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v3.21.2

Stockholders' Equity - Components of Stockholders' Equity (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Beginning Balance | $ 201,502 | $ 173,409 | $ 185,766 | $ 158,088
Issuance of common stock under stock plans, including tax effects | 2,023 | $ 420 | 4,493 | $ 638
Repurchases of common stock | $ (7,973) |  | (10,646) |
Repurchases of common stock, Shares | (200,000) | 0 |  | 0
Stock-based compensation expense | $ 2,462 | $ 2,697 | 7,351 | $ 7,964
Accounting Standards Update [Extensible List] |  |  |  | ASU No. 2016-13 [Member]
Net income | 4,522 | (3,760) | 16,821 | $ 7,564
Net change in interest rate swap, net of tax | 128 | 205 | 457 | (931)
Net change in marketable investments, net of tax | (4) |  | (4) |
Foreign currency translation | (1,508) | 2,577 | (3,086) | 1,542
Ending Balance | 201,152 | 174,708 | 201,152 | 174,708
Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |  |
Beginning Balance |  |  |  | (157)
Common Stock [Member] |  |  |  |
Beginning Balance | $ 238 | $ 234 | $ 236 | $ 233
Beginning Balance, Shares | 23,780,000 | 23,401,000 | 23,648,000 | 23,275,000
Issuance of common stock under stock plans, including tax effects | $ 2 |  | $ 4 | $ 3
Issuance of common stock under,stock plans including tax effects, Shares | 262,000 | 178,000 | 394,000 | 304,000
Ending Balance | $ 240 | $ 236 | $ 240 | $ 236
Ending Balance, Shares | 24,042,000 | 23,579,000 | 24,042,000 | 23,579,000
Additional Paid-in Capital [Member] |  |  |  |
Beginning Balance | $ 237,485 | $ 222,778 | $ 230,128 | $ 216,454
Issuance of common stock under stock plans, including tax effects | 2,021 | 422 | 4,489 | 635
Stock-based compensation expense | 2,462 | 2,697 | 7,351 | 7,964
Ending Balance | 241,968 | 225,053 | 241,968 | 225,053
Retained Earnings [Member] |  |  |  |
Beginning Balance | 140,280 | 129,314 | 127,981 | 118,147
Net income | 4,522 | (3,760) | 16,821 | 7,564
Ending Balance | 144,802 | 125,554 | 144,802 | 125,554
Retained Earnings [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |  |
Beginning Balance |  |  |  | (157)
Treasury Stock [Member] |  |  |  |
Beginning Balance | $ (174,562) | $ (171,889) | $ (171,889) | $ (171,889)
Beginning Balance, Shares | 4,694,000 | 4,631,000 | 4,631,000 | 4,631,000
Repurchases of common stock | $ (7,973) |  | $ (10,646) |
Repurchases of common stock, Shares | (170,000) |  | (233,000) |
Ending Balance | $ (182,535) | $ (171,889) | $ (182,535) | $ (171,889)
Ending Balance, Shares | 4,864,000 | 4,631,000 | 4,864,000 | 4,631,000
Accumulated Other Comprehensive Income (Loss) [Member] |  |  |  |
Beginning Balance | $ (1,939) | $ (7,028) | $ (690) | $ (4,857)
Net change in interest rate swap, net of tax | 128 | 205 | 457 | (931)
Net change in marketable investments, net of tax | (4) |  | (4) |
Foreign currency translation | (1,508) | 2,577 | (3,086) | 1,542
Ending Balance | $ (3,323) | $ (4,246) | $ (3,323) | $ (4,246)

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