Summary of Significant Accounting Policies and New Accounting Pronouncements - New or Recently Adopted Accounting Pronouncements (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right-of-use assets	$ 22,406
Present value of future minimum lease payments	$ 23,409
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right-of-use assets		$ 10,000
Present value of future minimum lease payments		$ 11,000