Annual report pursuant to Section 13 and 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
3 Months Ended 12 Months Ended
Mar. 31, 2023
Dec. 31, 2023
Dec. 31, 2022
Amortized Cost      
Due in one year or less   $ 169,018 $ 254,683
Due after one year through five years   48,241 56,507
Due after five years through ten years   12,950 13,435
Due after ten years   8,347 2,876
Amortized Cost   238,556 327,501
Fair Value      
Due in one year or less   168,881 253,434
Due after one year through five years   47,200 54,169
Due after five years through ten years   12,279 11,850
Due after ten years   7,980 2,576
Fair Value   $ 236,340 $ 322,029
Weighted average contractual maturity 1 year 1 month 6 days 1 year 10 months 24 days