) |  | 1,149,949 |  |  |  |  |
Stock-based compensation, net of forfeitures (in shares) |  |  |  |  | (144,746) |  |
Income tax benefit from stock-based compensation expense | (1,092) |  | (1,092) |  |  |  |
Net proceeds from sale of Partnership units, net of tax | 216,094 |  | 123,904 |  |  |  | 92,190
Cash distribution to noncontrolling unitholders of the Partnership | (39,870) |  |  |  |  |  | (39,870)
Other | (189) |  | (190) |  |  |  | 1
Comprehensive income (loss): |  |  |  |  |  |  |
Net income (loss) | (339,618) |  |  |  |  | (340,608) | 990
Derivative gain (loss), net of reclassifications to earnings and tax | (2,126) |  |  | 1,490 |  |  | (3,616)
Adjustments from sale of Partnership units | 1,184 |  |  | 1,184 |  |  |
Amortization of payments to terminate interest rate swaps, net of tax | 20,267 |  |  | 20,267 |  |  |
Foreign currency translation adjustment | 3,343 |  |  | 3,343 |  |  |
Balance at Dec. 31, 2011 | 1,680,042 | 704 | 3,645,332 | 6,059 | (206,937) | (2,007,922) | 242,806
Balance (in shares) at Dec. 31, 2011 | (6,143,589) |  |  |  | (6,143,589) |  |
Balance (in shares) at Dec. 31, 2011 |  | 70,407,010 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Treasury stock purchased | (2,422) |  |  |  | (2,422) |  |
Treasury stock purchased (in shares) | (157,233) |  |  |  | (157,233) |  |
Options exercised | 562 |  | 562 |  |  |  |
Options exercised (in shares) |  | 34,285 |  |  |  |  |
Shares issued in employee stock purchase plan | 1,635 | 1 | 1,634 |  |  |  |
Shares issued in employee stock purchase plan |  | 132,784 |  |  |  |  |
Stock-based compensation, net of forfeitures | 15,970 | 8 | 15,373 |  |  |  | 589
Stock-based compensation, net of forfeitures (in shares) |  | 717,151 |  |  |  |  |
Stock-based compensation, net of forfeitures (in shares) |  |  |  |  | (75,604) |  |
Income tax benefit from stock-based compensation expense | (1,345) |  | (1,345) |  |  |  |
Net proceeds from sale of Partnership units, net of tax | 85,122 |  | 49,202 |  |  |  | 35,920
Cash distribution to noncontrolling unitholders of the Partnership | (57,084) |  |  |  |  |  | (57,084)
Comprehensive income (loss): |  |  |  |  |  |  |
Net income (loss) | (37,169) |  |  |  |  | (39,486) | 2,317
Derivative gain (loss), net of reclassifications to earnings and tax | 5,879 |  |  | 6,781 |  |  | (902)
Adjustments from sale of Partnership units | 360 |  |  | 360 |  |  |
Amortization of payments to terminate interest rate swaps, net of tax | 6,947 |  |  | 6,947 |  |  |
Foreign currency translation adjustment | 3,762 |  |  | 3,762 |  |  |
Balance at Dec. 31, 2012 | $ 1,702,259 | $ 713 | $ 3,710,758 | $ 23,909 | $ (209,359) | $ (2,047,408) | $ 223,646
Balance (in shares) at Dec. 31, 2012 | (6,376,426) |  |  |  | (6,376,426) |  |
Balance (in shares) at Dec. 31, 2012 |  | 71,291,230 |  |  |  |  |

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