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v3.19.2

Condensed Consolidated Statement Of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands | Common Stock [Member] | Additional Paid-In Capital [Member] | Treasury Stock [Member] | Retained Earnings [Member] | Available-for-sale-securities [Member] | Foreign Currency Translation [Member] | Total
--- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2017 | $ 359 | $ 1,305,090 | $ (2,334,409) | $ 2,397,064 | $ (306) | $ (3,353) | $ 1,364,445
Balance, Shares at Dec. 31, 2017 | 35,852 |  | 7,826 |  |  |  |
Stock-based compensation | $ 0 | 12,376 | $ 0 | 0 | 0 | 0 | 12,376
Stock-based compensation, Shares | 0 |  | 0 |  |  |  |
Stock plan transactions and other | $ 0 | (228) | $ 0 | 0 | 0 | 0 | (228)
Stock plan transactions and other, Shares | 31 |  | 0 |  |  |  |
Acquisition of treasury stock (value) | $ 0 | 0 | $ (72,025) | 0 | 0 | 0 | (72,025)
Acquisition of treasury stock (shares) | 0 |  | 231 |  |  |  |
Net income | $ 0 | 0 | $ 0 | 59,446 | 0 | 0 | 59,446
Other comprehensive income (loss), net of income tax | 0 | 0 | 0 | 0 | (101) | 132 | 31
Balance at Mar. 31, 2018 | $ 359 | 1,317,238 | $ (2,406,434) | 2,456,510 | (407) | (3,221) | 1,364,045
Balance, Shares at Mar. 31, 2018 | 35,883 |  | 8,057 |  |  |  |
Balance at Dec. 31, 2017 | $ 359 | 1,305,090 | $ (2,334,409) | 2,397,064 | (306) | (3,353) | 1,364,445
Balance, Shares at Dec. 31, 2017 | 35,852 |  | 7,826 |  |  |  |
Net income |  |  |  |  |  |  | 106,330
Other comprehensive income (loss), net of income tax |  |  |  |  |  |  | (1,467)
Balance at Jun. 30, 2018 | $ 359 | 1,328,489 | $ (2,435,109) | 2,503,394 | (325) | (4,801) | 1,392,007
Balance, Shares at Jun. 30, 2018 | 35,945 |  | 8,133 |  |  |  |
Balance at Mar. 31, 2018 | $ 359 | 1,317,238 | $ (2,406,434) | 2,456,510 | (407) | (3,221) | 1,364,045
Balance, Shares at Mar. 31, 2018 | 35,883 |  | 8,057 |  |  |  |
Stock-based compensation | $ 0 | 11,660 | $ 0 | 0 | 0 | 0 | 11,660
Stock-based compensation, Shares | 0 |  | 0 |  |  |  |
Stock plan transactions and other | $ 0 | (409) | $ 0 | 0 | 0 | 0 | (409)
Stock plan transactions and other, Shares | 62 |  | 0 |  |  |  |
Acquisition of treasury stock (value) | $ 0 | 0 | $ (28,675) | 0 | 0 | 0 | (28,675)
Acquisition of treasury stock (shares) | 0 |  | 76 |  |  |  |
Net income | $ 0 | 0 | $ 0 | 46,884 | 0 | 0 | 46,884
Other comprehensive income (loss), net of income tax | 0 | 0 | 0 | 0 | 82 | (1,580) | (1,498)
Balance at Jun. 30, 2018 | $ 359 | 1,328,489 | $ (2,435,109) | 2,503,394 | (325) | (4,801) | 1,392,007
Balance, Shares at Jun. 30, 2018 | 35,945 |  | 8,133 |  |  |  |
Balance at Dec. 31, 2018 | $ 360 | 1,374,154 | $ (2,500,556) | 2,573,617 | (147) | (6,089) | 1,441,339
Balance, Shares at Dec. 31, 2018 | 35,973 |  | 8,276 |  |  |  |
Stock-based compensation | $ 0 | 19,342 | $ 0 | 0 | 0 | 0 | 19,342
Stock-based compensation, Shares | 0 |  | 0 |  |  |  |
Stock plan transactions and other | $ 1 | (212) | $ 0 | 0 | 0 | 0 | (211)
Stock plan transactions and other, Shares | 135 |  | 0 |  |  |  |
Acquisition of treasury stock (value) | $ 0 | 0 | $ (62,854) | 0 | 0 | 0 | (62,854)
Acquisition of treasury stock (shares) | 0 |  | 110 |  |  |  |
Net income | $ 0 | 0 | $ 0 | 88,132 | 0 | 0 | 88,132
Other comprehensive income (loss), net of income tax | 0 | 0 | 0 | 0 | 100 | 278 | 378
Balance at Mar. 31, 2019 | $ 361 | 1,393,284 | $ (2,563,410) | 2,659,422 | (47) | (5,811) | 1,483,799
Balance, Shares at Mar. 31, 2019 | 36,108 |  | 8,386 |  |  |  |
Balance at Dec. 31, 2018 | $ 360 | 1,374,154 | $ (2,500,556) | 2,573,617 | (147) | (6,089) | 1,441,339
Balance, Shares at Dec. 31, 2018 | 35,973 |  | 8,276 |  |  |  |
Net income |  |  |  |  |  |  | 179,160
Other comprehensive income (loss), net of income tax |  |  |  |  |  |  | 975
Balance at Jun. 30, 2019 | $ 362 | 1,414,420 | $ (2,621,922) | 2,750,450 | (5) | (5,256) | 1,538,049
Balance, Shares at Jun. 30, 2019 | 36,193 |  | 8,469 |  |  |  |
Adoption of ASU No. 2016-02, Leases (Topic 842) | $ 0 | 0 | $ 0 | (2,327) | 0 | 0 | (2,327)
Balance at Mar. 31, 2019 | $ 361 | 1,393,284 | $ (2,563,410) | 2,659,422 | (47) | (5,811) | 1,483,799
Balance, Shares at Mar. 31, 2019 | 36,108 |  | 8,386 |  |  |  |
Stock-based compensation | $ 0 | 21,322 | $ 0 | 0 | 0 | 0 | 21,322
Stock-based compensation, Shares | 0 |  | 0 |  |  |  |
Stock plan transactions and other | $ 1 | (186) | $ 0 | 0 | 0 | 0 | (185)
Stock plan transactions and other, Shares | 85 |  | 0 |  |  |  |
Acquisition of treasury stock (value) | $ 0 | 0 | $ (58,512) | 0 | 0 | 0 | (58,512)
Acquisition of treasury stock (shares) | 0 |  | 83 |  |  |  |
Net income | $ 0 | 0 | $ 0 | 91,028 | 0 | 0 | 91,028
Other comprehensive income (loss), net of income tax | 0 | 0 | 0 | 0 | 42 | 555 | 597
Balance at Jun. 30, 2019 | $ 362 | $ 1,414,420 | $ (2,621,922) | $ 2,750,450 | $ (5) | $ (5,256) | $ 1,538,049
Balance, Shares at Jun. 30, 2019 | 36,193 |  | 8,469 |  |  |  |

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