CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands | Total | Common StockClass A Common | Common StockClass B Common | Treasury Stock | Additional Paid-in Capital | Retained Earnings | Accumulated Other Comprehensive (Loss) Income |
Beginning balance (in shares) at Dec. 31, 2017 | | 77,588,018 | 80,957,495 | (14,620,175) | | | |
Beginning balance at Dec. 31, 2017 | $ 642,772 | $ 0 | $ 1 | $ (199,817) | $ 534,159 | $ 308,905 | $ (476) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | |
Stock-based compensation expense | 3,723 | | | | 3,723 | | |
Exercise of stock options (in shares) | | 211,002 | | | | | |
Exercise of stock options | 1,450 | | | | 1,450 | | |
Conversion Class B to Class A common stock (in shares) | | 348,810 | (348,810) | | | | |
Issuance of shares related to restricted stock units and awards, net of forfeitures (in shares) | | 452,657 | | | | | |
Shares withheld for employee taxes upon conversion of restricted stock (in shares) | | (33,980) | | | | | |
Shares withheld for employee taxes upon conversion of restricted stock | (459) | | | | (459) | | |
Other comprehensive income | 379 | | | | | | 379 |
Net income (loss) | (16,834) | | | | | (16,834) | |
Ending balance (in shares) at Mar. 31, 2018 | | 78,566,507 | 80,608,685 | (14,620,175) | | | |
Ending balance at Mar. 31, 2018 | 631,761 | $ 0 | $ 1 | $ (199,817) | 538,873 | 292,801 | (97) |
Beginning balance (in shares) at Dec. 31, 2017 | | 77,588,018 | 80,957,495 | (14,620,175) | | | |
Beginning balance at Dec. 31, 2017 | 642,772 | $ 0 | $ 1 | $ (199,817) | 534,159 | 308,905 | (476) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | |
Net income (loss) | (28,144) | | | | | | |
Ending balance (in shares) at Sep. 30, 2018 | | 86,447,709 | 80,608,685 | (14,620,175) | | | |
Ending balance at Sep. 30, 2018 | 702,018 | $ 0 | $ 1 | $ (199,817) | 615,782 | 281,491 | 4,561 |
Beginning balance (in shares) at Mar. 31, 2018 | | 78,566,507 | 80,608,685 | (14,620,175) | | | |
Beginning balance at Mar. 31, 2018 | 631,761 | $ 0 | $ 1 | $ (199,817) | 538,873 | 292,801 | (97) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | |
Stock-based compensation expense | 2,609 | | | | 2,609 | | |
Issuance of common stock related to business combination (in shares) | | 7,598,731 | | | | | |
Issuance of common stock related to business combination | 70,000 | | | | 70,000 | | |
Exercise of stock options (in shares) | | 21,059 | | | | | |
Exercise of stock options | 163 | | | | 163 | | |
Issuance of shares related to restricted stock units and awards, net of forfeitures (in shares) | | 466,474 | | | | | |
Shares withheld for employee taxes upon conversion of restricted stock (in shares) | | (60,521) | | | | | |
Shares withheld for employee taxes upon conversion of restricted stock | (610) | | | | (610) | | |
Other comprehensive income | 466 | | | | | | 466 |
Net income (loss) | (10,466) | | | | | (10,466) | |
Ending balance (in shares) at Jun. 30, 2018 | | 86,592,250 | 80,608,685 | (14,620,175) | | | |
Ending balance at Jun. 30, 2018 | 693,923 | $ 0 | $ 1 | $ (199,817) | 611,035 | 282,335 | 369 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | |
Stock-based compensation expense | 4,732 | | | | 4,732 | | |
Exercise of stock options (in shares) | | 2,000 | | | | | |
Exercise of stock options | 15 | | | | 15 | | |
Issuance of shares related to restricted stock units and awards, net of forfeitures (in shares) | | (139,879) | | | | | |
Shares withheld for employee taxes upon conversion of restricted stock (in shares) | | (6,662) | | | | | |
Shares withheld for employee taxes upon conversion of restricted stock | 0 | | | | 0 | | |
Other comprehensive income | 4,192 | | | | | | 4,192 |
Net income (loss) | (844) | | | | | (844) | |
Ending balance (in shares) at Sep. 30, 2018 | | 86,447,709 | 80,608,685 | (14,620,175) | | | |
