Other Charges, Net - Additional Information (Details)	1 Months Ended	4 Months Ended	12 Months Ended
	Sep. 30, 2014 USD ($)	Jan. 31, 2015 USD ($)	Jan. 28, 2017 USD ($)	Jan. 30, 2016 USD ($)	Sep. 30, 2014 USD ($)	Dec. 19, 2016 USD ($) Agreement
Proposed Business Combinations And Management And Organizational Changes And Facilities Relocations And Fiscal Year Change [Line Items]
Charges related to proposed business combination			$ 3,154,000	$ 61,000	$ 1,045,000
Number of consulting agreements | Agreement						2
Payments due under consulting agreements			0
Charges related to management and organizational changes		$ 2,951,000	$ 1,760,000	4,196,000	4,256,000
Pretax income from gain realized on the sale of facilities	$ 4,110,000				4,110,000
Charges (income) related to relocation of facilities		1,158,000		2,695,000	$ (2,072,000)
Charges related to change to retail calendar-based fiscal year		$ 1,245,000		$ 27,000
Consulting Agreement One
Proposed Business Combinations And Management And Organizational Changes And Facilities Relocations And Fiscal Year Change [Line Items]
Potential consulting fee receivable for each fully executed real estate lease						$ 65,000
Consulting Agreement Two | Maximum
Proposed Business Combinations And Management And Organizational Changes And Facilities Relocations And Fiscal Year Change [Line Items]
Potential consulting fee receivable for each fully completed construction project						$ 34,000