Summary of Significant Accounting Policies - Recent Accounting Standards Adopted (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2019	Dec. 30, 2017
Recent Accounting Standards
CRA elected package of practical expedients	true
Operating lease right-of-use assets	$ 130,173
Recognize lease liabilities	159,398
ASC 606
Recent Accounting Standards
Cumulative effect of a change in accounting principle		$ 366
ASU 2016-02
Recent Accounting Standards
Operating lease right-of-use assets	82,300
Recognize lease liabilities	$ 106,800