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Consolidated 50% Owned Subsidiary - Statement of Operations (Details) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Variable Interest Entity [Line Items]
Operating income	$ 37,043	$ 49,475	$ 43,989	$ 29,363	$ 20,058	$ 32,010	$ 32,514	$ 22,429	$ 20,181	$ 27,887	$ 32,534	$ 12,013	$ 159,870	$ 107,011	$ 92,615

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- Definition

The net result for the period of deducting operating expenses from operating revenues.

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-Publisher FASB
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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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