Allowance for Credit Losses (Note Restructurings During Period) (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020 USD ($) loans	Jun. 30, 2019 USD ($) loans	Jun. 30, 2020 USD ($) loans	Jun. 30, 2019 USD ($) loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loans	146	115	317	239
Recorded investment at period end | $	$ 37,040	$ 17,374	$ 54,014	$ 24,522
Number of Loans | loans	43	62	109	120
Recorded investment at period end | $	$ 6,237	$ 5,901	$ 8,896	$ 12,330
Interest only period provided
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loans	7	4	17	4
Recorded investment at period end | $	$ 15,352	$ 4,343	$ 19,328	$ 4,343
Number of Loans | loans	3	0	3	2
Recorded investment at period end | $	$ 3,398	$ 0	$ 3,398	$ 3,203
Loan term extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loans	27	4	33	8
Recorded investment at period end | $	$ 2,925	$ 998	$ 3,657	$ 1,437
Number of Loans | loans	13	2	16	4
Recorded investment at period end | $	$ 1,459	$ 183	$ 1,667	$ 534
Below market interest rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loans	69	67	157	125
Recorded investment at period end | $	$ 17,291	$ 6,979	$ 25,389	$ 11,063
Number of Loans | loans	18	30	46	61
Recorded investment at period end | $	$ 1,069	$ 2,612	$ 2,324	$ 4,645
Discharged from bankruptcy
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loans	43	40	110	102
Recorded investment at period end | $	$ 1,472	$ 5,054	$ 5,640	$ 7,679
Number of Loans | loans	9	30	44	53
Recorded investment at period end | $	$ 311	$ 3,106	$ 1,507	$ 3,948