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Fair Value Measurements - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Detail) - Fair Value, Measurements, Recurring
$ in Thousands
Dec. 31, 2022
USD ($)
Quoted Prices in Active Markets for Identical Assets (Level 1)  
Assets:  
Money market instruments $ 415
Corporate bonds 0
Treasury bills 0
Asset-backed securities 0
Agency bonds 0
Sovereign bonds 0
Municipal bonds 0
Economic hedge forward contracts 0
Liabilities:  
Economic hedge forward contracts 0
Significant Other Observable Inputs (Level 2)  
Assets:  
Money market instruments 0
Corporate bonds 538,495
Treasury bills 55,546
Asset-backed securities 60,429
Agency bonds 15,858
Sovereign bonds 1,924
Municipal bonds 624
Economic hedge forward contracts 27
Liabilities:  
Economic hedge forward contracts 479
Unobservable Inputs (Level 3)  
Assets:  
Money market instruments 0
Corporate bonds 0
Treasury bills 0
Asset-backed securities 0
Agency bonds 0
Sovereign bonds 0
Municipal bonds 0
Economic hedge forward contracts 0
Liabilities:  
Economic hedge forward contracts $ 0