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Loans by Type (Schedule of the Aging of Loans by Loan Categories) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Participating Mortgage Loans [Line Items]
Nonaccrual
Loans	944,557	772,638
Commercial and Industrial [Member]
Participating Mortgage Loans [Line Items]
Nonaccrual
Loans	301,886	323,857
Paycheck protection program ("PPP") [Member]
Participating Mortgage Loans [Line Items]
Nonaccrual
Loans	172,211
Real Estate Commercial Mortgage [Member]
Participating Mortgage Loans [Line Items]
Nonaccrual
Loans	94,792	101,654
Real Estate Commercial Construction [Member]
Participating Mortgage Loans [Line Items]
Nonaccrual
Loans	23,795	25,299
Real Estate Faith-based Mortgage [Member]
Participating Mortgage Loans [Line Items]
Nonaccrual
Loans	331,419	305,826
Real Estate Faith-based Construction [Member]
Participating Mortgage Loans [Line Items]
Nonaccrual
Loans	20,452	15,945
Other Financing Receivable [Member]
Participating Mortgage Loans [Line Items]
Nonaccrual
Loans	2	57
Current [Member]
Participating Mortgage Loans [Line Items]
Current	944,557	772,638
Current [Member] | Commercial and Industrial [Member]
Participating Mortgage Loans [Line Items]
Current	301,886	323,857
Current [Member] | Paycheck protection program ("PPP") [Member]
Participating Mortgage Loans [Line Items]
Current	172,211
Current [Member] | Real Estate Commercial Mortgage [Member]
Participating Mortgage Loans [Line Items]
Current	94,792	101,654
Current [Member] | Real Estate Commercial Construction [Member]
Participating Mortgage Loans [Line Items]
Current	23,795	25,299
Current [Member] | Real Estate Faith-based Mortgage [Member]
Participating Mortgage Loans [Line Items]
Current	331,419	305,826
Current [Member] | Real Estate Faith-based Construction [Member]
Participating Mortgage Loans [Line Items]
Current	20,452	15,945
Current [Member] | Other Financing Receivable [Member]
Participating Mortgage Loans [Line Items]
Current	2	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

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Amount of financing receivable not past due.

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