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v3.21.1

Stockholders' Equity - Components of Stockholders' Equity (Detail) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Beginning Balance | $ 185,766 | $ 158,088
Issuance of common stock under stock plans, including tax effects | 2,134 | 1,053
Stock-based compensation expense | 2,492 | $ 2,802
Accounting Standards Update [Extensible List] |  | ASU No. 2016-13 [Member]
Net income (loss) | 3,956 | $ (513)
Net change in interest rate swap, net of tax | 190 | (1,181)
Foreign currency translation | (2,301) | (1,920)
Ending Balance | 192,237 | 158,172
Cumulative Effect, Period of Adoption, Adjustment [Member] |  |
Beginning Balance |  | (157)
Common Stock [Member] |  |
Beginning Balance | $ 236 | $ 233
Beginning Balance, Shares | 23,648,000 | 23,275,000
Issuance of common stock under stock plans, including tax effects | $ 2 | $ 1
Issuance of common stock under,stock plans including tax effects, Shares | 107,000 | 114,000
Ending Balance | $ 238 | $ 234
Ending Balance, Shares | 23,755,000 | 23,389,000
Additional Paid-in Capital [Member] |  |
Beginning Balance | $ 230,128 | $ 216,454
Issuance of common stock under stock plans, including tax effects | 2,132 | 1,052
Stock-based compensation expense | 2,492 | 2,802
Ending Balance | 234,752 | 220,308
Retained Earnings [Member] |  |
Beginning Balance | 127,981 | 118,147
Net income (loss) | 3,956 | (513)
Ending Balance | 131,937 | 117,477
Retained Earnings [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] |  |
Beginning Balance |  | (157)
Treasury Stock [Member] |  |
Beginning Balance | $ (171,889) | $ (171,889)
Beginning Balance, Shares | 4,631,000 | 4,631,000
Ending Balance | $ (171,889) | $ (171,889)
Ending Balance, Shares | 4,631,000 | 4,631,000
Accumulated Other Comprehensive Income (Loss) [Member] |  |
Beginning Balance | $ (690) | $ (4,857)
Net change in interest rate swap, net of tax | 190 | (1,181)
Foreign currency translation | (2,301) | (1,920)
Ending Balance | $ (2,801) | $ (7,958)

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