Investment Securities - Schedule of Investments Classified by Contractual Maturity Date (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Marketable Securities [Abstract]
Available-for-sale, Due in one year or less, Amortized Cost	$ 4,393
Available-for-sale, Due after one year through five years, Amortized Cost	17,894
Available-for-sale, Due after five years through ten years, Amortized Cost	69,714
Available-for-sale, Due after ten years, Amortized Cost	109,409
Available-for-sale, MBS/CMO, Amortized Cost	347,372
Available-for-Sale Securities, Amortized Cost	548,782	$ 277,323
Available-for-sale, Due in one year or less, Fair Value	4,421
Available-for-sale, Due after one year through five years, Fair Value	17,969
Available-for-sale, Due after five years through ten years, Fair Value	72,411
Available-for-sale, Due after ten years, Fair Value	114,160
Available-for-sale,MBS/CMO, Fair Value	358,566
Available-for-sale, Fair Value	$ 567,527	$ 283,448

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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