Revenue Recognition (Disaggregation of Revenue) (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, 2022	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Revenue	$ 363,770	$ 377,995	$ 387,202	$ 312,042	$ 313,673	$ 298,485	$ 337,554	$ 270,988	$ 1,441,009	$ 1,220,700	$ 1,228,682
Real Estate
Disaggregation of Revenue [Line Items]
Revenue									15,884	18,203	24,181
Real Estate | Sales on facilities primarily from Escena
Disaggregation of Revenue [Line Items]
Revenue									3,259	5,353	3,681
Real Estate | Revenues from investments in real estate
Disaggregation of Revenue [Line Items]
Revenue									$ 12,625	$ 12,850	$ 20,500