Summary of Assets and Liabilities Recorded at Fair Value on Recurring Basis (Detail) - Recurring - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Assets:
Assets, fair value	$ 215,856	$ 221,235
Liabilities:
Liabilities, fair value	43,925	45,759
Money Market Mutual Funds | Cash and Cash Equivalents
Assets:
Assets, fair value	3,000
Money Market Mutual Funds | Other Assets
Assets:
Assets, fair value	85,029	79,900
Certificates of Deposit | Other Assets
Assets:
Assets, fair value	2,200	2,300
Equity Securities | Other Assets
Assets:
Assets, fair value	79,461	91,919
Deferred Compensation Assets | Other Assets
Assets:
Assets, fair value	43,925	45,759
Foreign Currency Foreign Exchange Contracts | Other Current Assets
Assets:
Assets, fair value	2,241	1,357
Deferred Compensation Liability | Other Noncurrent Liabilities
Liabilities:
Liabilities, fair value	43,925	45,759
Basis of Fair Value Measurement, Level 1
Assets:
Assets, fair value	211,415	217,578
Liabilities:
Liabilities, fair value	43,925	45,759
Basis of Fair Value Measurement, Level 1 | Money Market Mutual Funds | Cash and Cash Equivalents
Assets:
Assets, fair value	3,000
Basis of Fair Value Measurement, Level 1 | Money Market Mutual Funds | Other Assets
Assets:
Assets, fair value	85,029	79,900
Basis of Fair Value Measurement, Level 1 | Equity Securities | Other Assets
Assets:
Assets, fair value	79,461	91,919
Basis of Fair Value Measurement, Level 1 | Deferred Compensation Assets | Other Assets
Assets:
Assets, fair value	43,925	45,759
Basis of Fair Value Measurement, Level 1 | Deferred Compensation Liability | Other Noncurrent Liabilities
Liabilities:
Liabilities, fair value	43,925	45,759
Basis of Fair Value Measurement, Level 2
Assets:
Assets, fair value	4,441	3,657
Basis of Fair Value Measurement, Level 2 | Certificates of Deposit | Other Assets
Assets:
Assets, fair value	2,200	2,300
Basis of Fair Value Measurement, Level 2 | Foreign Currency Foreign Exchange Contracts | Other Current Assets
Assets:
Assets, fair value	$ 2,241	$ 1,357