Debt (Schedule of Interest Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Schedule of Interest Expense [Abstract]
Interest expense on debt at contractual rates	$ 10,569	$ 13,355	$ 23,572	$ 26,429
Losses reclassified from accumulated other comprehensive income (loss) into interest expense	2,263	350	2,755	641
Capitalized interest	(19)	(158)	(117)	(315)
Amortization of debt issuance costs and debt discount	744	899	1,487	1,791
Total Interest Expense	$ 13,557	$ 13,746	$ 27,697	$ 27,264