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PROPERTY AND EQUIPMENT (Narrative) (Details) |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Dec. 04, 2015 ft² property | Jan. 31, 2017 USD ($) | Aug. 31, 2017 USD ($) warehouse | Aug. 31, 2016 USD ($)
Property, Plant and Equipment [Line Items] |  |  |  |
Number of stores | warehouse |  |  | 39 |
Property and equipment, net |  |  | $ 557,829,000 | $ 473,045,000
Accounts payable |  |  | 272,248,000 | 267,173,000
Other accrued expenses |  |  | 26,483,000 | 24,880,000
Construction In Progress [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Accounts payable |  |  | 612,000 | 476,000
Other accrued expenses |  |  | $ 3,100,000 | $ 1,500,000
Colombia [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Number of stores | warehouse |  |  | 7 |
Honduras [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Number of stores | warehouse |  |  | 3 |
Option to acquire, Number of properties | property | 2 |  |  |
Area of land | ft² | 59,353 |  |  |
Property and equipment, net |  |  | $ 1,900,000 |
Miami-Dade County, Florida [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Purchase price |  | $ 46,000,000 |  |
Minimum [Member] | Fixtures And Equipment [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Useful life |  |  | 3 years |
Minimum [Member] | Building Improvements [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Useful life |  |  | 10 years |
Maximum [Member] | Fixtures And Equipment [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Useful life |  |  | 15 years |
Maximum [Member] | Building Improvements [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Useful life |  |  | 25 years |

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- Definition Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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