Summary of Significant Accounting Policies (Recently Adopted Accounting Standards) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right of use assets	$ 22,027
Lease liabilities	$ 22,527
Adjustment | ASU 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right of use assets		$ 20,618
Lease liabilities		$ 20,856