Operations and Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Jan. 01, 2019
Property, Plant and Equipment [Line Items]
Operating lease right-of-use asset	$ 80,000
Lease liability	$ 95,887
Minimum
Property, Plant and Equipment [Line Items]
Useful life	3 years
Useful life	1 year
Maximum
Property, Plant and Equipment [Line Items]
Useful life	5 years
Useful life	5 years
Accounting Standards Update 2016-02
Property, Plant and Equipment [Line Items]
Operating lease right-of-use asset		$ 64,000
Lease liability		$ 74,000