Stockholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands			1 Months Ended		9 Months Ended
	Jul. 02, 2021	Jun. 29, 2021	Mar. 31, 2022	Aug. 31, 2019	Sep. 30, 2022	Sep. 30, 2021
Follow-on Offering [Member]
Class Of Stock [Line Items]
Proceeds from common stock offering					$ 0	$ 648,315
2019 Sales Agreement [Member]
Class Of Stock [Line Items]
Proceeds from common stock offering					$ 38,900
Percentage of gross proceeds from common stock as sales agent cash commission				3.00%
Stock Issued During Period, Shares, New Issues					579,788
Common stock price per share					$ 69.43
2019 Sales Agreement [Member] | General and Administrative Expenses [Member]
Class Of Stock [Line Items]
Legal accounting and other fees					$ 200
2019 Sales Agreement [Member] | Maximum [Member]
Class Of Stock [Line Items]
Proceeds from common stock offering				$ 150,000
2022 Sales Agreement [Member]
Class Of Stock [Line Items]
Proceeds from common stock offering					$ 31,500
Percentage of gross proceeds from common stock as sales agent cash commission			3.00%
Stock Issued During Period, Shares, New Issues					553,204
Common stock price per share					$ 58.82
Proceeds From Sale of Marketable Securities					$ 8,300
Proceeds from common stock offering					367,500
2022 Sales Agreement [Member] | General and Administrative Expenses [Member]
Class Of Stock [Line Items]
Legal accounting and other fees					$ 100
2022 Sales Agreement [Member] | Maximum [Member]
Class Of Stock [Line Items]
Proceeds from common stock offering			$ 400,000
Underwriting Agreement [Member] | Follow-on Offering [Member]
Class Of Stock [Line Items]
Proceeds from common stock offering	$ 648,300
Stock Issued During Period, Shares, New Issues		4,758,620
Common stock price per share		$ 145.00
Underwriting discounts and estimated offering costs	$ 41,700