Fair Value Measurements - Summary of Subordinated Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Revolving credit facility | Carrying Value
Debt Instrument [Line Items]
Long-term debt	$ 100,000	$ 50,000
Revolving credit facility | Fair Value
Debt Instrument [Line Items]
Long-term debt	100,000	50,000
Notes payable | Carrying Value
Debt Instrument [Line Items]
Long-term debt	100,000	50,000
Notes payable | Fair Value
Debt Instrument [Line Items]
Long-term debt	100,000	50,000
Junior subordinated interest debentures | Carrying Value
Debt Instrument [Line Items]
Long-term debt	0	59,186
Junior subordinated interest debentures | Fair Value
Debt Instrument [Line Items]
Long-term debt	0	59,794
Unsecured subordinated notes | Carrying Value
Debt Instrument [Line Items]
Long-term debt	18,916	19,504
Unsecured subordinated notes | Fair Value
Debt Instrument [Line Items]
Long-term debt	21,168	21,378
Subordinated debt, net of debt issuance costs | Carrying Value
Debt Instrument [Line Items]
Long-term debt	18,916	78,690
Subordinated debt, net of debt issuance costs | Fair Value
Debt Instrument [Line Items]
Long-term debt	$ 21,168	$ 81,172