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VAT TAX ISSUE IN BRAZIL (Details 1)
In Millions, unless otherwise specified
 1 Months Ended 12 Months Ended
Oct. 31, 2010
USD ($)
Oct. 31, 2010
BRL
Jan. 31, 2014
BRL
Jan. 31, 2013
USD ($)
Jan. 31, 2014
Original Claim 2004-2006 [Member]
BRL
Jan. 31, 2013
Original Claim 2004-2006 [Member]
USD ($)
Jan. 31, 2014
Preacquisition 2007-April 2008 [Member]
BRL
Jan. 31, 2013
Preacquisition 2007-April 2008 [Member]
USD ($)
Jan. 31, 2014
Postacquisition May 2008-April 2009 [Member]
BRL
Jan. 31, 2013
Postacquisition May 2008-April 2009 [Member]
USD ($)
Jan. 31, 2014
Escrow released from one seller [Member]
BRL
Jan. 31, 2013
Escrow released from one seller [Member]
USD ($)
Jan. 31, 2014
Charged to expense at April 30, 2010 [Member]
BRL
Jan. 31, 2013
Charged to expense at April 30, 2010 [Member]
USD ($)
Vat Tax Issue In Brazil [Line Items]                            
Total Paid Or To Be Paid Into Government Under Amnesty Program     9.2 $ 5.0 3.5 $ 1.9 2.4 $ 1.3 3.3 $ 1.8 1.0 $ 0.5 0 $ 0
Total Not Available For Credit     3.8 [1] 2.1 [1] 1.4 [1] 0.8 [1] 1.0 [1] 0.5 [1] 1.4 [1] 0.8 [1] 1.0 [1] 0.5 [1] 2.8 [1] 1.6 [1]
Available For Credit $ 1.4 3.4 5.4 [2] $ 2.9 [2] 2.1 [2] $ 1.1 [2] 1.4 [2] $ 0.8 [2] 1.9 [2] $ 1.0 [2] 0 [2] $ 0 [2] 0 [2] $ 0 [2]
[1] Essentially represents the discount originally offered as incentive by the neighboring state.
[2] The amount allowed as credit against future payments represents the VAT taxes actually previously paid to the neighboring state.