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1. Basis of Presentation and Use of Estimates Immaterial Error Corrections (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended
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Jun. 30, 2012 | Mar. 31, 2012 Cost of goods sold, immaterial error [Member] | Mar. 31, 2012 Interest expense, immaterial error [Member] | Mar. 31, 2012 Other (income) expense, net, immaterial error [Member] | Mar. 31, 2012 Income tax benefit, immaterial error [Member] | Mar. 31, 2012 2007 through 2011 [Member] | Mar. 31, 2012 First quarter of 2011 [Member] | Mar. 31, 2012 2008 through 2011 [Member] | Mar. 31, 2012 2007 [Member] | Mar. 31, 2012 2008 [Member] | Mar. 31, 2012 2009 [Member] | Mar. 31, 2012 2010 [Member] | Mar. 31, 2012 2011 [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Quantifying Misstatement Payment | $ 5.6 |  |  |  |  |  |  |  |  |  |  |  |
Quantifying Misstatement Amount |  |  |  |  |  | 6.1 | (1.6) | 0.9 | 1.1 | 1.5 | 1.3 | 1.6 | (0.1)
Quantifying Misstatement in Current Year Financial Statements, Amount |  | $ 4.1 | $ 1.2 | $ 0.8 | $ (0.7) |  |  |  |  |  |  |  |

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- Definition Amount of each individual error being corrected in the correcting adjustment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 1.N.Q3) -URI http://asc.fasb.org/extlink&oid=6369664&loc=d3e30840-122693 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 1 -Section N + Details
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