Litigation, Commitments and Contingencies (Details) $ in Millions		3 Months Ended
	May. 22, 2013 member plaintiff patent	Mar. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Dec. 31, 2014 USD ($)
Loss Contingencies [Line Items]
Accrued copyright levies			$ 5.8	$ 9.3
Copyright levies accrual reversal		$ 2.8
One-Blue, LLC and Members vs. Imation
Loss Contingencies [Line Items]
Number of plaintiffs | plaintiff	5
Number of members of One-Blue involved in litigation | member	4
Number of patents allegedly infringed | patent	6
French Levy Society vs. Imation | Pending and Threatened Litigation
Loss Contingencies [Line Items]
Damages sought		$ 8.7