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Divestitures - Narrative - Fiscal 2015 Divestitures (Details) - Trace Laboratories
$ in Millions
Feb. 03, 2015
USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]  
Percentage ownership prior to disposal 100.00%
Sale of business $ 11.7
Net assets of business, book value 4.0
Pre-tax gain on sale of net assets $ 7.7