Fair-Value Measurements (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Derivative [Line Items]
Interest income (expense), net	$ (3,609)	$ (3,569)
Interest Rate Swap
Derivative [Line Items]
Interest income (expense), net	$ 1,700	1,700
Interest Rate Swap Buyouts
Derivative [Line Items]
Interest income (expense), net		$ 300