Fair Value Measurements - Valuation of Company's Assets and Liabilities Measured at Fair Value (Detail) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Assets
Money market funds	$ 3,314	$ 23,355
Assets Fair Value Total	175,348	195,879
Liabilities
Total liabilities	1,613
Foreign Currency Forward Position [Member]
Assets
Foreign currency forward position		1,847
Liabilities
Foreign currency forward position	1,613
Mutual Funds Held In Rabbi Trust [Member]
Assets
Mutual funds held in rabbi trust	12,044	11,465
U.S. Treasuries [Member]
Assets
Trading securities	99,551	100,772
Corporate Debt [Member]
Assets
Securities available-for-sale	59,472	58,440
Interest Rate Swap [Member]
Assets
Interest rate swaps	967
Level 1 [Member]
Assets
Money market funds	3,314	23,355
Assets Fair Value Total	3,314	23,355
Level 2 [Member]
Assets
Assets Fair Value Total	172,034	172,524
Liabilities
Total liabilities	1,613
Level 2 [Member] | Foreign Currency Forward Position [Member]
Assets
Foreign currency forward position		1,847
Liabilities
Foreign currency forward position	1,613
Level 2 [Member] | Mutual Funds Held In Rabbi Trust [Member]
Assets
Mutual funds held in rabbi trust	12,044	11,465
Level 2 [Member] | U.S. Treasuries [Member]
Assets
Trading securities	99,551	100,772
Level 2 [Member] | Corporate Debt [Member]
Assets
Securities available-for-sale	59,472	$ 58,440
Level 2 [Member] | Interest Rate Swap [Member]
Assets
Interest rate swaps	$ 967