Summary of Assets and Liabilities Recorded at Fair Value on Recurring Basis (Detail) - Recurring - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Assets:
Assets, fair value	$ 206,690	$ 214,732
Liabilities:
Liabilities, fair value	48,229	49,222
Money Market Mutual Funds | Other Noncurrent Assets
Assets:
Assets, fair value	113,867	115,399
Certificates of Deposit | Other Noncurrent Assets
Assets:
Assets, fair value	2,206	2,206
Equity Securities | Other Noncurrent Assets
Assets:
Assets, fair value	43,046	47,333
Deferred Compensation Assets | Other Noncurrent Assets
Assets:
Assets, fair value	47,571	49,222
Foreign Currency Forward Exchange Contracts | Other Current Assets
Assets:
Assets, fair value		572
Foreign Currency Forward Exchange Contracts | Accrued Liabilities Other
Liabilities:
Liabilities, fair value	658
Deferred Compensation Liability | Other Noncurrent Liabilities
Liabilities:
Liabilities, fair value	47,571	49,222
Basis of Fair Value Measurement, Level 1
Assets:
Assets, fair value	204,484	211,954
Liabilities:
Liabilities, fair value	47,571	49,222
Basis of Fair Value Measurement, Level 1 | Money Market Mutual Funds | Other Noncurrent Assets
Assets:
Assets, fair value	113,867	115,399
Basis of Fair Value Measurement, Level 1 | Equity Securities | Other Noncurrent Assets
Assets:
Assets, fair value	43,046	47,333
Basis of Fair Value Measurement, Level 1 | Deferred Compensation Assets | Other Noncurrent Assets
Assets:
Assets, fair value	47,571	49,222
Basis of Fair Value Measurement, Level 1 | Deferred Compensation Liability | Other Noncurrent Liabilities
Liabilities:
Liabilities, fair value	47,571	49,222
Basis of Fair Value Measurement, Level 2
Assets:
Assets, fair value	2,206	2,778
Liabilities:
Liabilities, fair value	658
Basis of Fair Value Measurement, Level 2 | Certificates of Deposit | Other Noncurrent Assets
Assets:
Assets, fair value	2,206	2,206
Basis of Fair Value Measurement, Level 2 | Foreign Currency Forward Exchange Contracts | Other Current Assets
Assets:
Assets, fair value		$ 572
Basis of Fair Value Measurement, Level 2 | Foreign Currency Forward Exchange Contracts | Accrued Liabilities Other
Liabilities:
Liabilities, fair value	$ 658