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Cash, Cash Equivalents and Investments - Gross Unrealized Losses and Fair Value for Available-for-Sale Investments (Detail) $ in Thousands | Dec. 31, 2022 USD ($)
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Debt Securities, Available-for-sale [Line Items] |
Fair Value, Less than 12 months | $ 382,732
Unrealized Losses, Less than 12 months | (12,718)
Fair Value, Greater than 12 Months | 190,707
Unrealized Losses, Greater than 12 Months | (14,842)
Fair Value | 573,439
Unrealized Losses | (27,560)
Treasury Bills [Member] |
Debt Securities, Available-for-sale [Line Items] |
Fair Value, Less than 12 months | 32,614
Unrealized Losses, Less than 12 months | (465)
Fair Value, Greater than 12 Months | 102
Unrealized Losses, Greater than 12 Months | (3)
Fair Value | 32,716
Unrealized Losses | (468)
Asset-Backed Securities [Member] |
Debt Securities, Available-for-sale [Line Items] |
Fair Value, Less than 12 months | 47,582
Unrealized Losses, Less than 12 months | (2,299)
Fair Value, Greater than 12 Months | 2,495
Unrealized Losses, Greater than 12 Months | (126)
Fair Value | 50,077
Unrealized Losses | (2,425)
Sovereign Bonds [Member] |
Debt Securities, Available-for-sale [Line Items] |
Fair Value, Less than 12 months | 967
Unrealized Losses, Less than 12 months | (67)
Fair Value, Greater than 12 Months | 957
Unrealized Losses, Greater than 12 Months | (104)
Fair Value | 1,924
Unrealized Losses | (171)
Corporate Bonds [Member] |
Debt Securities, Available-for-sale [Line Items] |
Fair Value, Less than 12 months | 285,087
Unrealized Losses, Less than 12 months | (9,591)
Fair Value, Greater than 12 Months | 187,153
Unrealized Losses, Greater than 12 Months | (14,609)
Fair Value | 472,240
Unrealized Losses | (24,200)
Agency Bonds [Member] |
Debt Securities, Available-for-sale [Line Items] |
Fair Value, Less than 12 months | 15,858
Unrealized Losses, Less than 12 months | (285)
Fair Value, Greater than 12 Months | 0
Unrealized Losses, Greater than 12 Months | 0
Fair Value | 15,858
Unrealized Losses | (285)
Municipal Bonds [Member] |
Debt Securities, Available-for-sale [Line Items] |
Fair Value, Less than 12 months | 624
Unrealized Losses, Less than 12 months | (11)
Fair Value, Greater than 12 Months | 0
Unrealized Losses, Greater than 12 Months | 0
Fair Value | 624
Unrealized Losses | $ (11)

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