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Deferred Consideration - Gold Payments - Additional Information (Detail) $ / shares in Units, $ in Thousands	May 10, 2023 USD ($) $ / shares shares	Jun. 30, 2023 USD ($) oz $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares
Business Acquisition [Line Items]
Deferred consideration		$ 0	$ 200,290
Preferred Stock, Par or Stated Value Per Share \| $ / shares		$ 0.01	$ 0.01
SPA Agreement [Member]
Business Acquisition [Line Items]
Consideration	$ 136,903
Series C Redeemable Convertible Preferred Stock [Member]
Business Acquisition [Line Items]
Preferred Stock, Shares Issued \| shares	13,087	13,087.000	13,087.000
Preferred Stock, Par or Stated Value Per Share \| $ / shares	$ 0.01	$ 0.01	$ 0.01
Conversion of Stock, Shares Converted \| shares	13,087,000
Series C Redeemable Convertible Preferred Stock [Member] \| Gold Bullion Holdings [Member]
Business Acquisition [Line Items]
Cash	$ 4,371
Series C Redeemable Convertible Preferred Stock [Member] \| Rodber Investments Limited [Member]
Business Acquisition [Line Items]
Cash	$ 45,634
Series C Redeemable Convertible Preferred Stock [Member] \| SPA Agreement [Member]
Business Acquisition [Line Items]
Preferred Stock, Shares Issued \| shares		13,087,000
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