Derivatives - Summary of Amounts Paid and Received on Interest Rate Swap Transactions, Excluding Upfront Fees (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023		Sep. 30, 2022
Derivative [Line Items]
Notional Amount			$ 952,500,000		$ 1,047,510,000
Paid	$ (15,506,000)	$ (9,619,000)	(39,160,000)		(24,513,000)
Received	7,668,000	7,909,000	18,681,000		26,681,000
Net	(7,838,000)	(1,710,000)	$ (20,479,000)		$ 2,168,000
Interest Rate Swap One
Derivative [Line Items]
Maturity Date			Jan. 22, 2023	[1]	Aug. 01, 2022
Notional Amount					$ 115,000,000
Paid		(427,000)	$ (663,000)	[1]	(2,159,000)
Received		460,000	431,000	[1]	3,048,000
Net		33,000	$ (232,000)	[1]	$ 889,000
Interest Rate Swap Two
Derivative [Line Items]
Maturity Date			Nov. 01, 2024		Aug. 01, 2022
Notional Amount			$ 300,000,000		$ 50,000,000
Paid	(5,911,000)	(150,000)	(16,744,000)		(706,000)
Received	2,906,000	200,000	8,719,000		1,325,000
Net	(3,005,000)	50,000	$ (8,025,000)		$ 619,000
Interest Rate Swap Three
Derivative [Line Items]
Maturity Date			Nov. 01, 2024		Aug. 01, 2022
Notional Amount			$ 50,000,000		$ 7,500,000
Paid	(1,011,000)	(23,000)	(2,859,000)		(106,000)
Received	484,000	30,000	1,453,000		198,000
Net	(527,000)	7,000	$ (1,406,000)		$ 92,000
Interest Rate Swap Four
Derivative [Line Items]
Maturity Date			Nov. 01, 2024		Aug. 01, 2022
Notional Amount			$ 2,500,000		$ 27,531,000
Paid	(24,000)	(117,000)	(72,000)		(730,000)
Received	49,000	101,000	140,000		474,000
Net	(25,000)	(16,000)	$ 68,000		$ (256,000)
Interest Rate Swap Five
Derivative [Line Items]
Maturity Date			Aug. 01, 2026		Aug. 01, 2022
Notional Amount			$ 300,000,000		$ 2,160,000
Paid	(5,651,000)	(9,000)	(15,913,000)		(57,000)
Received	1,854,000	8,000	5,563,000		37,000
Net	(3,797,000)	(1,000)	$ (10,350,000)		$ (20,000)
Interest Rate Swap Six
Derivative [Line Items]
Maturity Date			Aug. 14, 2028		Aug. 01, 2022
Notional Amount			$ 300,000,000		$ 42,819,000
Paid	(2,909,000)	(171,000)	(2,909,000)		(1,134,000)
Received	2,375,000	149,000	2,375,000		737,000
Net	$ (534,000)	(22,000)	$ (534,000)		$ (397,000)
Interest Rate Swap Seven
Derivative [Line Items]
Maturity Date					Jan. 22, 2023
Notional Amount					$ 150,000,000
Paid		(1,620,000)			(3,591,000)
Received		1,688,000			5,063,000
Net		68,000			$ 1,472,000
Interest Rate Swap Eight
Derivative [Line Items]
Maturity Date					Nov. 01, 2024
Notional Amount					$ 300,000,000
Paid		(3,374,000)			(7,708,000)
Received		2,907,000			8,719,000
Net		(467,000)			$ 1,011,000
Interest Rate Swap Nine
Derivative [Line Items]
Maturity Date					Nov. 01, 2024
Notional Amount					$ 50,000,000
Paid		(589,000)			(1,356,000)
Received		484,000			1,453,000
Net		(105,000)			$ 97,000
Interest Rate Swap Ten
Derivative [Line Items]
Maturity Date					Nov. 01, 2024
Notional Amount					$ 2,500,000
Paid		(24,000)			(72,000)
Received		28,000			64,000
Net		4,000			$ (8,000)
Interest Rate Swap Eleven
Derivative [Line Items]
Maturity Date					Aug. 01, 2026
Notional Amount					$ 300,000,000
Paid		(3,115,000)			(6,894,000)
Received		1,854,000			5,563,000
Net		$ (1,261,000)			$ (1,331,000)

[1] As of September 30, 2023, this interest rate swap had either matured or been terminated due to repayment of the underlying investment or security.