Fair Value Measurements - Schedule of Financial Assets and Financial Liabilities Measured at Fair Value (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unrealized gain (loss)	$ 1,420,000	$ 1,452,000	$ 4,230,000	$ (446,000)
Measurement Input, Discount Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Minimum range of unobservable inputs			0.00%		0.00%
Maximum range of unobservable inputs			8.00%		8.00%
Measurement Input, Appraisal Adjustments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Minimum range of unobservable inputs			0.00%		0.00%
Maximum range of unobservable inputs			10.00%		10.00%
Fair Value Measured at Net Asset Value Per Share
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity investment funds measured at NAV	3,900,000		$ 3,900,000		$ 3,400,000
Items measured on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	911,753,000		911,753,000		753,892,000
Equity investments	45,631,000		45,631,000		53,166,000
Interest rate derivative asset	67,791,000		67,791,000		87,776,000
Interest rate derivative liability	(67,415,000)		(67,415,000)		(87,848,000)
Items measured on a recurring basis | Level 1 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	48,542,000		48,542,000		43,036,000
Equity investments	0		0		0
Interest rate derivative asset	0		0		0
Interest rate derivative liability	0		0		0
Items measured on a recurring basis | Level 2 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	863,211,000		863,211,000		710,856,000
Equity investments	45,631,000		45,631,000		53,166,000
Interest rate derivative asset	67,791,000		67,791,000		87,776,000
Interest rate derivative liability	(67,415,000)		(67,415,000)		(87,848,000)
Items measured on a recurring basis | Level 3 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available-for-sale	0		0		0
Equity investments	0		0		0
Interest rate derivative asset	0		0		0
Interest rate derivative liability	0		0		0
Items measured on a non-recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity investments	50,057,000		50,057,000		46,997,000
Items measured on a non-recurring basis | Loans measured for impairment based on the fair value of the underlying collateral
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans measured for impairment based on the fair value of the underlying collateral	16,814,000		16,814,000		18,509,000
Items measured on a non-recurring basis | Level 1 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity investments	0		0		0
Items measured on a non-recurring basis | Level 1 Inputs | Loans measured for impairment based on the fair value of the underlying collateral
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans measured for impairment based on the fair value of the underlying collateral	0		0		0
Items measured on a non-recurring basis | Level 2 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity investments	0		0		0
Items measured on a non-recurring basis | Level 2 Inputs | Loans measured for impairment based on the fair value of the underlying collateral
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans measured for impairment based on the fair value of the underlying collateral	0		0		0
Items measured on a non-recurring basis | Level 3 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity investments	46,176,000		46,176,000		43,576,000
Items measured on a non-recurring basis | Level 3 Inputs | Loans measured for impairment based on the fair value of the underlying collateral
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans measured for impairment based on the fair value of the underlying collateral	16,814,000		16,814,000		18,509,000
Items measured on a non-recurring basis | Fair Value Measured at Net Asset Value Per Share
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity investments	$ 46,200,000		46,200,000		43,600,000
Unrealized gain (loss)			$ 0		$ 0