Securities - Schedule of Fair Value Of Available For Sale Securities By Contractual Maturities (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
AFS securities
Due in one year or less, Amortized Cost	$ 57,152	$ 55,876
Due in one year or less, Fair value	56,999	55,593
Due after one year to five years, Amortized Cost	713,774	560,992
Due after one year to five years, Fair value	707,333	522,979
Due after five to ten years, Amortized Cost	113,278	335,084
Due after five to ten years, Fair value	103,609	296,864
Due after ten years, Amortized Cost	3,533,704	3,826,692
Due after ten years, Fair value	3,135,988	3,146,162
Amortized Cost	4,417,908	4,778,644
Fair Value	4,003,929	4,021,598
HTM securities
Due in one year or less, Amortized Cost	0	0
Due in one year or less, Fair value	0	0
Due after one year to five years, Amortized Cost	132,445	133,168
Due after one year to five years, Fair value	122,957	121,471
Due after five to ten years, Amortized Cost	73,598	55,838
Due after five to ten years, Fair value	67,113	47,982
Due after ten years, Amortized Cost	234,807	231,709
Due after ten years, Fair value	211,012	202,271
Amortized Cost	440,850	420,715
Fair Value	401,082	371,724
Total
Due in one year or less, Amortized Cost	57,152	55,876
Due in one year or less, Fair value	56,999	55,593
Due after one year to five years, Amortized Cost	846,219	694,160
Due after one year to five years, Fair value	830,290	644,450
Due after five to ten years, Amortized Cost	186,876	390,922
Due after five to ten years, Fair value	170,722	344,846
Due after ten years, Amortized Cost	3,768,511	4,058,401
Due after ten years, Fair value	3,347,000	3,348,433
Amortized Cost	4,858,758	5,199,359
Fair Value	4,405,011	4,393,322
Government-sponsored residential mortgage-backed securities
AFS securities
Due in one year or less, Amortized Cost	341	561
Due in one year or less, Fair value	339	557
Due after one year to five years, Amortized Cost	19,001	21,535
Due after one year to five years, Fair value	18,564	20,940
Due after five to ten years, Amortized Cost	12,184	13,212
Due after five to ten years, Fair value	11,425	12,268
Due after ten years, Amortized Cost	2,909,602	3,064,020
Due after ten years, Fair value	2,617,310	2,528,130
Amortized Cost	2,941,128	3,099,328
Fair Value	2,647,638	2,561,895
HTM securities
Due in one year or less, Amortized Cost	0	0
Due in one year or less, Fair value	0	0
Due after one year to five years, Amortized Cost	0	0
Due after one year to five years, Fair value	0	0
Due after five to ten years, Amortized Cost	0	0
Due after five to ten years, Fair value	0	0
Due after ten years, Amortized Cost	227,145	231,709
Due after ten years, Fair value	203,492	202,271
Amortized Cost	227,145	231,709
Fair Value	203,492	202,271
Government-sponsored commercial mortgage-backed securities
AFS securities
Due in one year or less, Amortized Cost	0	0
Due in one year or less, Fair value	0	0
Due after one year to five years, Amortized Cost	611,697	436,515
Due after one year to five years, Fair value	606,580	404,181
Due after five to ten years, Amortized Cost	50,396	270,546
Due after five to ten years, Fair value	44,396	235,853
Due after ten years, Amortized Cost	518,631	655,458
Due after ten years, Fair value	425,793	521,077
Amortized Cost	1,180,724	1,362,519
Fair Value	1,076,769	1,161,111
HTM securities
Due in one year or less, Amortized Cost	0	0
Due in one year or less, Fair value	0	0
Due after one year to five years, Amortized Cost	132,445	133,168
Due after one year to five years, Fair value	122,957	121,471
Due after five to ten years, Amortized Cost	55,598	55,838
Due after five to ten years, Fair value	48,888	47,982
Due after ten years, Amortized Cost	0	0
Due after ten years, Fair value	0	0
Amortized Cost	188,043	189,006
Fair Value	171,845	169,453
U.S. Agency bonds
AFS securities
Due in one year or less, Amortized Cost		0
Due in one year or less, Fair value		0
Due after one year to five years, Amortized Cost		19,608
Due after one year to five years, Fair value		17,672
Due after five to ten years, Amortized Cost		0
Due after five to ten years, Fair value		0
Due after ten years, Amortized Cost		0
Due after ten years, Fair value		0
Amortized Cost		19,608
Fair Value		17,672
U.S. Treasury securities
AFS securities
Due in one year or less, Amortized Cost	49,970	49,947
Due in one year or less, Fair value	49,875	49,717
Due after one year to five years, Amortized Cost	50,049	49,837
Due after one year to five years, Fair value	50,244	47,902
Due after five to ten years, Amortized Cost	0	0
Due after five to ten years, Fair value	0	0
Due after ten years, Amortized Cost	0	0
Due after ten years, Fair value	0	0
Amortized Cost	100,019	99,784
Fair Value	100,119	97,619
State and municipal bonds and obligations
AFS securities
Due in one year or less, Amortized Cost	6,841	5,368
Due in one year or less, Fair value	6,785	5,319
Due after one year to five years, Amortized Cost	33,027	33,497
Due after one year to five years, Fair value	31,945	32,284
Due after five to ten years, Amortized Cost	50,698	51,326
Due after five to ten years, Fair value	47,788	48,743
Due after ten years, Amortized Cost	105,471	107,214
Due after ten years, Fair value	92,885	96,955
Amortized Cost	196,037	197,405
Fair Value	179,403	$ 183,301
HTM securities
Due in one year or less, Amortized Cost	0
Due in one year or less, Fair value	0
Due after one year to five years, Amortized Cost	0
Due after one year to five years, Fair value	0
Due after five to ten years, Amortized Cost	0
Due after five to ten years, Fair value	0
Due after ten years, Amortized Cost	7,662
Due after ten years, Fair value	7,520
Amortized Cost	7,662
Fair Value	7,520
Corporate note
HTM securities
Due in one year or less, Amortized Cost	0
Due in one year or less, Fair value	0
Due after one year to five years, Amortized Cost	0
Due after one year to five years, Fair value	0
Due after five to ten years, Amortized Cost	18,000
Due after five to ten years, Fair value	18,225
Due after ten years, Amortized Cost	0
Due after ten years, Fair value	0
Amortized Cost	18,000
Fair Value	$ 18,225