Summary of Significant Accounting Policies (Details) $ in Thousands		3 Months Ended
	Apr. 01, 2020 USD ($)	Mar. 31, 2020 USD ($) segment	Dec. 31, 2019 USD ($)	Mar. 31, 2019 USD ($)	Jan. 01, 2019 USD ($)	Dec. 31, 2018 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of operating segments | segment		1
Estimated allowance for credit losses (ACL)		$ 38,340	$ 33,760	$ 36,520		$ 37,810
Operating lease, right-of-use asset		$ 3,110	$ 3,200
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Additional operating liabilities					$ 3,580
Operating lease, right-of-use asset					$ 3,580
Cumulative Effective, Period Of Adoption, Estimated Adjustment [Member] | Minimum [Member] | Scenario, Forecast
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Estimated overall increase in Allowance for Credit Losses (ACL) for loans	$ 3,000
Anticipated unfunded commitments liability	1,000
Cumulative Effective, Period Of Adoption, Estimated Adjustment [Member] | Maximum [Member] | Scenario, Forecast
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Estimated overall increase in Allowance for Credit Losses (ACL) for loans	4,000
Anticipated unfunded commitments liability	2,000
Cumulative Effective, Period Of Adoption, Estimated Finalized Adjustment [Member] | Minimum [Member] | Scenario, Forecast
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Anticipated unfunded commitments liability	4,000
Estimated allowance for credit losses (ACL)	41,000
Cumulative Effective, Period Of Adoption, Estimated Finalized Adjustment [Member] | Maximum [Member] | Scenario, Forecast
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Anticipated unfunded commitments liability	5,000
Estimated allowance for credit losses (ACL)	$ 44,000