Fair Value of Financial Assets and Liabilities (Details) - USD ($) $ in Thousands	Oct. 27, 2017	Jan. 27, 2017	Oct. 28, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Restricted cash	$ 1,640	$ 3,300	$ 3,300
Long-term Debt	496,975	500,838	502,125
Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Restricted cash	1,600	3,300	3,300
Term Loan Facility | Secured debt | Reported Value Measurement [Member] | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Secured Debt	$ 496,975	$ 500,838	$ 502,125