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Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Feb. 03, 2018	Dec. 31, 2017	Jan. 28, 2017	Jan. 30, 2016
Changes in the allowance for inventory shrinkage
Federal statutory tax rate		33.70%	35.00%
Forecast
Changes in the allowance for inventory shrinkage
Federal statutory tax rate	21.00%
Allowance for Inventory Shrinkage
Changes in the allowance for inventory shrinkage
Balance at the beginning of the period		$ 3,099		$ 2,584	$ 2,646
Additions charged to costs and expenses		11,103		9,351	7,873
Deductions		(10,698)		(8,836)	(7,935)
Balance at the end of the period		3,504		3,099	2,584
Allowance for Deferred Tax Assets
Changes in the allowance for inventory shrinkage
Balance at the beginning of the period		1,272		1,272	1,272
Additions charged to costs and expenses		79
Impact of tax reform		273
Balance at the end of the period		$ 1,624		$ 1,272	$ 1,272

X

- Definition

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 due to impact of tax reform.

+ References

No definition available.

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- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 6.I)
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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 235
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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.

+ References

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-Name Accounting Standards Codification
-Topic 235
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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.

+ References

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