Fair Value - Schedule of Carrying Amount and Fair Value of Other Significant Financial Instruments Not Measured on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Financial Assets
HTM debt securities	$ 576,155	$ 586,178
Time deposits with other banks	2,490	14,424
Loans, net	12,465,180	12,449,181
Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial Assets
HTM debt securities	0	0
Time deposits with other banks	0	0
Loans, net	0	0
Financial Liabilities
Deposits	0	0
FHLB borrowings	0	0
Subordinated debt	0	0
Significant Other Observable Inputs (Level 2)
Financial Assets
HTM debt securities	477,706	489,560
Time deposits with other banks	2,471	13,455
Loans, net	169,100	0
Financial Liabilities
Deposits	0	0
FHLB borrowings	774,215	833,483
Subordinated debt	89,122	90,248
Significant Unobservable Inputs (Level 3)
Financial Assets
HTM debt securities	0	0
Time deposits with other banks	0	0
Loans, net	12,096,173	12,263,824
Financial Liabilities
Deposits	16,638,119	16,257,291
FHLB borrowings	0	0
Subordinated debt	0	0
Carrying Value
Financial Assets
HTM debt securities	576,155	586,178
Time deposits with other banks	2,490	14,424
Loans, net	12,462,965	12,449,181
Financial Liabilities
Deposits	16,637,949	16,256,343
FHLB borrowings	775,000	835,000
Subordinated debt	$ 95,338	$ 95,161