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DERIVATIVE INSTRUMENTS DERIVATIVE INSTRUMENTS NARRATIVE (Details) - Interest Rate Swap - Cash Flow Hedges
$ in Millions
3 Months Ended
Apr. 30, 2016
USD ($)
Derivative  
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Before Tax $ (2.6)
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months $ (1.3)