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Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 96,733	$ 302,600
Defined benefit pension plans
Amortization of actuarial loss, net of tax	6	16
Effects of settlements, net of tax	0	98
Other comprehensive income, net of tax	6	114
Comprehensive income	$ 96,739	$ 302,714

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