Income Taxes (Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019
Income Tax Disclosure [Abstract]
Deferred tax assets	$ 104,931	$ 50,851
Deferred tax liabilities	(65,715)	(12,212)
Total deferred tax assets	39,216	38,639
Valuation allowance	(39,416)	(38,772)
Net deferred tax liabilities	$ (200)	$ (133)