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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands | Total | Common Stock | Treasury - Common Stock | Additional Paid-In Capital | Retained Earnings | Accumulated Other Comprehensive Income (Loss)
--- | --- | --- | --- | --- | --- | ---
Beginning balance (in shares) at Dec. 31, 2021 |  | 40,001 |  |  |  |
Beginning balance at Dec. 31, 2021 | $ 219,780 | $ 40 | $ (12,501) | $ 100,250 | $ 143,173 | $ (11,182)
Beginning balance, treasury stock, at cost (in shares) at Dec. 31, 2021 |  |  | 592 |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income (loss) | 5,214 |  |  |  | 5,214 |
Foreign currency translation adjustment, net of tax | (2,020) |  |  |  |  | (2,020)
Share-based compensation | 1,360 |  |  | 1,360 |  |
Vesting of restricted stock awards (in shares) |  | 34 |  |  |  |
Tax payments for stock issuances (in shares) |  | (14) |  |  |  |
Tax payments for stock issuances | (635) |  |  | (635) |  |
Unrealized gain (loss) on available-for-sale securities | (79) |  |  |  |  | (79)
Pension adjustment, net of tax | (25) |  |  |  |  | (25)
Ending balance (in shares) at Mar. 31, 2022 |  | 40,021 |  |  |  |
Ending balance at Mar. 31, 2022 | 223,595 | $ 40 | $ (12,501) | 100,975 | 148,387 | (13,306)
Ending balance, treasury stock, at cost (in shares) at Mar. 31, 2022 |  |  | 592 |  |  |
Beginning balance (in shares) at Dec. 31, 2021 |  | 40,001 |  |  |  |
Beginning balance at Dec. 31, 2021 | 219,780 | $ 40 | $ (12,501) | 100,250 | 143,173 | (11,182)
Beginning balance, treasury stock, at cost (in shares) at Dec. 31, 2021 |  |  | 592 |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income (loss) | (11,337) |  |  |  |  |
Unrealized gain (loss) on available-for-sale securities | (30) |  |  |  |  |
Ending balance (in shares) at Sep. 30, 2022 |  | 39,662 |  |  |  |
Ending balance at Sep. 30, 2022 | 194,922 | $ 40 | $ (18,222) | 104,669 | 131,836 | (23,401)
Ending balance, treasury stock, at cost (in shares) at Sep. 30, 2022 |  |  | 1,038 |  |  |
Beginning balance (in shares) at Mar. 31, 2022 |  | 40,021 |  |  |  |
Beginning balance at Mar. 31, 2022 | 223,595 | $ 40 | $ (12,501) | 100,975 | 148,387 | (13,306)
Beginning balance, treasury stock, at cost (in shares) at Mar. 31, 2022 |  |  | 592 |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income (loss) | (9,350) |  |  |  | (9,350) |
Foreign currency translation adjustment, net of tax | (5,315) |  |  |  |  | (5,315)
Share-based compensation (in shares) |  | 28 |  |  |  |
Share-based compensation | 1,253 |  |  | 1,253 |  |
Vesting of restricted stock awards (in shares) |  | (6) |  |  |  |
Vesting of restricted stock awards | (88) |  |  | (88) |  |
Tax payments for stock issuances (in shares) |  | (446) | (446) |  |  |
Tax payments for stock issuances | (5,721) |  | $ (5,721) |  |  |
Unrealized gain (loss) on available-for-sale securities | (10) |  |  |  |  | (10)
Pension adjustment, net of tax | (22) |  |  |  |  | (22)
Ending balance (in shares) at Jun. 30, 2022 |  | 39,597 |  |  |  |
Ending balance at Jun. 30, 2022 | 204,342 | $ 40 | $ (18,222) | 102,140 | 139,037 | (18,653)
Ending balance, treasury stock, at cost (in shares) at Jun. 30, 2022 |  |  | 1,038 |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income (loss) | (7,201) |  |  |  | (7,201) |
Foreign currency translation adjustment, net of tax | (4,786) |  |  |  |  | (4,786)
Vesting of restricted stock awards (in shares) |  | 101 |  |  |  |
Vesting of restricted stock awards | 2,884 |  |  | 2,884 |  |
Tax payments for stock issuances (in shares) |  | (36) |  |  |  |
Tax payments for stock issuances | (355) |  |  | (355) |  |
Unrealized gain (loss) on available-for-sale securities | 59 |  |  |  |  | 59
Pension adjustment, net of tax | (21) |  |  |  |  | (21)
Ending balance (in shares) at Sep. 30, 2022 |  | 39,662 |  |  |  |
Ending balance at Sep. 30, 2022 | $ 194,922 | $ 40 | $ (18,222) | 104,669 | 131,836 | (23,401)
