Fair-Value Measurements (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Derivative [Line Items]
Interest income (expense), net	$ (3,933)	$ (4,218)	$ (7,542)	$ (7,787)
Interest Rate Swap
Derivative [Line Items]
Interest income (expense), net			2,900	3,500
Interest Rate Swap Buyouts
Derivative [Line Items]
Interest income (expense), net			$ 0	$ 300