Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21463-112644

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Name:	us-gaap_TreasuryStockValueAcquiredCostMethod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Loss Per Share (Details 2) - USD ($)	3 Months Ended			12 Months Ended
Loss Per Share (Details 2) - USD ($)	May 05, 2018	Feb. 03, 2018	Apr. 29, 2017	Feb. 03, 2018	Jun. 26, 2012
Share repurchase program
Shares repurchased, aggregate cost	$ 17,587,000			$ 56,159,000
Share Repurchase Program
Share repurchase program
Value of common stock authorized to be repurchased					$ 500,000,000
Number of common stock repurchased (in shares)	1,118,808		1,485,195
Shares repurchased, aggregate cost	$ 17,600,000	$ 6,000,000	$ 17,800,000
Value of common stock remaining to be repurchased	$ 374,600,000