CONSOLIDATED STATEMENT OF CHANGES IN EQUITY - USD ($) shares in Thousands, $ in Thousands | Total | Accumulated Deficit | AOCI Attributable to Parent | Common Stock | Additional Paid-in Capital | Treasury Stock |
Balance at Dec. 31, 2017 | $ 81,796 | $ (715,476) | $ (113) | $ 2,157 | $ 812,536 | $ (17,308) |
Balance (in shares) at Dec. 31, 2017 | | | | 21,573 | | |
Balance (in shares) at Dec. 31, 2017 | | | | | | 999 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | |
Net income | (6,170) | (6,170) | | | | |
Issuance of and restricted stock withheld for taxes | (150) | | | | (17) | $ (133) |
Issuance of restricted stock, net of tax withholdings (in shares) | | | | | | 13 |
Stock-based compensation expense | 277 | | | | 277 | |
Other comprehensive loss | 82 | | 82 | | | |
Balance at Mar. 31, 2018 | 75,835 | (721,646) | (31) | $ 2,157 | 812,796 | $ (17,441) |
Balance (in shares) at Mar. 31, 2018 | | | | 21,573 | | |
Balance (in shares) at Mar. 31, 2018 | | | | | | 1,012 |
Balance at Dec. 31, 2017 | 81,796 | (715,476) | (113) | $ 2,157 | 812,536 | $ (17,308) |
Balance (in shares) at Dec. 31, 2017 | | | | 21,573 | | |
Balance (in shares) at Dec. 31, 2017 | | | | | | 999 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | |
Net income | 994 | | | | | |
Balance at Sep. 30, 2018 | 83,509 | (714,482) | (13) | $ 2,157 | 811,131 | $ (15,284) |
Balance (in shares) at Sep. 30, 2018 | | | | 21,573 | | |
Balance (in shares) at Sep. 30, 2018 | | | | | | 926 |
Balance at Mar. 31, 2018 | 75,835 | (721,646) | (31) | $ 2,157 | 812,796 | $ (17,441) |
Balance (in shares) at Mar. 31, 2018 | | | | 21,573 | | |
Balance (in shares) at Mar. 31, 2018 | | | | | | 1,012 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | |
Net income | (24,896) | (24,896) | | | | |
Issuance of and restricted stock withheld for taxes | (50) | | | | (2,024) | $ 1,974 |
Issuance of restricted stock, net of tax withholdings (in shares) | | | | | | 88 |
Stock options exercised, net of tax withholdings | 0 | | | | (16) | $ 16 |
Stock options exercised, net of tax withholdings (in shares) | | | | | | (1) |
Stock-based compensation expense | 333 | | | | 333 | |
Other comprehensive loss | (1) | | (1) | | | |
Balance at Jun. 30, 2018 | 51,221 | (746,542) | (32) | $ 2,157 | 811,089 | $ (15,451) |
Balance (in shares) at Jun. 30, 2018 | | | | 21,573 | | |
Balance (in shares) at Jun. 30, 2018 | | | | | | 923 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | |
Net income | 32,060 | 32,060 | | | | |
Issuance of and restricted stock withheld for taxes | (34) | | | | (201) | $ 167 |
Issuance of restricted stock, net of tax withholdings (in shares) | | | | | | 3 |
Stock-based compensation expense | 243 | | | | 243 | |
Other comprehensive loss | 19 | | 19 | | | |
Balance at Sep. 30, 2018 | 83,509 | (714,482) | (13) | $ 2,157 | 811,131 | $ (15,284) |
Balance (in shares) at Sep. 30, 2018 | | | | 21,573 | | |
Balance (in shares) at Sep. 30, 2018 | | | | | | 926 |
Balance at Dec. 31, 2018 | 66,979 | (731,105) | 0 | $ 2,157 | 810,928 | $ (15,001) |
Balance (in shares) at Dec. 31, 2018 | | | | 21,573 | | |
Balance (in shares) at Dec. 31, 2018 | | | | | | 914 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | |
Net income | 21,663 | 21,663 | | | | |
Stock options exercised, net of tax withholdings | 0 | | | | | |
Stock options exercised, net of tax withholdings (in shares) | | | | | | (1) |
Cancellations of and restricted stock withheld for taxes | (149) | | | | 7 | $ (156) |
Cancellations of and restricted stock withheld for taxes (in shares) | | | | | | 83 |
Stock-based compensation expense | 417 | | | | 417 | |
Other comprehensive loss | (31) | | (31) | | | |
Balance at Mar. 31, 2019 | 88,879 | (709,442) | (31) | $ 2,157 | 811,352 | $ (15,157) |
Balance (in shares) at Mar. 31, 2019 | | | | 21,573 | | |
Balance (in shares) at Mar. 31, 2019 | | | | | | 998 |
Balance at Dec. 31, 2018 | 66,979 | (731,105) | 0 | $ 2,157 | 810,928 | $ (15,001) |
Balance (in shares) at Dec. 31, 2018 | | | | 21,573 | | |
Balance (in shares) at Dec. 31, 2018 | | | | | | 914 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | |
Net income | 55,259 | | | | | |
Balance at Sep. 30, 2019 | 122,937 | (675,846) | (25) | $ 2,157 | 810,649 | $ (13,998) |
Balance (in shares) at Sep. 30, 2019 | | | | 21,573 | | |
Balance (in shares) at Sep. 30, 2019 | | | | | | 928 |
Balance at Mar. 31, 2019 | 88,879 | (709,442) | (31) | $ 2,157 | 811,352 | $ (15,157) |
Balance (in shares) at Mar. 31, 2019 | | | | 21,573 | | |
Balance (in shares) at Mar. 31, 2019 | | | | | | 998 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | |
Net income | 36,093 | 36,093 | | | | |
Issuance of and restricted stock withheld for taxes | (31) | | | | (1,220) | $ 1,189 |
Issuance of restricted stock, net of tax withholdings (in shares) | | | | | | 77 |
Stock-based compensation expense | 269 | | | | 269 | |
Other comprehensive loss | 6 | | 6 | | | |
Balance at Jun. 30, 2019 | 125,216 | (673,349) | (25) | $ 2,157 | 810,401 | $ (13,968) |
Balance (in shares) at Jun. 30, 2019 | | | | 21,573 | | |
Balance (in shares) at Jun. 30, 2019 | | | | | | 921 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | |
Net income | (2,497) | (2,497) | | | | |
Issuance of and restricted stock withheld for taxes | (30) | | | | | $ (30) |
Issuance of restricted stock, net of tax withholdings (in shares) | | | | | | 7 |
Stock-based compensation expense | 248 | | | | 248 | |
Other comprehensive loss | 0 | | 0 | | | |
Balance at Sep. 30, 2019 | $ 122,937 | $ (675,846) | $ (25) | $ 2,157 | $ 810,649 | $ (13,998) |
Balance (in shares) at Sep. 30, 2019 | | | | 21,573 | | |
Balance (in shares) at Sep. 30, 2019 | | | | | | 928 |