Valuation and Qualifying Accounts (Detail) - USD ($) $ in Thousands	12 Months Ended
Jan. 28, 2017	Jan. 30, 2016	Jan. 31, 2015
Sales Return Reserve
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance Beginning of period	$ 41,723	$ 35,476	$ 37,429
Amount Changed to Net Income	1,482,877	1,497,963	1,348,933
Write-Offs Against Reserve	1,481,633	1,491,716	1,350,886
Balance End of Period	42,967	41,723	35,476
Casualty Insurance Reserve
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance Beginning of period	19,686	14,303	14,696
Amount Changed to Net Income	87,110	80,738	72,604
Write-Offs Against Reserve	75,986	75,355	72,997
Balance End of Period	$ 30,810	$ 19,686	$ 14,303

Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SX 210.12-09)
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690

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Amount of increase in the allowances and reserves, which consist of the valuation and qualifying accounts that are either netted against the cost of an asset or that reflect a liability established to represent expected future costs, from charges to costs and expenses.

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Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively.

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