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Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 30, 2017
Accounting Policies [Abstract] |
Estimated useful lives of property, plant and equipment | Property and Equipment Property and equipment are carried at cost. Depreciation is recorded using the straight-line method over the estimated useful lives of the assets. Improvements to leased premises are amortized using the straight-line method over the initial term of the lease or the useful life of the improvement, whichever is less. The following estimated useful lives are generally applied:
| Life
Buildings | 30 – 35 years
Leasehold and building improvements | 1 – 35 years
Furniture, fixtures and equipment | 5 – 10 years
Computer software and hardware | 3 – 5 years
Industrial Revenue Bonds | The terms and amounts authorized and drawn under each industrial revenue bond agreement are outlined as follows, as of December 30, 2017:
|  | Bond Term | Bond Authorized Amount (in millions) | Amount Drawn (in millions)
Franklin, Kentucky Distribution Center |  | 30 years | $54.0 | $51.8
Macon, Georgia Distribution Center |  | 15 years | $58.0 | $49.9
Brentwood, Tennessee Store Support Center |  | 10 years | $78.0 | $75.3

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- Definition Schedule which outlines the terms of certain industrial revenue bonds entered into as a financing mechanism to fund capital expenditures. + References No definition available. + Details
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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: 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(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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