Financial Instruments - Derivatives and Hedging (Tables)

9 Months Ended

Sep. 30, 2020

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of interest rate derivatives

	Number of Instruments		Notional Amount
	September 30, 2020	December 31, 2019	September 30, 2020		December 31, 2019
Interest Rate Swaps	7	7	$	800,000	$	800,000

Schedule of derivative instruments in Statement of Financial Position, fair value

	Fair Value of Derivative Instruments
Interest rate swaps classified as:	September 30, 2020		December 31, 2019
Gross derivative assets	$	—	$	3,795
Gross derivative liabilities	(31,439)		(13,449)
Net derivative liabilities	$	(31,439)	$	(9,654)

Schedule of Derivatives in Cash Flow Hedging Relationships

Derivatives in Cash Flow Hedging Relationships (Interest Rate Swaps)	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Change in unrealized loss on interest rate swaps	$	(133)	$	(4,125)	$	(27,144)	$	(23,375)
Amortization (accretion) of interest rate swaps to interest expense	3,061		(1,207)		5,359		(5,998)
Change in unrealized gain (loss) on interest rate swaps, net	$	2,928	$	(5,332)	$	(21,785)	$	(29,373)