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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, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Accumulated Other Comprehensive Income Loss [Line Items]        
Beginning Balance $ 237,054 $ 231,645 $ 240,265 $ 221,656
Reclassification adjustment for write-off of foreign currency translation loss (200)      
Unrealized gain, net of tax (36) (10) (44) (17)
Ending Balance 234,334 232,890 234,334 232,890
Marketable Investments [Member]        
Accumulated Other Comprehensive Income Loss [Line Items]        
Beginning Balance (36) (137) (60) (159)
Foreign currency translation [1] 0 0 0 0
Reclassification adjustment for write-off of foreign currency translation loss [2] 0   0  
Unrealized gain, net of tax 107 30 131 52
Ending Balance 71 (107) 71 (107)
Translation Adjustment [Member]        
Accumulated Other Comprehensive Income Loss [Line Items]        
Beginning Balance (6,690) (5,807) (4,511) (7,759)
Foreign currency translation [1] 3,910 (2,435) 1,731 (483)
Reclassification adjustment for write-off of foreign currency translation loss [2] 232   232  
Unrealized gain, net of tax 0 0 0 0
Ending Balance (2,548) (8,242) (2,548) (8,242)
Total AOCL [Member]        
Accumulated Other Comprehensive Income Loss [Line Items]        
Beginning Balance (6,726) (5,944) (4,571) (7,918)
Foreign currency translation [1] 3,910 (2,435) 1,731 (483)
Reclassification adjustment for write-off of foreign currency translation loss [2] 232   232  
Unrealized gain, net of tax 107 30 131 52
Ending Balance $ (2,477) $ (8,349) $ (2,477) $ (8,349)
[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] The reclassification adjustment for the write-off of a foreign currency translation loss relates to the liquidation of a non-U.S. subsidiary during 2024 and is reported in restructuring costs in the Consolidated Statements of Operations.