Cash, Cash Equivalents and Investments - Effective Maturity Dates of Available-for-Sale Investments (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Less than 1 Year	$ 129,392
1-2 Years	71,888
2-3 Years	54,469
3-4 Years	67,166
4-5 Years	44,264
Fair Value, Total	373,622	$ 672,876
available for sale securities debt maturities after five years before seven years fair value	6,443
Treasury Bills [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 1 Year	0
1-2 Years	2,441
2-3 Years	6,115
3-4 Years	22,270
4-5 Years	12,697
Fair Value, Total	43,523
available for sale securities debt maturities after five years before seven years fair value	0
Corporate Bonds [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 1 Year	124,851
1-2 Years	62,596
2-3 Years	44,906
3-4 Years	44,896
4-5 Years	31,567
Fair Value, Total	308,816
available for sale securities debt maturities after five years before seven years fair value	0
Asset-Backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 1 Year	3,551
1-2 Years	5,872
2-3 Years	3,448
3-4 Years	0
4-5 Years	0
Fair Value, Total	19,314
available for sale securities debt maturities after five years before seven years fair value	6,443
Sovereign Bonds [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 1 Year	990
1-2 Years	979
2-3 Years	0
3-4 Years	0
4-5 Years	0
Fair Value, Total	1,969
available for sale securities debt maturities after five years before seven years fair value