Derivatives - Effect of Derivative Instruments on Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Effect of derivative instruments on results of operations
Total amount of interest expense in which the effects of cash flow hedges are recorded	$ 29,665	$ 23,617
Interest Rate Swaps
Effect of derivative instruments on results of operations
Pre-tax loss recognized in other comprehensive loss	(7,573)	(2,299)
Pre-tax income (loss) reclassified from accumulated other comprehensive income (loss) into interest expense	(248)	926
Total amount of interest expense in which the effects of cash flow hedges are recorded	$ 29,665	$ 23,617