Fair Value Measurement - Marketable Security Contractual Maturities (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mature within one year	$ 104,000	$ 97,459
Mature after one year through two years	48,065	146,197
Mature over two years	63,399	153,802
Fair Value	215,464	397,458
Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mature within one year	17,606
Mature after one year through two years	0
Mature over two years	0
Fair Value	17,606
Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mature within one year	74,797	92,559
Mature after one year through two years	35,414	134,199
Mature over two years	0	46,556
Fair Value	110,211	273,314
Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mature within one year	1,907	0
Mature after one year through two years	4,833	2,000
Mature over two years	60,207	94,704
Fair Value	66,947	96,704
U.S. government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mature within one year	7,719	0
Mature after one year through two years	7,480	7,995
Mature over two years	3,192	12,176
Fair Value	18,391	20,171
Foreign government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mature within one year	0	2,877
Mature after one year through two years	338	0
Mature over two years	0	366
Fair Value	338	3,243
Municipal/provincial bonds and other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mature within one year	1,971	2,002
Mature after one year through two years	0	2,003
Mature over two years	0	0
Fair Value	$ 1,971	4,005
Total
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mature within one year		97,438
Mature after one year through two years		146,197
Mature over two years		153,802
Fair Value		397,437
Pending purchases and sales
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mature within one year		21
Mature after one year through two years		0
Mature over two years		0
Fair Value		$ 21