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v3.20.2

Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands | Total | Common Stock [Member] | Additional Paid-In Capital [Member] | Retained Earnings (Deficit) [Member] | Treasury Stock [Member]
--- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2018 | $ 342,963 | $ 1,400 | $ 123,524 | $ 416,942 | $ (198,903)
Beginning Balance, Shares at Dec. 31, 2018 |  | 117,103,306 |  |  | 22,893,366
Net income | 31,555 |  |  | 31,555 |
Employee stock plans | 302 |  | 302 |  |
Employee stock plans, Shares |  | 48,944 |  |  |
Shares withheld for taxes on awards | (5,727) |  | (5,727) |  |
Shares withheld for taxes on awards, Shares |  | (148,020) |  |  |
Stock-based compensation | 2,794 | $ 1 | 2,793 |  |
Stock-based compensation, Shares |  | 320,718 |  |  |
Repurchases of common stock | (8,730) |  |  |  | $ (8,730)
Repurchases of common stock, Shares |  | (249,978) |  |  | 249,978
Ending Balance at Mar. 31, 2019 | 363,157 | $ 1,401 | 120,892 | 448,497 | $ (207,633)
Ending Balance, Shares at Mar. 31, 2019 |  | 117,074,970 |  |  | 23,143,344
Beginning Balance at Dec. 31, 2018 | 342,963 | $ 1,400 | 123,524 | 416,942 | $ (198,903)
Beginning Balance, Shares at Dec. 31, 2018 |  | 117,103,306 |  |  | 22,893,366
Net income | 109,241 |  |  |  |
Ending Balance at Sep. 30, 2019 | 423,550 | $ 1,402 | 122,141 | 526,183 | $ (226,176)
Ending Balance, Shares at Sep. 30, 2019 |  | 116,707,946 |  |  | 23,643,606
Beginning Balance at Mar. 31, 2019 | 363,157 | $ 1,401 | 120,892 | 448,497 | $ (207,633)
Beginning Balance, Shares at Mar. 31, 2019 |  | 117,074,970 |  |  | 23,143,344
Net income | 35,710 |  |  | 35,710 |
Employee stock plans | 257 |  | 257 |  |
Employee stock plans, Shares |  | 29,810 |  |  |
Shares withheld for taxes on awards | (1,254) |  | (1,254) |  |
Shares withheld for taxes on awards, Shares |  | (38,348) |  |  |
Stock-based compensation | 2,125 |  | 2,125 |  |
Stock-based compensation, Shares |  | 64,278 |  |  |
Repurchases of common stock | (8,462) |  |  |  | $ (8,462)
Repurchases of common stock, Shares |  | (250,302) |  |  | 250,302
Ending Balance at Jun. 30, 2019 | 391,533 | $ 1,401 | 122,020 | 484,207 | $ (216,095)
Ending Balance, Shares at Jun. 30, 2019 |  | 116,880,408 |  |  | 23,393,646
Net income | 41,976 |  |  | 41,976 |
Employee stock plans | 159 | $ 1 | 158 |  |
Employee stock plans, Shares |  | 52,324 |  |  |
Shares withheld for taxes on awards | (963) |  | (963) |  |
Shares withheld for taxes on awards, Shares |  | (9,444) |  |  |
Stock-based compensation | 926 |  | 926 |  |
Stock-based compensation, Shares |  | 34,618 |  |  |
Repurchases of common stock | (10,081) |  |  |  | $ (10,081)
Repurchases of common stock, Shares |  | (249,960) |  |  | 249,960
Ending Balance at Sep. 30, 2019 | 423,550 | $ 1,402 | 122,141 | 526,183 | $ (226,176)
Ending Balance, Shares at Sep. 30, 2019 |  | 116,707,946 |  |  | 23,643,606
Beginning Balance at Dec. 31, 2019 | 449,175 | $ 1,404 | 123,294 | 561,680 | $ (237,203)
Beginning Balance, Shares at Dec. 31, 2019 |  | 116,481,442 |  |  | 23,893,484
Net income | 42,402 |  |  | 42,402 |
Employee stock plans | 299 |  | 299 |  |
Employee stock plans, Shares |  | 32,772 |  |  |
Shares withheld for taxes on awards | (3,856) |  | (3,856) |  |
Shares withheld for taxes on awards, Shares |  | (76,284) |  |  |
Stock-based compensation | 2,775 |  | 2,775 |  |
Stock-based compensation, Shares |  | 152,408 |  |  |
Repurchases of common stock | (39,072) |  |  |  | $ (39,072)
Repurchases of common stock, Shares |  | (884,018) |  |  | 884,018
Ending Balance at Mar. 31, 2020 | 451,723 | $ 1,404 | 122,512 | 604,082 | $ (276,275)
Ending Balance, Shares at Mar. 31, 2020 |  | 115,706,320 |  |  | 24,777,502
Beginning Balance at Dec. 31, 2019 | 449,175 | $ 1,404 | 123,294 | 561,680 | $ (237,203)
Beginning Balance, Shares at Dec. 31, 2019 |  | 116,481,442 |  |  | 23,893,484
Net income | 132,331 |  |  |  |
Ending Balance at Sep. 30, 2020 | 544,064 | $ 1,406 | 124,923 | 694,010 | $ (276,275)
Ending Balance, Shares at Sep. 30, 2020 |  | 115,785,673 |  |  | 24,777,502
Beginning Balance at Mar. 31, 2020 | 451,723 | $ 1,404 | 122,512 | 604,082 | $ (276,275)
Beginning Balance, Shares at Mar. 31, 2020 |  | 115,706,320 |  |  | 24,777,502
Net income | 47,218 |  |  | 47,218 |
Employee stock plans | 391 |  | 391 |  |
Employee stock plans, Shares |  | 16,412 |  |  |
Shares withheld for taxes on awards | (1,199) |  | (1,199) |  |
Shares withheld for taxes on awards, Shares |  | (24,786) |  |  |
Stock-based compensation | 1,528 | $ 1 | 1,527 |  |
Stock-based compensation, Shares |  | 58,060 |  |  |
Ending Balance at Jun. 30, 2020 | 499,661 | $ 1,405 | 123,231 | 651,300 | $ (276,275)
Ending Balance, Shares at Jun. 30, 2020 |  | 115,756,006 |  |  | 24,777,502
Net income | 42,710 |  |  | 42,710 |
Employee stock plans | 390 |  | 390 |  |
Employee stock plans, Shares |  | 6,559 |  |  |
Shares withheld for taxes on awards | (313) |  | (313) |  |
Shares withheld for taxes on awards, Shares |  | (4,486) |  |  |
Stock-based compensation | 1,616 | $ 1 | 1,615 |  |
Stock-based compensation, Shares |  | 27,594 |  |  |
Ending Balance at Sep. 30, 2020 | $ 544,064 | $ 1,406 | $ 124,923 | $ 694,010 | $ (276,275)
Ending Balance, Shares at Sep. 30, 2020 |  | 115,785,673 |  |  | 24,777,502

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