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Estimates of Average Useful Lives and Residual Values of Property and Equipments (Detail) | 12 Months Ended
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Nov. 30, 2012
Ships |
Property, Plant and Equipment [Line Items] |
Average useful lives of property and equipment | 30 years
Residual values of property and equipment | 15.00%
Ship improvements |
Property, Plant and Equipment [Line Items] |
Average useful lives of property and equipment | Shorter of remaining ship life or useful life
Residual values of property and equipment, lower limit | 0.00%
Residual values of property and equipment, upper limit | 15.00%
Ship improvements | Minimum |
Property, Plant and Equipment [Line Items] |
Average useful lives of property and equipment | 3 years
Ship improvements | Maximum |
Property, Plant and Equipment [Line Items] |
Average useful lives of property and equipment | 28 years
Buildings and improvements |
Property, Plant and Equipment [Line Items] |
Residual values of property and equipment, lower limit | 0.00%
Residual values of property and equipment, upper limit | 10.00%
Buildings and improvements | Minimum |
Property, Plant and Equipment [Line Items] |
Average useful lives of property and equipment | 5 years
Buildings and improvements | Maximum |
Property, Plant and Equipment [Line Items] |
Average useful lives of property and equipment | 40 years
Computer hardware and software |
Property, Plant and Equipment [Line Items] |
Residual values of property and equipment, lower limit | 0.00%
Residual values of property and equipment, upper limit | 10.00%
Computer hardware and software | Minimum |
Property, Plant and Equipment [Line Items] |
Average useful lives of property and equipment | 3 years
Computer hardware and software | Maximum |
Property, Plant and Equipment [Line Items] |
Average useful lives of property and equipment | 10 years
Transportation equipment and other |
Property, Plant and Equipment [Line Items] |
Residual values of property and equipment, lower limit | 0.00%
Residual values of property and equipment, upper limit | 10.00%
Transportation equipment and other | Minimum |
Property, Plant and Equipment [Line Items] |
Average useful lives of property and equipment | 2 years
Transportation equipment and other | Maximum |
Property, Plant and Equipment [Line Items] |
Average useful lives of property and equipment | 20 years
Leasehold improvements, including port facilities |
Property, Plant and Equipment [Line Items] |
Average useful lives of property and equipment | Shorter of lease term or related asset life
Leasehold improvements, including port facilities | Minimum |
Property, Plant and Equipment [Line Items] |
Average useful lives of property and equipment | 3 years
Leasehold improvements, including port facilities | Maximum |
Property, Plant and Equipment [Line Items] |
Average useful lives of property and equipment | 30 years

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- Definition The estimated value of an asset at the end of its useful life. + References No definition available. + Details
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- Definition The estimated lower limit value of an asset at the end of its useful life. + References No definition available. + Details
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- Definition The estimated upper limit value of an asset at the end of its useful life. + References No definition available. + Details
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- Definition Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2155824 + Details
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- Details
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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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