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FAIR VALUE MEASUREMENTS (Details 5) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jan. 31, 2014 | Jul. 31, 2014 | Oct. 31, 2014
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis |  |  |
Losses, Property and equipment - net |  | $ 62.3 |
Fair Value, Nonrecurring Measurements | Level 3 |  |  |
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis |  |  |
Property and equipment - net |  |  | $ 53.0
Losses, Property and equipment - net |  | 26.0 |
Losses, Assets held for sale - Water operations |  | $ 36.0 |
Other assets |  |  | $ 15.0
Fair Value, Nonrecurring Measurements | Level 3 | Water Operations | Cost of Sales |  |  |
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis |  |  |
Non-cash charge for impairment of long-lived assets, pretax | $ 26.0 |  |
Non-cash charge for impairment of long-lived assets, after-tax | $ 26.0 |  |

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