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CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (USD $) In Thousands | Total | Convertible Perpetual Preferred Stock | Common Stock | Additional Paid-In Capital | Treasury Stock | Accumulated Deficit | Noncontrolling Interest
--- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2009 | $ (195,905) | $ 5 | $ 203 | $ 2,961,613 | $ (25,079) | $ (3,142,699) | $ 10,052
Beginning Balance (in shares) at Dec. 31, 2009 |  |  | 208,715 |  |  |  |
Beginning Balance (in shares) at Dec. 31, 2009 |  | 4,650 |  |  |  |  |
Distributions to noncontrolling interest owners | (3,515) |  |  |  |  |  | (3,515)
Contributions from noncontrolling interest owners | 306 |  |  |  |  |  | 306
Issuance of convertible perpetual preferred stock, net (in shares) |  | 3,000 |  |  |  |  |
Issuance of convertible perpetual preferred stock, net | 290,704 | 3 |  | 290,701 |  |  |
Issuance of common stock in acquisition (in shares) |  |  | 190,280 |  |  |  |
Issuance of common stock in acquisition | 1,246,334 |  | 190 | 1,246,144 |  |  |
Common stock issued under legal settlement (in shares) |  |  | 1,789 |  |  |  |
Common stock issued under legal settlement | 12,200 |  | 2 | (1,835) | 14,033 |  |
Purchase of treasury stock | (6,275) |  |  |  | (6,275) |  |
Retirement of treasury stock | 0 |  |  | (11,268) | 11,268 |  |
Stock purchase - retirement plans, net of distributions (in shares) |  |  | (96) |  |  |  |
Stock purchase - retirement plans, net of distributions | 4,833 |  |  | 2,327 | 2,506 |  |
Stock awards assumed in acquisition | 2,152 |  |  | 2,152 |  |  |
Stock-based compensation | 39,066 |  |  | 39,066 |  |  |
Stock-based compensation excess tax benefit | 15 |  |  | 15 |  |  |
Issuance of restricted stock awards, net of cancellations (in shares) |  |  | 5,672 |  |  |  |
Issuance of restricted stock awards, net of cancellations | 0 |  | 3 | (3) |  |  |
Net income | 195,010 |  |  |  |  | 190,565 | 4,445
Convertible perpetual preferred stock dividends | (37,442) |  |  |  |  | (37,442) |
Ending Balance at Dec. 31, 2010 | 1,547,483 | 8 | 398 | 4,528,912 | (3,547) | (2,989,576) | 11,288
Ending Balance (in shares) at Dec. 31, 2010 |  | 7,650 |  |  |  |  |
Ending Balance (in shares) at Dec. 31, 2010 |  |  | 406,360 |  |  |  |
Issuance of units by royalty trusts | 917,528 |  |  |  |  |  | 917,528
Distributions to noncontrolling interest owners | (60,200) |  |  |  |  |  | (60,200)
Preferred stock issuance expense | (231) |  |  | (231) |  |  |
Issuance of common stock in acquisition | 0 |  |  |  |  |  |
Purchase of treasury stock | (10,834) |  |  |  | (10,834) |  |
Retirement of treasury stock | 0 |  |  | (10,834) | 10,834 |  |
Stock purchase - retirement plans, net of distributions (in shares) |  |  | (405) |  |  |  |
Stock purchase - retirement plans, net of distributions | 568 |  |  | 3,179 | (2,611) |  |
Stock-based compensation | 47,778 |  |  | 47,778 |  |  |
Stock-based compensation excess tax benefit | 53 |  |  | 53 |  |  |
Issuance of restricted stock awards, net of cancellations (in shares) |  |  | 5,998 |  |  |  |
Issuance of restricted stock awards, net of cancellations | 0 |  | 1 | (1) |  |  |
Net income | 162,388 |  |  |  |  | 108,065 | 54,323
Convertible perpetual preferred stock dividends | (55,583) |  |  |  |  | (55,583) |
Ending Balance at Dec. 31, 2011 | 2,548,950 | 8 | 399 | 4,568,856 | (6,158) | (2,937,094) | 922,939
Ending Balance (in shares) at Dec. 31, 2011 | 7,650 | 7,650 |  |  |  |  |
Ending Balance (in shares) at Dec. 31, 2011 | 411,953 |  | 411,953 |  |  |  |
Issuance of units by royalty trusts | 587,086 |  |  |  |  |  | 587,086
Sale of royalty trust units | 139,360 |  |  | 79,056 |  |  | 60,304
Distributions to noncontrolling interest owners | (181,727) |  |  |  |  |  | (181,727)
Issuance of common stock in acquisition (in shares) |  |  | 73,962 |  |  |  |
Issuance of common stock in acquisition | 542,138 |  | 74 | 542,064 |  |  |
Purchase of treasury stock | (11,312) |  |  |  | (11,312) |  |
Retirement of treasury stock | 0 |  |  | (11,312) | 11,312 |  |
Stock purchase - retirement plans, net of distributions (in shares) |  |  | (345) |  |  |  |
Stock purchase - retirement plans, net of distributions | (298) |  |  | 2,146 | (2,444) |  |
Stock-based compensation | 47,228 |  |  | 47,228 |  |  |
Stock-based compensation excess tax benefit | (16) |  |  | (16) |  |  |
Issuance of restricted stock awards, net of cancellations (in shares) |  |  | 4,789 |  |  |  |
Issuance of restricted stock awards, net of cancellations | 0 |  | 3 | (3) |  |  |
Net income | 246,571 |  |  |  |  | 141,571 | 105,000
Convertible perpetual preferred stock dividends | (55,525) |  |  |  |  | (55,525) |
Ending Balance at Dec. 31, 2012 | $ 3,862,455 | $ 8 | $ 476 | $ 5,228,019 | $ (8,602) | $ (2,851,048) | $ 1,493,602
Ending Balance (in shares) at Dec. 31, 2012 | 7,650 | 7,650 |  |  |  |  |
Ending Balance (in shares) at Dec. 31, 2012 | 490,359 |  | 490,359 |  |  |  |

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