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Consolidated Statements of Changes in Stockholders’ Equity (USD $) | Preferred Stock [Member] Series B Preferred Stock [Member] | Preferred Stock [Member] Series C Mandatory Convertible Preferred Stock [Member] Mandatory Convertible Preferred Stock [Member] | Preferred Stock [Member] Series C Mandatory Convertible Preferred Stock [Member] | Common Stock [Member] Mandatory Convertible Preferred Stock [Member] | Common Stock [Member] Stock Issued To Directors [Member] | Common Stock [Member] Bonuses Paid Through Stock Issuances [Member] | Common Stock [Member] | Additional Paid-in Capital [Member] Mandatory Convertible Preferred Stock [Member] | Additional Paid-in Capital [Member] Stock Issued To Directors [Member] | Additional Paid-in Capital [Member] Bonuses Paid Through Stock Issuances [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] Series B Preferred Stock [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Treasury Stock [Member] | Series B Preferred Stock [Member] | Stock Issued To Directors [Member] | Bonuses Paid Through Stock Issuances [Member] | Total
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Balances, at Dec. 31, 2010 | $ 39,000 |  | $ 504,000 |  |  |  | $ 64,704,000 |  |  |  | $ 1,179,751,000 |  | $ (265,577,000) | $ (15,117,000) | $ (2,051,000) |  |  |  | $ 962,253,000
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | 151,164,000 |  |  |  |  |  | 151,164,000
Options exercised (78,000 shares) |  |  |  |  |  |  | 19,000 |  |  |  | 460,000 |  |  |  |  |  |  |  | 479,000
Bonuses and other compensation and Stock issued to directors |  |  |  |  | 11,000 | 2,000 |  |  | 331,000 | 58,000 |  |  |  |  |  |  | 342,000 | 60,000 |
6.5% Mandatory Convertible Preferred Stock dividends paid in common stock (18,872,000 shares) |  | (504,000) |  | 4,719,000 |  |  |  | (4,215,000) |  |  |  |  |  |  |  |  |  |  |
Warrants exercised |  |  |  |  |  |  | 536,000 |  |  |  | 4,771,000 |  |  |  |  |  |  |  | 5,307,000
Other comprehensive loss |  |  |  |  |  |  |  |  |  |  |  |  |  | (8,381,000) |  |  |  |  | (8,381,000)
Series B Preferred Stock dividends declared |  |  |  |  |  |  |  |  |  |  |  | (552,000) |  |  |  | (552,000) |  |  | 552,000
Common stock dividends declared |  |  |  |  |  |  |  |  |  |  |  |  | (5,592,000) |  |  |  |  |  | (5,592,000)
Restricted stock units granted |  |  |  |  |  |  |  |  |  |  | 1,671,000 |  |  |  |  |  |  |  | 1,671,000
Restricted stock unit distributions |  |  |  |  |  |  | 80,000 |  |  |  | (80,000) |  |  |  | (469,000) |  |  |  | (469,000)
Common stock issued for assets purchased |  |  |  |  |  |  | 1,349,000 |  |  |  | 32,482,000 |  |  |  |  |  |  |  | 33,831,000
Balances, at Dec. 31, 2011 | 39,000 |  |  |  |  |  | 71,420,000 |  |  |  | 1,215,229,000 |  | (120,557,000) | (23,498,000) | (2,520,000) |  |  |  | 1,140,113,000
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | 14,954,000 |  |  |  |  |  | 14,954,000
Bonuses and other compensation and Stock issued to directors |  |  |  |  | 19,000 |  |  |  | 336,000 |  |  |  |  |  |  |  | 355,000 |  |
Warrants exercised |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0
Other comprehensive loss |  |  |  |  |  |  |  |  |  |  |  |  |  | (420,000) |  |  |  |  | (420,000)
Series B Preferred Stock dividends declared |  |  |  |  |  |  |  |  |  |  |  | (552,000) |  |  |  | (552,000) |  |  | 552,000
Repurchase of common shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (1,941,000) |  |  |  | (1,941,000)
Common stock dividends declared |  |  |  |  |  |  | 1,000 |  |  |  | 11,000 |  | (17,133,000) |  |  |  |  |  | (17,121,000)
Restricted stock units granted |  |  |  |  |  |  |  |  |  |  | 2,746,000 |  |  |  |  |  |  |  | 2,746,000
Restricted stock unit distributions |  |  |  |  |  |  | 59,000 |  |  |  | (39,000) |  |  |  | (203,000) |  |  |  | (183,000)
Balances, at Dec. 31, 2012 | 39,000 |  |  |  |  |  | 71,499,000 |  |  |  | 1,218,283,000 |  | (123,288,000) | (23,918,000) | (4,664,000) |  |  |  | 1,137,951,000
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | (25,130,000) |  |  |  |  |  | (25,130,000)
Bonuses and other compensation and Stock issued to directors |  |  |  |  |  |  | 31,000 |  |  |  | 356,000 |  |  |  |  |  |  |  | 387,000
Warrants exercised |  |  |  |  |  |  | 6,000 |  |  |  | 55,000 |  |  |  |  |  |  |  | 61,000
Other comprehensive loss |  |  |  |  |  |  |  |  |  |  |  |  |  | (2,381,000) |  |  |  |  | (2,381,000)
Series B Preferred Stock dividends declared |  |  |  |  |  |  |  |  |  |  |  | (552,000) |  |  |  | (552,000) |  |  | 552,000
Repurchase of common shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (286,000) |  |  |  | (286,000)
Common stock dividends declared |  |  |  |  |  |  | 2,000 |  |  |  | 19,000 |  | (6,012,000) |  | (71,000) |  |  |  | (6,062,000)
Restricted stock units granted |  |  |  |  |  |  |  |  |  |  | 4,188,000 |  |  |  |  |  |  |  | 4,188,000
Restricted stock unit distributions |  |  |  |  |  |  | 109,000 |  |  |  | (109,000) |  |  |  | (59,000) |  |  |  | (59,000)
Common stock issued for assets purchased |  |  |  |  |  |  | 14,249,000 |  |  |  | 204,053,000 |  |  |  |  |  |  |  | 218,302,000
Balances, at Dec. 31, 2013 | $ 39,000 |  |  |  |  |  | $ 85,896,000 |  |  |  | $ 1,426,845,000 |  | $ (154,982,000) | $ (26,299,000) | $ (5,080,000) |  |  |  | $ 1,326,419,000

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