Ending balance, treasury stock, at cost (in shares) at Sep. 30, 2022 |  |  | 1,038 |  |  |
Beginning balance (in shares) at Dec. 31, 2022 | 39,726 | 39,726 |  |  |  |
Beginning balance at Dec. 31, 2022 | $ 203,311 | $ 40 | $ (18,222) | 107,305 | 128,738 | (14,550)
Beginning balance, treasury stock, at cost (in shares) at Dec. 31, 2022 | 1,038 |  | 1,038 |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income (loss) | $ (8,356) |  |  |  | (8,356) |
Foreign currency translation adjustment, net of tax | 1,715 |  |  |  |  | 1,715
Share-based compensation | 3,812 |  |  | 3,812 |  |
Vesting of restricted stock awards (in shares) |  | 329 |  |  |  |
Tax payments for stock issuances (in shares) |  | (105) |  |  |  |
Tax payments for stock issuances | (1,098) |  |  | (1,098) |  |
Unrealized gain (loss) on available-for-sale securities | 7 |  |  |  |  | 7
Pension adjustment, net of tax | (60) |  |  |  |  | (60)
Ending balance (in shares) at Mar. 31, 2023 |  | 39,950 |  |  |  |
Ending balance at Mar. 31, 2023 | $ 199,331 | $ 40 | $ (18,222) | 110,019 | 120,382 | (12,888)
Ending balance, treasury stock, at cost (in shares) at Mar. 31, 2023 |  |  | 1,038 |  |  |
Beginning balance (in shares) at Dec. 31, 2022 | 39,726 | 39,726 |  |  |  |
Beginning balance at Dec. 31, 2022 | $ 203,311 | $ 40 | $ (18,222) | 107,305 | 128,738 | (14,550)
Beginning balance, treasury stock, at cost (in shares) at Dec. 31, 2022 | 1,038 |  | 1,038 |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income (loss) | $ (30,240) |  |  |  |  |
Unrealized gain (loss) on available-for-sale securities | $ 6 |  |  |  |  |
Ending balance (in shares) at Sep. 30, 2023 | 39,816 | 39,816 |  |  |  |
Ending balance at Sep. 30, 2023 | $ 177,318 | $ 40 | $ (21,749) | 115,162 | 98,498 | (14,633)
Ending balance, treasury stock, at cost (in shares) at Sep. 30, 2023 | 1,343 |  | 1,343 |  |  |
Beginning balance (in shares) at Mar. 31, 2023 |  | 39,950 |  |  |  |
Beginning balance at Mar. 31, 2023 | $ 199,331 | $ 40 | $ (18,222) | 110,019 | 120,382 | (12,888)
Beginning balance, treasury stock, at cost (in shares) at Mar. 31, 2023 |  |  | 1,038 |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income (loss) | (17,751) |  |  |  | (17,751) |
Foreign currency translation adjustment, net of tax | 1,025 |  |  |  |  | 1,025
Share-based compensation | 4,503 |  |  | 4,503 |  |
Vesting of restricted stock awards (in shares) |  | 44 |  |  |  |
Tax payments for stock issuances (in shares) |  | (15) |  |  |  |
Tax payments for stock issuances | (449) |  |  | (449) |  |
Unrealized gain (loss) on available-for-sale securities | 1 |  |  |  |  | 1
Pension adjustment, net of tax | (61) |  |  |  |  | (61)
Ending balance (in shares) at Jun. 30, 2023 |  | 39,979 |  |  |  |
Ending balance at Jun. 30, 2023 | 186,599 | $ 40 | $ (18,222) | 114,073 | 102,631 | (11,923)
Ending balance, treasury stock, at cost (in shares) at Jun. 30, 2023 |  |  | 1,038 |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income (loss) | (4,133) |  |  |  | (4,133) |
Foreign currency translation adjustment, net of tax | (2,647) |  |  |  |  | (2,647)
Share-based compensation | 1,878 |  |  | 1,878 |  |
Vesting of restricted stock awards (in shares) |  | 226 |  |  |  |
Tax payments for stock issuances (in shares) |  | (84) |  |  |  |
Tax payments for stock issuances | (789) |  |  | (789) |  |
Unrealized gain (loss) on available-for-sale securities | (2) |  |  |  |  | (2)
Share repurchases (in shares) |  | (305) | 305 |  |  |
Share repurchases | (3,527) |  | $ (3,527) |  |  |
Pension adjustment, net of tax | $ (61) |  |  |  |  | (61)
Ending balance (in shares) at Sep. 30, 2023 | 39,816 | 39,816 |  |  |  |
Ending balance at Sep. 30, 2023 | $ 177,318 | $ 40 | $ (21,749) | $ 115,162 | $ 98,498 | $ (14,633)
Ending balance, treasury stock, at cost (in shares) at Sep. 30, 2023 | 1,343 |  | 1,343 |  |  |

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