Securities - Schedule of Amortized Cost and Fair Value of Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Amortized Cost
Due in less than one year	$ 0
Due after one year through five years	0
Due after five years through ten years	0
Due after ten years	0
Held to maturity loans with maturity date, amortized cost, total	0
HTM, amortized cost	586,178	$ 635,186
Fair Value
Due in less than one year	0
Due after one year through five years	0
Due after five years through ten years	0
Due after ten years	0
Held to maturity loans with maturity date, fair value, total	0
Held to maturity, fair value	489,560	507,594
Amortized Cost
Due in less than one year	7,571
Due after one year through five years	9,888
Due after five years through ten years	36,407
Due after ten years	337,382
Available for sale loans with maturity date, amortized cost, total	391,248
AFS, amortized cost	5,266,294	2,434,389
Fair Value
Due in less than one year	7,584
Due after one year through five years	9,887
Due after five years through ten years	35,602
Due after ten years	336,220
Available for sale loans with maturity date, fair value, total	389,293
Securities AFS (at fair value)	5,164,567	2,226,543
Residential mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities
Amortized Cost
Loans without single maturity date	498,931
HTM, amortized cost	498,931	546,444
Fair Value
Loans without single maturity date	408,235
Held to maturity, fair value	408,235	428,824
Amortized Cost
Loans without single maturity date	3,681,499
AFS, amortized cost	3,681,499	1,777,274
Fair Value
Loans without single maturity date	3,587,499
Securities AFS (at fair value)	3,587,499	1,587,975
Commercial mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities
Amortized Cost
Loans without single maturity date	87,247
HTM, amortized cost	87,247	88,742
Fair Value
Loans without single maturity date	81,325
Held to maturity, fair value	81,325	78,770
Amortized Cost
Loans without single maturity date	395,165
AFS, amortized cost	395,165	206,537
Fair Value
Loans without single maturity date	393,873
Securities AFS (at fair value)	393,873	197,449
Private mortgage-backed securities and collateralized mortgage obligations
Amortized Cost
Loans without single maturity date	0
Fair Value
Loans without single maturity date	0
Amortized Cost
Loans without single maturity date	131,846
AFS, amortized cost	131,846	129,475
Fair Value
Loans without single maturity date	127,397
Securities AFS (at fair value)	127,397	121,242
CLOs
Amortized Cost
Loans without single maturity date	0
Fair Value
Loans without single maturity date	0
Amortized Cost
Loans without single maturity date	423,864
AFS, amortized cost	423,864	278,342
Fair Value
Loans without single maturity date	423,988
Securities AFS (at fair value)	423,988	278,964
Other debt securities
Amortized Cost
Loans without single maturity date	0
Fair Value
Loans without single maturity date	0
Amortized Cost
Loans without single maturity date	242,672
AFS, amortized cost	242,672	7,389
Fair Value
Loans without single maturity date	242,517
Securities AFS (at fair value)	$ 242,517	$ 7,483