Ending balance at Sep. 30, 2018 | 702,018 | $ 0 | $ 1 | $ (199,817) | 615,782 | 281,491 | 4,561 |
Beginning balance (in shares) at Dec. 31, 2018 | | 86,679,575 | 80,608,685 | (14,620,175) | | | |
Beginning balance at Dec. 31, 2018 | 682,589 | $ 0 | $ 1 | $ (199,817) | 618,674 | 270,471 | (6,740) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | |
Stock-based compensation expense | 5,163 | | | | 5,163 | | |
Conversion Class B to Class A common stock (in shares) | | 460,000 | (460,000) | | | | |
Issuance of shares related to restricted stock units and awards, net of forfeitures (in shares) | | 759,409 | | | | | |
Shares withheld for employee taxes upon conversion of restricted stock (in shares) | | (82,978) | | | | | |
Shares withheld for employee taxes upon conversion of restricted stock | (1,086) | | | | (1,086) | | |
Other comprehensive income | (8,054) | | | | | | (8,054) |
Net income (loss) | (8,323) | | | | | (8,323) | |
Ending balance (in shares) at Mar. 31, 2019 | | 87,816,006 | 80,148,685 | (14,620,175) | | | |
Ending balance at Mar. 31, 2019 | 670,289 | $ 0 | $ 1 | $ (199,817) | 622,751 | 262,148 | (14,794) |
Beginning balance (in shares) at Dec. 31, 2018 | | 86,679,575 | 80,608,685 | (14,620,175) | | | |
Beginning balance at Dec. 31, 2018 | 682,589 | $ 0 | $ 1 | $ (199,817) | 618,674 | 270,471 | (6,740) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | |
Net income (loss) | 3,057 | | | | | | |
Ending balance (in shares) at Sep. 30, 2019 | | 90,218,331 | 79,387,495 | (14,620,175) | | | |
Ending balance at Sep. 30, 2019 | 673,943 | $ 1 | $ 0 | $ (199,817) | 632,759 | 273,528 | (32,528) |
Beginning balance (in shares) at Mar. 31, 2019 | | 87,816,006 | 80,148,685 | (14,620,175) | | | |
Beginning balance at Mar. 31, 2019 | 670,289 | $ 0 | $ 1 | $ (199,817) | 622,751 | 262,148 | (14,794) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | |
Stock-based compensation expense | 2,740 | | | | 2,740 | | |
Exercise of stock options (in shares) | | 85,038 | 139,270 | | | | |
Exercise of stock options | 1,817 | | | | 1,817 | | |
Conversion Class B to Class A common stock (in shares) | | 460 | (460) | | | | |
Issuance of shares related to restricted stock units and awards, net of forfeitures (in shares) | | 753,800 | | | | | |
Shares withheld for employee taxes upon conversion of restricted stock (in shares) | | (105,349) | | | | | |
Shares withheld for employee taxes upon conversion of restricted stock | (1,400) | | | | (1,400) | | |
Other comprehensive income | (11,850) | | | | | | (11,850) |
Net income (loss) | 4,538 | | | | | 4,538 | |
Ending balance (in shares) at Jun. 30, 2019 | | 88,549,955 | 80,287,495 | (14,620,175) | | | |
Ending balance at Jun. 30, 2019 | 666,134 | $ 0 | $ 1 | $ (199,817) | 625,908 | 266,686 | (26,644) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | |
Stock-based compensation expense | 5,721 | | | | 5,721 | | |
Exercise of stock options (in shares) | | 169,023 | | | | | |
Exercise of stock options | 1,504 | | | | 1,504 | | |
Conversion Class B to Class A common stock (in shares) | | 900,000 | (900,000) | | | | |
Conversion Class B to Class A common stock | | $ 1 | $ (1) | | | | |
Issuance of shares related to restricted stock units and awards, net of forfeitures (in shares) | | 614,795 | | | | | |
Shares withheld for employee taxes upon conversion of restricted stock (in shares) | | (15,442) | | | | | |
Shares withheld for employee taxes upon conversion of restricted stock | (374) | | | | (374) | | |
Other comprehensive income | (5,884) | | | | | | (5,884) |
Net income (loss) | 6,842 | | | | | 6,842 | |
Ending balance (in shares) at Sep. 30, 2019 | | 90,218,331 | 79,387,495 | (14,620,175) | | | |
Ending balance at Sep. 30, 2019 | $ 673,943 | $ 1 | $ 0 | $ (199,817) | $ 632,759 | $ 273,528 | $ (32,528) |