Securities - Amortized Cost and Fair Value of Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Mar. 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
Held to maturity, amortized cost, total	624,650	$ 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, total	509,751	507,594
Amortized Cost
Due in less than one year	100
Due after one year through five years	6,586
Due after five years through ten years	9,697
Due after ten years	17,388
Available for sale loans with maturity date, amortized cost, total	33,771
Available for sale, amortized cost, total	2,799,759	2,434,389
Fair Value
Due in less than one year	97
Due after one year through five years	6,595
Due after five years through ten years	9,796
Due after ten years	15,563
Available for sale loans with maturity date, fair value, total	32,051
Available for sale, fair value, total	2,627,959	2,226,543
Residential mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities
Amortized Cost
Loans without single maturity date	536,529
Held to maturity, amortized cost, total	536,529	546,444
Fair Value
Loans without single maturity date	429,894
Held to maturity, fair value, total	429,894	428,824
Amortized Cost
Loans without single maturity date	2,119,865
Available for sale, amortized cost, total	2,119,865	1,777,274
Fair Value
Loans without single maturity date	1,962,218
Available for sale, fair value, total	1,962,218	1,587,975
Commercial mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities
Amortized Cost
Loans without single maturity date	88,121
Held to maturity, amortized cost, total	88,121	88,742
Fair Value
Loans without single maturity date	79,857
Held to maturity, fair value, total	79,857	78,770
Amortized Cost
Loans without single maturity date	249,246
Available for sale, amortized cost, total	249,246	206,537
Fair Value
Loans without single maturity date	243,636
Available for sale, fair value, total	243,636	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	124,038
Available for sale, amortized cost, total	124,038	129,475
Fair Value
Loans without single maturity date	117,207
Available for sale, fair value, total	117,207	121,242
Collateralized loan obligations
Amortized Cost
Loans without single maturity date	0
Fair Value
Loans without single maturity date	0
Amortized Cost
Loans without single maturity date	265,450
Available for sale, amortized cost, total	265,450	278,342
Fair Value
Loans without single maturity date	265,379
Available for sale, fair value, total	265,379	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	7,389
Available for sale, amortized cost, total	7,389	7,389
Fair Value
Loans without single maturity date	7,468
Available for sale, fair value, total	$ 7,468	$ 7,483