Contractual option amount.

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- Definition

Investment in number of ounce of gold bars.

+ References

No definition available.

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- Definition

Maximum contract value.

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No definition available.

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- Definition

Subscription contract term.

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No definition available.

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- Definition

Cost of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Excludes equity method investment and investment in equity security without readily determinable fair value.

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No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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- Definition

Investments held in physical commodities, such as gold, silver, platinum, crude oil, coal, sugar, rice, wheat.

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- Definition

Amount of realized gain (loss) on investment in marketable security, including other-than-temporary impairment (OTTI).

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No definition available.

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- Definition

Amount of unrealized gain (loss) on investment in marketable security.

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- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Investments and Fair Value Measurements - Additional Information (Detail) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($) oz
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unrealized gain (loss) for marketable securities	$ (122,800)		$ (174,700)
Realized gain (loss) for marketable securities	(15,700)		(26,600)
Revenue	473,010	$ 375,642	919,367	$ 716,876
Equity securities, fv-ni, cost	89,500		89,500		$ 326,000
Alternative Investment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment in physical commodities					$ 50,900
Investment in number of ounce of gold bars \| oz					100
Commercial Contract \| Investment Agreement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Maximum contract value	754,900		754,900
Revenue	31,400		70,600
Commercial Contract \| Maximum \| Investment Agreement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contractual option amounts	$ 116,200		$ 116,200
Subscription contract term			10 years
Commercial Contract \| Minimum \| Investment Agreement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Subscription contract term			3 years