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Shares Repurchased (Details) - USD ($)		1 Months Ended	12 Months Ended
	Feb. 22, 2022	Feb. 22, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Shares Repurchased [Line Items]
Stock repurchase program period in force		3 years
Stock repurchase program period in force date	Apr. 27, 2025
Aggregate cost			$ 3,570,000	$ 3,418,000	$ 34,506,000
Remained future purchases			$ 96,406,000
Convertible shares (in Shares)			13,087,000
Purchase price payable			$ (40,000,000)
Minimum [Member]
Shares Repurchased [Line Items]
Common stock purchase authorized amount	$ 85,709,000	$ 85,709,000
Maximum [Member]
Shares Repurchased [Line Items]
Common stock purchase authorized amount	$ 100,000,000	$ 100,000,000
World Gold Council [Member]
Shares Repurchased [Line Items]
Aggregate cost			$ 84,411,000
Board of Directors [Member] | Common Stock [Member]
Shares Repurchased [Line Items]
Repurchased shares (in Shares)			635,653	593,261	5,120,496
Gold Bullion Holdings [Member]
Shares Repurchased [Line Items]
Purchase price payable			$ 40,000,000

X

- Definition

The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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The cash inflow from issuance of preferred stocks identified as being convertible into another form of financial instrument, typically the entity's common stock.

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Amount of stock repurchase plan authorized.

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Expiration date for the purchase of an entity's own shares under a stock repurchase plan, in the YYYY-MM-DD format.

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Period which shares may be purchased under a stock repurchase plan authorized by an entity's Board of Directors, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount remaining of a stock repurchase plan authorized.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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