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General (Details) (Error Correction [Member], USD $) In Millions, except Per Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2011
Error Correction [Member] |  |  |  |
Revision of prior period financial [Abstract] |  |  |  |
Cost of goods sold, decrease |  |  | $ 0.3 | $ 1.1
Gross profit increase |  |  | 0.3 | 1.1
Selling, general and administrative expense, decrease |  |  | 0.7 | 0.5
Provision for income tax increase |  |  | 0.3 | 1.0
Earnings from continuing operations increased |  |  | 0.7 | 0.6
Diluted earnings per share from continuing operations, increase (in dollars per share) |  |  | $ 0.01 | $ 0.01
Diluted net earnings per share, increase (in dollars per share) |  |  | $ 0.01 | $ 0.01
Out-of-period adjustments [Abstract] |  |  |  |
Pre-Tax Earnings | $ 0.5 | $ (0.5) |  |

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