Derivative Instruments - Non-hedge Derivatives (Details) - Not Designated as Hedging Instrument - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Derivative [Line Items]
Notional Amount		$ 3,583,522		$ 3,241,040
Estimated Fair Value (1)	[1]	(29,341)		(56,720)
Derivative, Gain (Loss) on Derivative, Net		(63)	$ 281
Assets
Derivative [Line Items]
Notional Amount		1,791,761		1,620,520
Estimated Fair Value (1)	[1]	45,773		39,763
Liabilities
Derivative [Line Items]
Notional Amount		1,791,761		1,620,520
Estimated Fair Value (1)	[1]	$ (75,114)		$ (96,483)

[1] The variation margin payments for derivatives cleared through central clearing houses are characterized as settlements. At March 31, 2023 and December 31, 2022, the notional amount of interest rate swap agreements designated as non-hedge derivatives cleared through clearing houses was $526.3 million and $827.3 million with a fair value that approximates zero due to $28.9 million and $56.3 million in received variation margin payments.