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Basis of Presentation (Details)
$ in Millions
Feb. 02, 2016
USD ($)
period
Agreement
Jan. 04, 2016
USD ($)
trademark
Mar. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Service obligations assumed with assets sold     $ 49.2 $ 74.6
Discontinued Operations, Disposed of by Sale | Facility Closing        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Proceeds from sale of headquarters facility   $ 11.0    
Trademarks | Discontinued Operations, Disposed of by Sale        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Number of intangible assets sold | trademark   2    
Amount of intangible assets sold   $ 9.4    
Imation Mobile Security (IronKey Brand) | Discontinued Operations, Disposed of by Sale        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Number of sale agreement | Agreement 2      
Imation Mobile Security Excluding Software and Services | Discontinued Operations, Disposed of by Sale        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Consideration received for sale of assets $ 4.3      
Imation Mobile Security Software and Services | Discontinued Operations, Disposed of by Sale        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Consideration received for sale of assets 0.4      
Service obligations assumed with assets sold $ 2.0      
Disposal group, potential earn-outs, number of annual periods subsequent to sale | period 3      
Disposal group, potential earn-outs as percentage of contingency amount 10.00%      
Disposal group, gain on disposal $ 3.8