Fair Value Measurements - Schedule of Book Value and Estimated Fair Value of Financial Instruments Not Recorded at Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financial Assets:
Debt securities held-to-maturity	$ 1,068,438	$ 1,110,041
Restricted equity investments	93,766	109,278
Financial Liabilities:
Time deposits	2,445,422	1,542,020
Securities sold under agreements to repurchase with customers	73,148	69,097
Level 1 Inputs
Financial Assets:
Cash and due from banks	153,718	167,946
Debt securities held-to-maturity	0	0
Restricted equity investments	0	0
Loans receivable, net and loans held-for-sale	0	0
Financial Liabilities:
Deposits other than time deposits	0	0
Time deposits	0	0
FHLB advances and other borrowings	0	0
Securities sold under agreements to repurchase with customers	73,148	69,097
Level 2 Inputs
Financial Assets:
Cash and due from banks	0	0
Debt securities held-to-maturity	1,068,438	1,097,984
Restricted equity investments	0	0
Loans receivable, net and loans held-for-sale	0	0
Financial Liabilities:
Deposits other than time deposits	7,989,527	8,133,186
Time deposits	2,421,058	1,504,601
FHLB advances and other borrowings	1,008,351	1,416,384
Securities sold under agreements to repurchase with customers	0	0
Level 3 Inputs
Financial Assets:
Cash and due from banks	0	0
Debt securities held-to-maturity	0	12,057
Restricted equity investments	93,766	109,278
Loans receivable, net and loans held-for-sale	9,606,498	9,103,137
Financial Liabilities:
Deposits other than time deposits	0	0
Time deposits	0	0
FHLB advances and other borrowings	0	0
Securities sold under agreements to repurchase with customers	0	0
Book Value
Financial Assets:
Cash and due from banks	153,718	167,946
Debt securities held-to-maturity	1,159,735	1,221,138
Restricted equity investments	93,766	109,278
Loans receivable, net and loans held-for-sale	10,141,887	9,869,408
Financial Liabilities:
Deposits other than time deposits	7,989,527	8,133,186
Time deposits	2,445,422	1,542,020
FHLB advances and other borrowings	1,045,092	1,406,569
Securities sold under agreements to repurchase with customers	$ 73,148	$ 69,097