Deferred Consideration - Additional Information (Detail) $ in Thousands	Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($) oz
Business Acquisition [Line Items]
Deferred consideration	$ 164,757	$ 228,062
Deferred consideration, current	15,162	16,739
Deferred consideration, non-current	$ 149,595	$ 211,323
April 1, 2018 through March 31, 2058 [Member]
Business Acquisition [Line Items]
Fixed payment ounces of gold | oz		9,500
April 1, 2058 and Thereafter [Member]
Business Acquisition [Line Items]
Fixed payment ounces of gold | oz		6,333