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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands | Total | Common stock | Paid-in capital | Treasury stock | Accumulated other comprehensive loss | Retained earnings | ASU 2016-09 Paid-in capital | ASU 2016-09 Retained earnings | ASU 2016-01 Accumulated other comprehensive loss | ASU 2016-01 Retained earnings
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |
Cumulative effect of accounting standard update |  |  |  |  |  |  | $ 49 | $ 153 |  |
Balance, beginning of year at Dec. 31, 2016 |  | $ 359,400 | $ 1,782,337 | $ (150,359) | $ (75,100) | $ 632,564 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |
Issuance of common stock |  | 10,386 | 60,903 |  |  |  |  |  |  |
Net common stock issued under share-based compensation plans |  | 781 | (7,602) |  |  |  |  |  |  |
Equity compensation |  |  | 14,895 |  |  |  |  |  |  |
Purchases of common stock |  |  |  | 0 |  |  |  |  |  |
Reissuance of treasury stock, net |  |  |  | 150,359 |  | (21,740) |  |  |  |
Other comprehensive income (loss) | $ 41,739 |  |  |  | 41,739 |  |  |  |  |
Net income | 355,761 |  |  |  |  | 355,761 |  |  |  |
Cumulative effect to reclassify certain tax effects from accumulated other comprehensive loss | (10,422) |  |  |  | (10,422) | 10,422 |  |  |  |
Balance, end of year at Dec. 31, 2017 | 3,154,526 | 370,567 | 1,850,582 | 0 | (43,783) | 977,160 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |
Cumulative effect of accounting standard update |  |  |  |  | (18) |  |  |  | $ (18) | $ 18
Net common stock issued under share-based compensation plans |  | 786 | (8,917) |  |  |  |  |  |  |
Equity compensation |  |  | 20,871 |  |  |  |  |  |  |
Purchases of common stock |  |  |  | (175,059) |  |  |  |  |  |
Other comprehensive income (loss) | (80,413) |  |  |  | (80,413) |  |  |  |  |
Net income | 670,097 |  |  |  |  | 670,097 |  |  |  |
Balance, end of year at Dec. 31, 2018 | 3,581,891 | 371,353 | 1,862,536 | (175,059) | (124,214) | 1,647,275 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |
Reissuance of treasury stock, net under share-based compensation plans |  |  | (11,715) | 5,989 |  |  |  |  |  |
Equity compensation |  |  | 18,898 |  |  |  |  |  |  |
Purchases of common stock |  |  |  | (114,126) |  |  |  |  |  |
Other comprehensive income (loss) | 196,922 |  |  |  | 196,922 |  |  |  |  |
Net income | 673,763 |  |  |  |  | 673,763 |  |  |  |
Cash dividends |  |  |  |  |  | (42,388) |  |  |  |
Balance, end of year at Dec. 31, 2019 | $ 4,309,234 | $ 371,353 | $ 1,869,719 | $ (283,196) | $ 72,708 | $ 2,278,650 |  |  |  |

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