Investment Securities - Schedule of Debt Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Amortized Cost
Amortized Cost	$ 303,580	$ 245,871
Fair Value
Fair Value	303,810	247,633
U.S. Treasury and government sponsored entities
Amortized Cost
Within 1 year	32,013
1-5 years	171,862
5-10 years	20,949
Amortized Cost	224,824	173,318
Fair Value
Within 1 year	32,448
1-5 years	171,340
5-10 years	20,705
Fair Value	$ 224,493	174,601
Weighted Average Yield
Within 1 year	2.21%
1-5 years	0.70%
5-10 years	0.76%
Weighted Average Yield	0.92%
Corporate bonds
Amortized Cost
Within 1 year	$ 2,241
1-5 years	37,705
5-10 years	10,000
Amortized Cost	29,946	29,951
Amortized Cost	49,946
Fair Value
Within 1 year	2,253
1-5 years	38,109
5-10 years	10,000
Fair Value	30,456	30,492
Fair Value	$ 50,362
Weighted Average Yield
Within 1 year	1.17%
1-5 years	2.45%
5-10 years	5.00%
Weighted Average Yield	2.90%
Collateralized loan obligations
Amortized Cost
5-10 years	$ 47,990
Amortized Cost	47,990	41,782
Fair Value
5-10 years	48,005
Fair Value	$ 48,005	41,684
Weighted Average Yield
5-10 years	1.55%
Weighted Average Yield	1.55%
Municipal securities
Amortized Cost
1-5 years	$ 820
Amortized Cost	820	820
Fair Value
1-5 years	856
Fair Value	$ 856	$ 856
Weighted Average Yield
1-5 years	2.14%
Weighted Average Yield	2.14%