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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands | Total | Common Stock | Shares Held Under Employee Participation Plan | Additional Paid-in Capital | Accumulated Other Comprehensive loss | Accumulated Earnings
--- | --- | --- | --- | --- | --- | ---
Beginning balance at Dec. 31, 2015 | $ 1,096,282 | $ 576 | $ (469) | $ 738,401 | $ (254,892) | $ 612,666
Beginning balance (in shares) at Dec. 31, 2015 |  | 57,593 |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Net income (loss) | (39,873) |  |  |  |  | (39,873)
Other comprehensive income | 40,566 |  |  |  | 40,566 |
Stock-based compensation | 10,481 |  |  | 10,481 |  |
Issuance of restricted shares, net of shares remitted | (2,819) | $ 1 |  | (2,820) |  |
Issuance of restricted shares, net of shares remitted (in shares) |  | 136 |  |  |  |
Exercise of stock options | 627 |  |  | 627 |  |
Exercise of stock options (in shares) |  | 22 |  |  |  |
Repurchases of common stock | (22,188) | $ (4) |  | (22,184) |  |
Repurchases of common stock (in shares) |  | (453) |  |  |  |
Net tax benefit on stock-based awards | 1,165 |  |  | 1,165 |  |
Ending balance at Dec. 31, 2016 | 1,084,241 | $ 573 | (469) | 725,670 | (214,326) | 572,793
Ending balance (in shares) at Dec. 31, 2016 |  | 57,298 |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Net income (loss) | 100,739 |  |  |  |  | 100,739
Other comprehensive income | 41,919 |  |  |  | 41,919 |
Stock-based compensation | 13,146 |  |  | 13,146 |  |
Issuance of restricted shares, net of shares remitted | (3,149) | $ 1 |  | (3,150) |  |
Issuance of restricted shares, net of shares remitted (in shares) |  | 133 |  |  |  |
Exercise of stock options | 46 |  |  | 46 |  |
Exercise of stock options (in shares) |  | 2 |  |  |  |
Shares held under employee participation plan | 0 |  | 469 | (469) |  |
Shares held under employee participation plan (in shares) |  | (25) |  |  |  |
Repurchases of common stock | (48,971) | $ (9) |  | (48,962) |  |
Repurchases of common stock (in shares) |  | (907) |  |  |  |
Ending balance at Dec. 31, 2017 | 1,188,202 | $ 565 | 0 | 686,962 | (172,407) | 673,082
Ending balance (in shares) at Dec. 31, 2017 |  | 56,501 |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Cumulative effect of change in accounting principle | 231 |  |  | 681 |  | (450)
Net income (loss) | 65,636 |  |  |  |  | 65,636
Other comprehensive income | (50,964) |  |  |  | (50,964) |
Stock-based compensation | 16,792 |  |  | 16,792 |  |
Issuance of restricted shares, net of shares remitted | (3,266) | $ 1 |  | (3,267) |  |
Issuance of restricted shares, net of shares remitted (in shares) |  | 160 |  |  |  |
Repurchases of common stock | (45,080) | $ (8) |  | (45,072) |  |
Repurchases of common stock (in shares) |  | (814) |  |  |  |
Ending balance at Dec. 31, 2018 | 1,169,756 | $ 558 | $ 0 | $ 655,415 | $ (223,371) | 737,154
Ending balance (in shares) at Dec. 31, 2018 |  | 55,847 |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Cumulative effect of change in accounting principle | $ (1,564) |  |  |  |  | $ (1,564)

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