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Summary of Assets and Liabilities Recorded at Fair Value on Recurring Basis (Detail) - Recurring - USD ($) $ in Thousands | Jun. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Assets: |  |
Assets, fair value | $ 434,530 | $ 178,706
Liabilities: |  |
Liabilities, fair value | 31,292 | 35,510
Money Market Mutual Funds | Cash and Cash Equivalents |  |
Assets: |  |
Assets, fair value | 174,200 |
Money Market Mutual Funds | Other Assets |  |
Assets: |  |
Assets, fair value | 60,870 | 60,175
Term Deposit | Cash and Cash Equivalents |  |
Assets: |  |
Assets, fair value | 100,000 |
Certificates of Deposit | Other Assets |  |
Assets: |  |
Assets, fair value | 2,201 | 2,200
Available for Sale Securities | Other Assets |  |
Assets: |  |
Assets, fair value | 63,780 | 70,478
Deferred Compensation Assets | Other Assets |  |
Assets: |  |
Assets, fair value | 31,292 | 35,510
Foreign Currency Foreign Exchange Contracts | Other Current Assets |  |
Assets: |  |
Assets, fair value | 2,187 | 10,343
Deferred Compensation Liability | Other Noncurrent Liabilities |  |
Liabilities: |  |
Liabilities, fair value | 31,292 | 35,510
Basis of Fair Value Measurement, Level 1 |  |
Assets: |  |
Assets, fair value | 332,343 | 168,363
Liabilities: |  |
Liabilities, fair value | 31,292 | 35,510
Basis of Fair Value Measurement, Level 1 | Money Market Mutual Funds | Cash and Cash Equivalents |  |
Assets: |  |
Assets, fair value | 174,200 |
Basis of Fair Value Measurement, Level 1 | Money Market Mutual Funds | Other Assets |  |
Assets: |  |
Assets, fair value | 60,870 | 60,175
Basis of Fair Value Measurement, Level 1 | Certificates of Deposit | Other Assets |  |
Assets: |  |
Assets, fair value | 2,201 | 2,200
Basis of Fair Value Measurement, Level 1 | Available for Sale Securities | Other Assets |  |
Assets: |  |
Assets, fair value | 63,780 | 70,478
Basis of Fair Value Measurement, Level 1 | Deferred Compensation Assets | Other Assets |  |
Assets: |  |
Assets, fair value | 31,292 | 35,510
Basis of Fair Value Measurement, Level 1 | Deferred Compensation Liability | Other Noncurrent Liabilities |  |
Liabilities: |  |
Liabilities, fair value | 31,292 | 35,510
Basis of Fair Value Measurement, Level 2 |  |
Assets: |  |
Assets, fair value | 102,187 | 10,343
Basis of Fair Value Measurement, Level 2 | Term Deposit | Cash and Cash Equivalents |  |
Assets: |  |
Assets, fair value | 100,000 |
Basis of Fair Value Measurement, Level 2 | Foreign Currency Foreign Exchange Contracts | Other Current Assets |  |
Assets: |  |
Assets, fair value | $ 2,187 | $ 10,343

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