Share Capital - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended		3 Months Ended	6 Months Ended
	Jul. 31, 2021	Jan. 31, 2021	Jun. 30, 2022	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Class of Stock [Line Items]
Common Stock, Shares Authorized			150,347,467	150,347,467		145,364,335
Common shares, par value			$ 0.03	$ 0.03		$ 0.03
Proceeds from issuance of common shares				$ 0	$ 213,267
Sales Agreement With Jefferies LLC [Member] | 2021 ATM [Member]
Class of Stock [Line Items]
Common shares sold			0	0
Average issue price of common shares				$ 169.82
Proceeds from issuance of common shares				$ 177,800
Equity issuance costs				$ 2,400
Shares, Issued			1,100,000	1,100,000
Sales Agreement With Jefferies LLC [Member] | Maximum [Member] | 2021 ATM [Member]
Class of Stock [Line Items]
Aggregate estimated gross proceeds	$ 419,800	$ 600,000