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Fair Value of Financial Instruments - Summary of Financial Assets and Liabilities Measured on Recurring Basis (Detail) - Fair Value, Recurring [Member] - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Assets measured at fair value |  |
Assets measured at fair value | $ 206,125 | $ 190,344
Liabilities measured at fair value |  |
Liabilities measured at fair value | 47,783 | 50,926
Derivative Financial Instruments, Liabilities [Member] |  |
Liabilities measured at fair value |  |
Liabilities measured at fair value | 1,882 | 3,277
Contingent Consideration Liabilities [Member] |  |
Liabilities measured at fair value |  |
Liabilities measured at fair value | 45,901 | 47,649
Cash and Cash Equivalents [Member] |  |
Assets measured at fair value |  |
Assets measured at fair value | 204,301 | 184,224
Derivative Financial Instruments [Member] |  |
Assets measured at fair value |  |
Assets measured at fair value | 1,824 |
Contingent Consideration Receivable [Member] |  |
Assets measured at fair value |  |
Assets measured at fair value |  | 6,120
Quoted Prices in Active Markets (Level 1) [Member] |  |
Assets measured at fair value |  |
Assets measured at fair value | 204,301 | 184,224
Quoted Prices in Active Markets (Level 1) [Member] | Cash and Cash Equivalents [Member] |  |
Assets measured at fair value |  |
Assets measured at fair value | 204,301 | 184,224
Significant Other Observable Inputs (Level 2) [Member] |  |
Assets measured at fair value |  |
Assets measured at fair value | 1,824 |
Liabilities measured at fair value |  |
Liabilities measured at fair value | 1,882 | 3,277
Significant Other Observable Inputs (Level 2) [Member] | Derivative Financial Instruments, Liabilities [Member] |  |
Liabilities measured at fair value |  |
Liabilities measured at fair value | 1,882 | 3,277
Significant Other Observable Inputs (Level 2) [Member] | Derivative Financial Instruments [Member] |  |
Assets measured at fair value |  |
Assets measured at fair value | 1,824 |
Significant Other Unobservable Inputs (Level 3) [Member] |  |
Assets measured at fair value |  |
Assets measured at fair value |  | 6,120
Liabilities measured at fair value |  |
Liabilities measured at fair value | 45,901 | 47,649
Significant Other Unobservable Inputs (Level 3) [Member] | Contingent Consideration Liabilities [Member] |  |
Liabilities measured at fair value |  |
Liabilities measured at fair value | $ 45,901 | 47,649
Significant Other Unobservable Inputs (Level 3) [Member] | Contingent Consideration Receivable [Member] |  |
Assets measured at fair value |  |
Assets measured at fair value |  | $ 6,120

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