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Accumulated Other Comprehensive Loss ("AOCL") - Schedule of Components of Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Accumulated Other Comprehensive Income Loss [Line Items]        
Beginning Balance $ 231,645 $ 210,099 $ 221,656 $ 203,907
Foreign currency translation (2,435) (4,971) (483) (10,813)
Reclassification to income, net of tax 30 (54) 52 (147)
Ending Balance 232,890 213,889 232,890 213,889
Marketable Investments [Member]        
Accumulated Other Comprehensive Income Loss [Line Items]        
Beginning Balance (137) (118) (159) (25)
Foreign currency translation [1] 0 0 0 0
Unrealized gain (loss), net of tax 30 (54) 52 (147)
Reclassification to income, net of tax [2]   0   0
Ending Balance (107) (172) (107) (172)
Interest Rate Swap [Member]        
Accumulated Other Comprehensive Income Loss [Line Items]        
Beginning Balance   52   (212)
Foreign currency translation [1]   0   0
Unrealized gain (loss), net of tax   13   136
Reclassification to income, net of tax [2]   (18)   123
Ending Balance   47   47
Translation Adjustment [Member]        
Accumulated Other Comprehensive Income Loss [Line Items]        
Beginning Balance (5,807) (8,794) (7,759) (2,952)
Foreign currency translation [1] (2,435) (4,971) (483) (10,813)
Unrealized gain (loss), net of tax 0 0 0 0
Reclassification to income, net of tax [2]   0   0
Ending Balance (8,242) (13,765) (8,242) (13,765)
Total AOCL [Member]        
Accumulated Other Comprehensive Income Loss [Line Items]        
Beginning Balance (5,944) (8,860) (7,918) (3,189)
Foreign currency translation [1] (2,435) (4,971) (483) (10,813)
Unrealized gain (loss), net of tax 30 (41) 52 (11)
Reclassification to income, net of tax [2]   (18)   123
Ending Balance $ (8,349) $ (13,890) $ (8,349) $ (13,890)
[1] The Company does not record tax provisions or benefits for the net changes in foreign currency translation adjustments as it intends to permanently reinvest undistributed earnings of its foreign subsidiaries.
[2] Reclassification is related to the Company’s interest rate swap (cash flow hedge) and was recorded in interest expense in the Consolidated Statements of Operations. Refer to Note 7 – Derivatives and Hedging.