Summary of Significant Accounting Policies (Interest Rate Swaps) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Summary of Derivative Instruments Impact on Results of Operations [Abstract]
Market value adjustment to interest rate swaps designated as hedging instruments and included in other comprehensive income (loss)	$ (19,993)	$ (1,431)
Interest rate contracts | Prepaid expenses and other assets
Derivative, Fair Value, Net [Abstract]
Derivative designated as hedging instruments	0		$ 551
Interest rate contracts | Accounts payable
Derivative, Fair Value, Net [Abstract]
Derivative designated as hedging instruments	$ 21,094		$ 1,652