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v3.20.2

Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands | Total | Revision Of Prior Period Accounting Standards Update Adjustment [Member] | Common Stock [Member] | Treasury Stock [Member] | Additional Paid-in Capital [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Retained Earnings (Accumulated Deficit) [Member] | Retained Earnings (Accumulated Deficit) [Member] Revision Of Prior Period Accounting Standards Update Adjustment [Member]
--- | --- | --- | --- | --- | --- | --- | --- | ---
BALANCE at Dec. 31, 2018 | $ 355,203 | $ 1,035 | $ 852 | $ (220,700) | $ 628,295 | $ (298) | $ (52,946) | $ 1,035
BALANCE, shares at Dec. 31, 2018 |  |  | 85,174,000 |  |  |  |  |
BALANCE, shares at Dec. 31, 2018 |  |  |  | (15,401,000) |  |  |  |
Net income (loss) | 42,466 |  |  |  |  |  | 42,466 |
Foreign currency translation | (130) |  |  |  |  | (130) |  |
Unrealized gain (loss) on investments | 814 |  |  |  |  | 814 |  |
Share-based compensation expense | 3,922 |  |  |  | 3,922 |  |  |
Common stock issued | (1,366) |  | $ 7 | $ (2,692) | 1,319 |  |  |
Common stock issued, shares |  |  | 703,000 | (163,000) |  |  |  |
BALANCE at Sep. 30, 2019 | 401,944 |  | $ 859 | $ (223,392) | 633,536 | 386 | (9,445) |
BALANCE, shares at Sep. 30, 2019 |  |  | 85,877,000 |  |  |  |  |
BALANCE, shares at Sep. 30, 2019 |  |  |  | (15,564,000) |  |  |  |
BALANCE at Jun. 30, 2019 | 381,248 |  | $ 857 | $ (223,263) | 630,878 | 455 | (27,679) |
BALANCE, shares at Jun. 30, 2019 |  |  | 85,668,000 |  |  |  |  |
BALANCE, shares at Jun. 30, 2019 |  |  |  | (15,558,000) |  |  |  |
Net income (loss) | 18,234 |  |  |  |  |  | 18,234 |
Foreign currency translation | (113) |  |  |  |  | (113) |  |
Unrealized gain (loss) on investments | 44 |  |  |  |  | 44 |  |
Share-based compensation expense | 1,516 |  |  |  | 1,516 |  |  |
Common stock issued | 1,015 |  | $ 2 | $ (129) | 1,142 |  |  |
Common stock issued, shares |  |  | 209,000 | (6,000) |  |  |  |
BALANCE at Sep. 30, 2019 | 401,944 |  | $ 859 | $ (223,392) | 633,536 | 386 | (9,445) |
BALANCE, shares at Sep. 30, 2019 |  |  | 85,877,000 |  |  |  |  |
BALANCE, shares at Sep. 30, 2019 |  |  |  | (15,564,000) |  |  |  |
BALANCE at Dec. 31, 2019 | $ 431,295 |  | $ 860 | $ (227,315) | 639,335 | 344 | 18,071 |
BALANCE, shares at Dec. 31, 2019 | 85,953,253 |  | 85,953,000 |  |  |  |  |
BALANCE, shares at Dec. 31, 2019 | (15,801,896) |  |  | (15,802,000) |  |  |  |
Net income (loss) | $ 97,213 |  |  |  |  |  | 97,213 |
Foreign currency translation | 128 |  |  |  |  | 128 |  |
Unrealized gain (loss) on investments | 131 |  |  |  |  | 131 |  |
Treasury stock purchased | (17,862) |  |  | $ (17,862) |  |  |  |
Treasury stock purchased, shares |  |  |  | (1,320,000) |  |  |  |
Share-based compensation expense | 9,735 |  |  |  | 9,735 |  |  |
Common stock issued | 1,031 |  | $ 5 | $ (894) | 1,920 |  |  |
Common stock issued, shares |  |  | 535,000 | (79,000) |  |  |  |
BALANCE at Sep. 30, 2020 | $ 521,671 |  | $ 865 | $ (246,071) | 650,990 | 603 | 115,284 |
BALANCE, shares at Sep. 30, 2020 | 86,488,095 |  | 86,488,000 |  |  |  |  |
BALANCE, shares at Sep. 30, 2020 | (17,201,136) |  |  | (17,201,000) |  |  |  |
BALANCE at Jun. 30, 2020 | $ 478,684 |  | $ 863 | $ (245,313) | 646,849 | 941 | 75,344 |
BALANCE, shares at Jun. 30, 2020 |  |  | 86,279,000 |  |  |  |  |
BALANCE, shares at Jun. 30, 2020 |  |  |  | (17,148,000) |  |  |  |
Net income (loss) | 39,940 |  |  |  |  |  | 39,940 |
Foreign currency translation | 123 |  |  |  |  | 123 |  |
Unrealized gain (loss) on investments | (461) |  |  |  |  | (461) |  |
Treasury stock purchased | (553) |  |  | $ (553) |  |  |  |
Treasury stock purchased, shares |  |  |  | (36,000) |  |  |  |
Share-based compensation expense | 3,232 |  |  |  | 3,232 |  |  |
Common stock issued | 706 |  | $ 2 | $ (205) | 909 |  |  |
Common stock issued, shares |  |  | 209,000 | (17,000) |  |  |  |
BALANCE at Sep. 30, 2020 | $ 521,671 |  | $ 865 | $ (246,071) | $ 650,990 | $ 603 | $ 115,284 |
BALANCE, shares at Sep. 30, 2020 | 86,488,095 |  | 86,488,000 |  |  |  |  |
BALANCE, shares at Sep. 30, 2020 | (17,201,136) |  |  | (17,201,000) |  |  |  |

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