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Significant Accounting Policies (Tables) | 12 Months Ended
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May 31, 2013
Accounting Policies [Abstract] |
Schedule of inventory | Inventory is comprised of the following amounts:
(In thousands) | 2013 |  | 2012
Raw materials | $ | 19,800 |  |  | $ | 19,138 |
Work in process | 17,353 |  |  | 13,052 |
Finished goods | 203,287 |  |  | 219,015 |
| $ | 240,440 |  |  | $ | 251,205 |
Estimated useful lives | Depreciation is calculated using the straight-line method primarily over the following estimated useful lives of the assets based on industry and company specific experience, in years:
Buildings | 30 to 40
Building improvements | 5 to 20
Equipment | 3 to 10
Leasehold improvements | 2 to 15
(In thousands) | 2013 |  | 2012
Land | $ | 112,311 |  |  | $ | 108,176 |
Buildings and improvements | 512,717 |  |  | 497,249 |
Equipment | 1,631,213 |  |  | 1,478,270 |
Leasehold improvements | 27,543 |  |  | 25,502 |
Construction in progress | 58,463 |  |  | 62,370 |
| 2,342,247 |  |  | 2,171,567 |
Less: accumulated depreciation | 1,355,544 |  |  | 1,218,980 |
| $ | 986,703 |  |  | $ | 952,587 |
Current accrued liabilities | Current accrued liabilities include the following amounts:
(In thousands) | 2013 |  | 2012
General insurance liabilities | $ | 96,930 |  |  | $ | 82,611 |
Employee benefit related liabilities | 59,221 |  |  | 56,134 |
Taxes and related liabilities | 7,776 |  |  | 8,523 |
Accrued interest | 26,816 |  |  | 29,523 |
Other | 81,078 |  |  | 84,651 |
| $ | 271,821 |  |  | $ | 261,442 |

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- Definition Tabular disclosure of the useful life and salvage value of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 5 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: 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 3: 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 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph b -Article 5 + Details
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- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 2 -Paragraph 6 -Subparagraph a,b,c -Article 5 + Details
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