Fair Value Level 3 Financial Instruments Measured at Fair Value on a Non-recurring Basis (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Provision for Loan, Lease, and Other Losses	$ 0	$ 2,778
Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring | Portion at Other than Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Adjustment	11,100
Provision for Loan, Lease, and Other Losses	$ 2,800