Recent Accounting Pronouncements (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 30, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Prepaids and other current assets	$ 5,780	$ 4,669
Accrued expenses	$ 31,076	31,360
Previously Reported [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Prepaids and other current assets		3,600
Accrued expenses		30,291
Restatement Adjustment [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Prepaids and other current assets		1,069
Accrued expenses		$ 1,069