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Summary Of Significant Accounting Policies (Estimated Useful Life Of Property, Plant And Equipment) (Details) | 12 Months Ended
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Mar. 31, 2012 Y
Buildings [Member] |
Property, Plant and Equipment [Line Items] |
Property, plant and equipment, estimated useful life in years, average | 40
Process Upgrades To The Building [Member] |
Property, Plant and Equipment [Line Items] |
Property, plant and equipment, estimated useful life in years, minimum | 10
Property, plant and equipment, estimated useful life in years, maximum | 40
Machinery And Equipment [Member] |
Property, Plant and Equipment [Line Items] |
Property, plant and equipment, estimated useful life in years, minimum | 3
Property, plant and equipment, estimated useful life in years, maximum | 10
Furniture And Fixtures [Member] |
Property, Plant and Equipment [Line Items] |
Property, plant and equipment, estimated useful life in years, minimum | 3
Property, plant and equipment, estimated useful life in years, maximum | 5
Leasehold Improvements [Member] |
Property, Plant and Equipment [Line Items] |
Property, plant and equipment, estimated useful life in years | Shorter of the estimated useful life or the remaining lease term

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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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- Definition The average useful life of long-lived, physical assets used in the normal conduct of business 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 No definition available. + Details
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- Definition The maximum useful life of long-lived, physical assets used in the normal conduct of business 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 No definition available. + Details
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- Definition The minimum useful life of long lived, physical assets used in the normal conduct of business 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 No definition available. + Details
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