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Supplemental Guarantor Financial Information (Narrative) (Details) | 9 Months Ended
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Oct. 31, 2015
Supplemental Guarantor Financial Information [Abstract] |
Minimum percentage of assets owned by domestic subsidiaries | 90.00%
Minimum percentage of accounts receivable and inventory owned by domestic subsidiaries | 95.00%

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- Definition Minimum percentage of assets owned by domestic subsidiaries + References No definition available. + Details
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