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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
Mar. 31, 2022
Mar. 31, 2021
Accumulated Other Comprehensive Income Loss [Line Items]    
Beginning Balance $ 203,907 $ 185,766
Foreign currency translation (1,314) (2,301)
Reclassification to income, net of tax (64) 0
Ending Balance 202,430 192,237
Marketable Investments [Member]    
Accumulated Other Comprehensive Income Loss [Line Items]    
Beginning Balance (25)  
Foreign currency translation [1] 0  
Unrealized gain before reclassification, net of tax (64)  
Reclassification to income, net of tax [2] 0  
Ending Balance (89)  
Interest Rate Swap [Member]    
Accumulated Other Comprehensive Income Loss [Line Items]    
Beginning Balance (212) (821)
Foreign currency translation [1] 0 0
Unrealized gain before reclassification, net of tax 91 (4)
Reclassification to income, net of tax [2] 105 186
Ending Balance (16) (631)
Translation Adjustment [Member]    
Accumulated Other Comprehensive Income Loss [Line Items]    
Beginning Balance (2,952) (131)
Foreign currency translation [1] (1,314) (2,301)
Unrealized gain before reclassification, net of tax 0 0
Reclassification to income, net of tax [2] 0 0
Ending Balance (4,266) (2,170)
Total AOCI/L [Member]    
Accumulated Other Comprehensive Income Loss [Line Items]    
Beginning Balance (3,189) (690)
Foreign currency translation [1] (1,314) (2,301)
Unrealized gain before reclassification, net of tax 27 4
Reclassification to income, net of tax [2] 105 186
Ending Balance $ (4,371) $ (2,801)
[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 on the Consolidated Statements of Income. Refer to Note 7 – Derivatives and Hedging.