v3.25.2
Securities, Held to Maturity (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Held-to-maturity securities, fair value to amortized cost [Abstract]          
Amortized cost $ 809,664   $ 809,664   $ 842,921
Unrealized gains 91   91   42
Unrealized losses (74,368)   (74,368)   (93,018)
Estimated fair value 735,387   735,387   749,945
Transactions of HTM securities [Abstract]          
Gains from calls on HTM securities 0 $ 0 0 $ 0  
Asset Pledged as Collateral [Member] | Public Deposits or Other Purposes [Member]          
Securities pledged [Abstract]          
AFS and HTM securities 1,760,000   1,760,000   1,600,000
Asset Pledged as Collateral [Member] | Securities Sold under Repurchase Agreements [Member]          
Securities pledged [Abstract]          
AFS and HTM securities 219,500   219,500   234,200
Federal Agency [Member]          
Held-to-maturity securities, fair value to amortized cost [Abstract]          
Amortized cost 100,000   100,000   100,000
Unrealized gains 0   0   0
Unrealized losses (12,829)   (12,829)   (16,656)
Estimated fair value 87,171   87,171   83,344
Mortgage-Backed, Government Sponsored Enterprises [Member]          
Held-to-maturity securities, fair value to amortized cost [Abstract]          
Amortized cost 198,957   198,957   208,579
Unrealized gains 0   0   0
Unrealized losses (27,343)   (27,343)   (34,349)
Estimated fair value 171,614   171,614   174,230
Mortgage-Backed, U.S. Government Agency Securities [Member]          
Held-to-maturity securities, fair value to amortized cost [Abstract]          
Amortized cost 14,105   14,105   15,611
Unrealized gains 1   1   1
Unrealized losses (51)   (51)   (516)
Estimated fair value 14,055   14,055   15,096
Collateralized Mortgage Obligations, Government-Sponsored Enterprises [Member]          
Held-to-maturity securities, fair value to amortized cost [Abstract]          
Amortized cost 158,778   158,778   168,018
Unrealized gains 88   88   0
Unrealized losses (8,183)   (8,183)   (11,554)
Estimated fair value 150,683   150,683   156,464
Collateralized Mortgage Obligations, U.S. Government Agency Securities [Member]          
Held-to-maturity securities, fair value to amortized cost [Abstract]          
Amortized cost 59,142   59,142   60,906
Unrealized gains 0   0   0
Unrealized losses (10,091)   (10,091)   (11,245)
Estimated fair value 49,051   49,051   49,661
State & Municipal [Member]          
Held-to-maturity securities, fair value to amortized cost [Abstract]          
Amortized cost 278,682   278,682   289,807
Unrealized gains 2   2   41
Unrealized losses (15,871)   (15,871)   (18,698)
Estimated fair value $ 262,813   $ 262,813   $ 271,150