Unconsolidated Subsidiaries (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Variable Interest Entity [Line Items]
Income from equity method investee	$ 13,945		$ 14,927
Variable interest entity, reporting entity involvement, maximum risk of loss	4,500		7,100
Earnings of unconsolidated operations	13,824	$ 14,592
Other noncurrent assets
Variable Interest Entity [Line Items]
Income from equity method investee	$ 13,900		$ 14,900