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v3.19.3

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, 2017 | $ 231,250 | $ 698 | $ 121,694 | $ 282,370 | $ (173,512)
Beginning Balance, Shares at Dec. 31, 2017 |  | 58,856,860 |  |  | 10,987,362
Net income | 37,110 |  |  | 37,110 |
Employee stock plans | 195 |  | 195 |  |
Employee stock plans, Shares |  | 26,832 |  |  |
Shares withheld for taxes on awards | (3,782) |  | (3,782) |  |
Shares withheld for taxes on awards, Shares |  | (13,028) |  |  |
Stock-based compensation | 2,296 | $ 1 | 2,295 |  |
Stock-based compensation, Shares |  | 80,988 |  |  |
Repurchases of common stock | (5,211) |  |  |  | $ (5,211)
Repurchases of common stock, Shares |  | (100,044) |  |  | 100,044
Ending Balance at Mar. 31, 2018 | 261,858 | $ 699 | 120,402 | 319,480 | $ (178,723)
Ending Balance, Shares at Mar. 31, 2018 |  | 58,851,608 |  |  | 11,087,406
Beginning Balance at Dec. 31, 2017 | 231,250 | $ 698 | 121,694 | 282,370 | $ (173,512)
Beginning Balance, Shares at Dec. 31, 2017 |  | 58,856,860 |  |  | 10,987,362
Net income | 109,401 |  |  |  |
Ending Balance at Sep. 30, 2018 | 328,655 | $ 700 | 122,725 | 391,771 | $ (186,541)
Ending Balance, Shares at Sep. 30, 2018 |  | 58,754,048 |  |  | 11,237,406
Beginning Balance at Mar. 31, 2018 | 261,858 | $ 699 | 120,402 | 319,480 | $ (178,723)
Beginning Balance, Shares at Mar. 31, 2018 |  | 58,851,608 |  |  | 11,087,406
Net income | 42,820 |  |  | 42,820 |
Employee stock plans | 210 | $ 1 | 209 |  |
Employee stock plans, Shares |  | 22,549 |  |  |
Shares withheld for taxes on awards | (420) |  | (420) |  |
Shares withheld for taxes on awards, Shares |  | (7,493) |  |  |
Stock-based compensation | 1,350 | $ 0 | 1,350 |  |
Stock-based compensation, Shares |  | 9,735 |  |  |
Repurchases of common stock | (7,818) |  |  |  | $ (7,818)
Repurchases of common stock, Shares |  | (150,000) |  |  | 150,000
Ending Balance at Jun. 30, 2018 | 298,000 | $ 700 | 121,541 | 362,300 | $ (186,541)
Ending Balance, Shares at Jun. 30, 2018 |  | 58,726,399 |  |  | 11,237,406
Net income | 29,471 |  |  | 29,471 |
Employee stock plans | 238 | $ 0 | 238 |  |
Employee stock plans, Shares |  | 7,377 |  |  |
Shares withheld for taxes on awards | (493) |  | (493) |  |
Shares withheld for taxes on awards, Shares |  | (6,272) |  |  |
Stock-based compensation | 1,439 | $ 0 | 1,439 |  |
Stock-based compensation, Shares |  | 26,544 |  |  |
Ending Balance at Sep. 30, 2018 | 328,655 | $ 700 | 122,725 | 391,771 | $ (186,541)
Ending Balance, Shares at Sep. 30, 2018 |  | 58,754,048 |  |  | 11,237,406
Beginning Balance at Dec. 31, 2018 | 342,963 | $ 700 | 124,224 | 416,942 | $ (198,903)
Beginning Balance, Shares at Dec. 31, 2018 |  | 58,551,653 |  |  | 11,446,683
Net income | 31,555 |  |  | 31,555 |
Employee stock plans | 302 |  | 302 |  |
Employee stock plans, Shares |  | 24,472 |  |  |
Shares withheld for taxes on awards | (5,727) |  | (5,727) |  |
Shares withheld for taxes on awards, Shares |  | (74,010) |  |  |
Stock-based compensation | 2,794 | $ 1 | 2,793 |  |
Stock-based compensation, Shares |  | 160,359 |  |  |
Repurchases of common stock | (8,730) |  |  |  | $ (8,730)
Repurchases of common stock, Shares |  | (124,989) |  |  | 124,989
Ending Balance at Mar. 31, 2019 | 363,157 | $ 701 | 121,592 | 448,497 | $ (207,633)
Ending Balance, Shares at Mar. 31, 2019 |  | 58,537,485 |  |  | 11,571,672
Beginning Balance at Dec. 31, 2018 | 342,963 | $ 700 | 124,224 | 416,942 | $ (198,903)
Beginning Balance, Shares at Dec. 31, 2018 |  | 58,551,653 |  |  | 11,446,683
Net income | 109,241 |  |  |  |
Ending Balance at Sep. 30, 2019 | 423,550 | $ 702 | 122,841 | 526,183 | $ (226,176)
Ending Balance, Shares at Sep. 30, 2019 |  | 58,353,973 |  |  | 11,821,803
Beginning Balance at Mar. 31, 2019 | 363,157 | $ 701 | 121,592 | 448,497 | $ (207,633)
Beginning Balance, Shares at Mar. 31, 2019 |  | 58,537,485 |  |  | 11,571,672
Net income | 35,710 |  |  | 35,710 |
Employee stock plans | 257 |  | 257 |  |
Employee stock plans, Shares |  | 14,905 |  |  |
Shares withheld for taxes on awards | (1,254) |  | (1,254) |  |
Shares withheld for taxes on awards, Shares |  | (19,174) |  |  |
Stock-based compensation | 2,125 | $ 0 | 2,125 |  |
Stock-based compensation, Shares |  | 32,139 |  |  |
Repurchases of common stock | (8,462) |  |  |  | $ (8,462)
Repurchases of common stock, Shares |  | (125,151) |  |  | 125,151
Ending Balance at Jun. 30, 2019 | 391,533 | $ 701 | 122,720 | 484,207 | $ (216,095)
Ending Balance, Shares at Jun. 30, 2019 |  | 58,440,204 |  |  | 11,696,823
Net income | 41,976 |  |  | 41,976 |
Employee stock plans | 159 | $ 1 | 158 |  |
Employee stock plans, Shares |  | 26,162 |  |  |
Shares withheld for taxes on awards | (963) |  | (963) |  |
Shares withheld for taxes on awards, Shares |  | (4,722) |  |  |
Stock-based compensation | 926 | $ 0 | 926 |  |
Stock-based compensation, Shares |  | 17,309 |  |  |
Repurchases of common stock | (10,081) |  |  |  | $ (10,081)
Repurchases of common stock, Shares |  | (124,980) |  |  | 124,980
Ending Balance at Sep. 30, 2019 | $ 423,550 | $ 702 | $ 122,841 | $ 526,183 | $ (226,176)
Ending Balance, Shares at Sep. 30, 2019 |  | 58,353,973 |  |  | 11,821,803

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