Borrowings - Schedule of Long-Term Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Notes and subordinated debt	$ 899,071	$ 1,036,974
Debt issuance cost on 2029 senior notes	(1,137)	(1,419)
Long-term debt	909,185	1,048,820
Subordinated Debt
Debt Instrument [Line Items]
Premium on 2029 subordinated notes and 2030 subordinated notes	11,674	13,802
2029 subordinated notes \| Subordinated Debt
Debt Instrument [Line Items]
Subordinated fixed-to-floating rate notes	274,000	274,000
2030 subordinated notes \| Subordinated Debt
Debt Instrument [Line Items]
Subordinated fixed-to-floating rate notes	225,000	225,000
Junior Subordinated Debt
Debt Instrument [Line Items]
Notes and subordinated debt	77,320	77,320
Long-term Debt
Debt Instrument [Line Items]
Discount on 2029 senior notes	(423)	(537)
Basis adjustment	22,800	28,100
2024 senior notes \| Senior Notes
Debt Instrument [Line Items]
Notes and subordinated debt	0	132,550
2029 senior notes \| Senior Notes
Debt Instrument [Line Items]
Notes and subordinated debt	$ 322,751	$ 328,104

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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