Quarterly report pursuant to Section 13 or 15(d)

Investments in Marketable Debt Securities, Available-for-Sale - Schedule of Amortized Cost and Fair Value of Marketable Securities, Available-for-Sale, by Contractual Maturity (Detail)

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Investments in Marketable Debt Securities, Available-for-Sale - Schedule of Amortized Cost and Fair Value of Marketable Securities, Available-for-Sale, by Contractual Maturity (Detail) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2022
Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]    
Due in one year or less, Amortized Cost $ 254,487 $ 183,915
Due after one year through five years, Amortized Cost 64,064 96,035
Due after five years through ten years, Amortized Cost 11,588 11,129
Due after ten years, Amortized Cost 5,115 4,694
Amortized Cost 335,254 295,773
Due in one year or less, Fair Value 253,040 183,868
Due after one year through five years, Fair Value 62,267 96,257
Due after five years through ten years, Fair Value 10,546 11,601
Due after ten years, Fair Value 4,775 4,752
Total Fair Value $ 330,628 $ 296,478
Weighted average contractual maturity 1 year 3 months 18 days 1 year 6 months