Loans by Type (Schedule of the Aging of Loans by Loan Categories) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Participating Mortgage Loans [Line Items]
Nonaccrual
Loans	963,726	772,638
Commercial and Industrial [Member]
Participating Mortgage Loans [Line Items]
Nonaccrual
Loans	341,888	323,857
Paycheck protection program ("PPP") [Member]
Participating Mortgage Loans [Line Items]
Nonaccrual
Loans	172,563
Real Estate Commercial Mortgage [Member]
Participating Mortgage Loans [Line Items]
Nonaccrual
Loans	95,865	101,654
Real Estate Commercial Construction [Member]
Participating Mortgage Loans [Line Items]
Nonaccrual
Loans	22,219	25,299
Real Estate Faith-based Mortgage [Member]
Participating Mortgage Loans [Line Items]
Nonaccrual
Loans	302,895	305,826
Real Estate Faith-based Construction [Member]
Participating Mortgage Loans [Line Items]
Nonaccrual
Loans	28,293	15,945
Other Financing Receivable [Member]
Participating Mortgage Loans [Line Items]
Nonaccrual
Loans	3	57
Current [Member]
Participating Mortgage Loans [Line Items]
Current	963,726	772,638
Current [Member] | Commercial and Industrial [Member]
Participating Mortgage Loans [Line Items]
Current	341,888	323,857
Current [Member] | Paycheck protection program ("PPP") [Member]
Participating Mortgage Loans [Line Items]
Current	172,563
Current [Member] | Real Estate Commercial Mortgage [Member]
Participating Mortgage Loans [Line Items]
Current	95,865	101,654
Current [Member] | Real Estate Commercial Construction [Member]
Participating Mortgage Loans [Line Items]
Current	22,219	25,299
Current [Member] | Real Estate Faith-based Mortgage [Member]
Participating Mortgage Loans [Line Items]
Current	302,895	305,826
Current [Member] | Real Estate Faith-based Construction [Member]
Participating Mortgage Loans [Line Items]
Current	28,293	15,945
Current [Member] | Other Financing Receivable [Member]
Participating Mortgage Loans [Line Items]
Current	3	57
30 to 59 Days Past Due [Member]
Participating Mortgage Loans [Line Items]
Past due
30 to 59 Days Past Due [Member] | Commercial and Industrial [Member]
Participating Mortgage Loans [Line Items]
Past due
30 to 59 Days Past Due [Member] | Paycheck protection program ("PPP") [Member]
Participating Mortgage Loans [Line Items]
Past due
30 to 59 Days Past Due [Member] | Real Estate Commercial Mortgage [Member]
Participating Mortgage Loans [Line Items]
Past due
30 to 59 Days Past Due [Member] | Real Estate Commercial Construction [Member]
Participating Mortgage Loans [Line Items]
Past due
30 to 59 Days Past Due [Member] | Real Estate Faith-based Mortgage [Member]
Participating Mortgage Loans [Line Items]
Past due
30 to 59 Days Past Due [Member] | Real Estate Faith-based Construction [Member]
Participating Mortgage Loans [Line Items]
Past due
30 to 59 Days Past Due [Member] | Other Financing Receivable [Member]
Participating Mortgage Loans [Line Items]
Past due
60 to 89 Days Past Due [Member]
Participating Mortgage Loans [Line Items]
Past due
60 to 89 Days Past Due [Member] | Commercial and Industrial [Member]
Participating Mortgage Loans [Line Items]
Past due
60 to 89 Days Past Due [Member] | Paycheck protection program ("PPP") [Member]
Participating Mortgage Loans [Line Items]
Past due
60 to 89 Days Past Due [Member] | Real Estate Commercial Mortgage [Member]
Participating Mortgage Loans [Line Items]
Past due
60 to 89 Days Past Due [Member] | Real Estate Commercial Construction [Member]
Participating Mortgage Loans [Line Items]
Past due
60 to 89 Days Past Due [Member] | Real Estate Faith-based Mortgage [Member]
Participating Mortgage Loans [Line Items]
Past due
60 to 89 Days Past Due [Member] | Real Estate Faith-based Construction [Member]
Participating Mortgage Loans [Line Items]
Past due
60 to 89 Days Past Due [Member] | Other Financing Receivable [Member]
Participating Mortgage Loans [Line Items]
Past due
90 Days and Over [Member]
Participating Mortgage Loans [Line Items]
Past due
90 Days and Over [Member] | Commercial and Industrial [Member]
Participating Mortgage Loans [Line Items]
Past due
90 Days and Over [Member] | Paycheck protection program ("PPP") [Member]
Participating Mortgage Loans [Line Items]
Past due
90 Days and Over [Member] | Real Estate Commercial Mortgage [Member]
Participating Mortgage Loans [Line Items]
Past due
90 Days and Over [Member] | Real Estate Commercial Construction [Member]
Participating Mortgage Loans [Line Items]
Past due
90 Days and Over [Member] | Real Estate Faith-based Mortgage [Member]
Participating Mortgage Loans [Line Items]
Past due
90 Days and Over [Member] | Real Estate Faith-based Construction [Member]
Participating Mortgage Loans [Line Items]
Past due
90 Days and Over [Member] | Other Financing Receivable [Member]
Participating Mortgage Loans [Line Items]
Past due