Summary of Significant Accounting Policies - Reconciliation of Cash Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	Dec. 29, 2018	Dec. 30, 2017		Dec. 31, 2016	[1]	Dec. 26, 2015	[1]
Accounting Policies [Abstract]
Cash and cash equivalents	$ 72,616	$ 120,269
Restricted cash included within other current assets	4,414	6,189
Restricted cash included within other assets	108	105
Total cash, cash equivalents, and restricted cash	$ 77,138	$ 126,563	[1]	$ 360,469		$ 278,664

[1] The Consolidated Statements of Cash Flows for prior periods have been adjusted to reflect the adoption of ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash. The Consolidated Statements of Cash Flows reflect the changes during the periods in the total of cash, cash equivalents, and restricted cash. Therefore, restricted cash activity is included with cash when reconciling the beginning-of-period and end-of-period total amounts shown. Refer to Note 1 for further discussion.