Securities - Schedule of Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Amortized Cost
Due in one year or less	$ 3,849
Due after one year through five years	19,898
Due after five years through ten years	77,761
Due after ten years	875,496
Amortized Cost	2,088,464	$ 1,869,198
Fair Value
Due in one year or less	3,856
Due after one year through five years	20,212
Due after five years through ten years	76,616
Due after ten years	731,018
Fair Value	1,821,735	1,889,617
MBS/CMO
Amortized Cost
Securities without single maturity	876,135
Amortized Cost	876,135	797,693
Fair Value
Securities without single maturity	780,025
Fair Value	780,025	791,950
US Gov’t Sponsored Entities & Agencies
Amortized Cost
Securities without single maturity	235,325
Amortized Cost	235,325	175,457
Fair Value
Securities without single maturity	210,008
Fair Value	$ 210,008	$ 171,961

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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