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Transactions With Affiliates (Details) - USD ($)	12 Months Ended
Transactions With Affiliates (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Related Party Transaction [Line Items]
Deposits	$ 5,052,030,000	$ 3,935,714,000
Affiliated Entity [Member]
Related Party Transaction [Line Items]
Deposits	0	2,600,000
Directors, Executive Officers, Principal Stockholders and Affiliates [Member]
Related Party Transaction [Line Items]
Due from related parties	2,300,000	2,000,000
J.V.B. Financial Group, LLC (JVB) [Member]
Related Party Transaction [Line Items]
Securities under agreements to resell, outstanding amount	0	0
J.V.B. Financial Group, LLC (JVB) [Member] \| SBA Loan [Member]
Related Party Transaction [Line Items]
Securities under agreements to resell, outstanding amount	2,300,000
Duane Morris LLP [Member]
Related Party Transaction [Line Items]
Payment for legal services	$ 1,100,000	$ 3,000,000	$ 3,500,000