Fair Value (Details) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended
	Oct. 28, 2017	Jul. 29, 2017	Apr. 29, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016
Company's assets and liabilities measured at fair value on a nonrecurring basis
Total Losses	$ 510			$ 579	$ 687	$ 5,032
Fair Value Measurements Nonrecurring
Company's assets and liabilities measured at fair value on a nonrecurring basis
Long-Lived Assets Held and Used	251	$ 0	$ 14		251
Total Losses	510	58	119
Fair Value Measurements Nonrecurring | Level 1
Company's assets and liabilities measured at fair value on a nonrecurring basis
Long-Lived Assets Held and Used	0	0	0		0
Fair Value Measurements Nonrecurring | Level 2
Company's assets and liabilities measured at fair value on a nonrecurring basis
Long-Lived Assets Held and Used	0	0	0		0
Fair Value Measurements Nonrecurring | Level 3
Company's assets and liabilities measured at fair value on a nonrecurring basis
Long-Lived Assets Held and Used	$ 251	$ 0	$ 14		$ 251