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Consolidated Statement of Stockholders' Equity (USD $) In Thousands | Total | Common Stock | Additional Paid-in-Capital | Retained Earnings | Accumulated Other Comprehensive Income (Loss) | Treasury Stock | 3.00% Convertible Notes [Member] | 3.00% Convertible Notes [Member] Additional Paid-in-Capital | 2.25% Convertible Notes [Member] | 2.25% Convertible Notes [Member] Additional Paid-in-Capital
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning balance at Dec. 31, 2013 | $ 1,035,175 | $ 257 | $ 368,641 | $ 776,101 | $ (51,677) | $ (58,147) |  |  |  |
Beginning balance, shares at Dec. 31, 2013 |  | 25,746 |  |  |  |  |  |  |  |
Net income | 74,327 |  |  |  |  |  |  |  |  |
Other comprehensive income (loss), net | (7,823) |  |  |  | (7,823) |  |  |  |  |
Treasury Stock, Value, Acquired, Cost Method | (33,771) |  |  |  |  | (33,771) |  |  |  |
Redemption of equity component of 3.00% Convertible Notes |  |  |  |  |  | (36,860) | (118,003) | (118,003) | (16,071) | 20,789
Call Options and Warrant Equity Settlement |  |  |  |  |  | (33,772) | 32,641 | 32,641 | 0 | 33,772
Temporary equity adjustment related to 2.25% and 3.00% Convertible Notes | (14,163) |  | (14,163) |  |  |  |  |  |  |
Issuance of common and treasury shares to employee benefit plans, shares |  | 15 |  |  |  |  |  |  |  |
Issuance of common and treasury shares to employee benefit plans | 186 | 1 | (8,684) |  |  | 8,869 |  |  |  |
Stock-based compensation | 11,836 |  | 11,836 |  |  |  |  |  |  |
Tax effect from options exercised and the vesting of restricted shares | 1,103 |  | 1,103 |  |  |  |  |  |  |
Cash dividends | (12,254) |  |  | (12,254) |  |  |  |  |  |
Ending balance at Sep. 30, 2014 | $ 985,325 | $ 258 | $ 286,354 | $ 838,174 | $ (59,500) | $ (79,961) |  |  |  |
Ending balance, shares at Sep. 30, 2014 |  | 25,761 |  |  |  |  |  |  |  |

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