Debt (Schedule of Interest Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Schedule of Interest Expense [Abstract]
Interest expense on debt at contractual rates	$ 10,234	$ 10,129	$ 31,055	$ 33,701
Losses reclassified from accumulated other comprehensive income (loss) into interest expense	1,851	1,778	5,449	4,533
Capitalized interest	(6)	(9)	(40)	(169)
Amortization of debt issuance costs and debt discount	636	994	2,064	2,524
Total Interest Expense	$ 12,715	$ 12,892	$ 38,528	$ 40,589