Summary of Significant Accounting Policies - Summary of Impact on Balance Sheet of New Accounting Pronouncements (Details) - USD ($) $ in Thousands	Dec. 25, 2019	Dec. 26, 2018	Dec. 27, 2017	Dec. 28, 2016
Assets
Total assets	$ 624,752	$ 450,226
Current assets:
Deferred tax assets	3,709	11,709
Current liabilities:
Other accrued expenses and current liabilities	28,597	51,764
Total current liabilities	73,959	82,903
Other noncurrent liabilities	5,679	20,024
Total liabilities	379,186	184,990
Accumulated deficit	(85,988)	(110,888)
Total stockholders' equity	245,566	265,236	$ 274,950	$ 265,182
Total liabilities and stockholder’s equity	$ 624,752	$ 450,226