Summary of Significant Accounting Policies - New Accounting Standards (Details Textual) - USD ($) $ in Thousands	Jan. 02, 2021	Dec. 31, 2019	Dec. 28, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Retained Earnings	$ 2,350,333		$ 1,761,688
Accounting Standards Update 2016-13 [Member] | Cumulative effect adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Retained Earnings		$ (2,000)