Subordinated Debentures - Schedule of Outstanding Subordinated Debentures (Details) - USD ($)		1 Months Ended	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2020	Dec. 31, 2023	Dec. 31, 2022	May 31, 2019	Aug. 31, 2014
Debt Instrument [Line Items]
Carrying Value			$ 331,842,000	$ 331,204,000
Subordinated notes
Debt Instrument [Line Items]
Face amount of debt instrument			335,000,000
Carrying Value			$ 331,842,000	331,204,000
Subordinated notes | Subordinated notes due 2024, 5.75% per annum
Debt Instrument [Line Items]
Fixed interest rate (as a percent)			5.75%			5.75%
Current Interest Rate (as a percent)			5.75%
Face amount of debt instrument			$ 60,000,000			$ 60,000,000
Carrying Value			$ 59,910,000	59,791,000
Subordinated notes | Subordinated notes due 2029, 4.875% per annum until May 15, 2024, 3-month SOFR +2.762% thereafter
Debt Instrument [Line Items]
Fixed interest rate (as a percent)			4.875%		4.875%
Current Interest Rate (as a percent)			4.875%
Face amount of debt instrument			$ 125,000,000		$ 125,000,000
Carrying Value			$ 123,641,000	123,386,000
Subordinated notes | Subordinated notes due 2029, 4.875% per annum until May 15, 2024, 3-month SOFR +2.762% thereafter | SOFR
Debt Instrument [Line Items]
Variable rate (as a percent)	2.762%		2.762%
Subordinated notes | Subordinated notes due 2030, 5.375% per annum until June 15, 2025, 3-month SOFR +5.17% thereafter
Debt Instrument [Line Items]
Fixed interest rate (as a percent)			5.375%
Current Interest Rate (as a percent)		5.375%	5.375%
Face amount of debt instrument		$ 150,000,000	$ 150,000,000
Carrying Value			$ 148,291,000	$ 148,027,000
Subordinated notes | Subordinated notes due 2030, 5.375% per annum until June 15, 2025, 3-month SOFR +5.17% thereafter | SOFR
Debt Instrument [Line Items]
Variable rate (as a percent)		5.17%	0.0517%