Basis of Presentation and Significant Accounting Policies - Schedule of Reconciliation of Cash And Cash Equivalents And Restricted Cash (Details) - USD ($) $ in Thousands		Mar. 29, 2019	Dec. 28, 2018	Mar. 30, 2018	Dec. 29, 2017
Accounting Policies [Abstract]
Cash and cash equivalents		$ 102,111	$ 103,877	$ 20,771
Restricted cash	[1]	122	122	121
Total cash, cash equivalents and restricted cash		$ 102,233	$ 103,999	$ 20,892	$ 18,641

[1] Included in other assets on the Condensed Consolidated Balance Sheets.