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Derivative Instruments - Location and Amounts of Interest Rate Swap Gains and Losses (Details) - Derivatives Not Designated as Hedging Instruments - Interest Rate Swaps - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Net unrealized gain (loss) on financial instruments
Derivative Instruments, Gain (Loss) [Line Items]
Interest rate swap gains (losses)	$ 6,527	$ 3,774	$ 20,008	$ (32,722)
Financing interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Interest rate swap gains (losses)	$ (7,037)	$ (5,438)	$ (18,575)	$ (10,336)

X

- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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