Accumulated Other Comprehensive Loss ("AOCL") - Schedule of Components of Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance		$ 240,265	$ 221,656
Foreign currency translation		(1,968)	1,206
Unrealized gain (loss), net of tax		(2)	(11)
Ending Balance		230,931	222,746
Marketable Investments [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance		(60)	(159)
Foreign currency translation	[1]	0	0
Unrealized gain (loss), net of tax		6	33
Ending Balance		(54)	(126)
Translation Adjustment [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance		(4,511)	(7,759)
Foreign currency translation	[1]	(1,968)	1,206
Unrealized gain (loss), net of tax		0	0
Ending Balance		(6,479)	(6,553)
Total AOCL [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance		(4,571)	(7,918)
Foreign currency translation	[1]	(1,968)	1,206
Unrealized gain (loss), net of tax		6	33
Ending Balance		$ (6,533)	$ (6,679)

[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.