Discontinued Operations - Narrative (Details)	3 Months Ended			6 Months Ended
	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Feb. 02, 2016 USD ($) period Agreement	Dec. 31, 2015 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued operation, foreign currency translation loss	$ 100,000		$ 0	$ 75,800,000	$ 0
Current assets of discontinued operations	15,400,000			15,400,000			$ 44,300,000
Current liabilities of discontinued operations	39,400,000			39,400,000			74,600,000
Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued operation, foreign currency translation loss	100,000	$ 75,700,000	0	75,800,000	0
Depreciation and amortization expenses related to the discontinued businesses	0		1,600,000	0	3,200,000
Capital expenditures associated with the discontinued businesses	0		200,000	0	300,000
Income tax provision related to discontinued operations	400,000		$ 200,000	1,800,000	$ 200,000
Current assets of discontinued operations	15,400,000			15,400,000			44,300,000
Discontinued operation, restricted cash	9,600,000			9,600,000			10,000,000
Discontinued operation, inventory and other current assets							2,000,000
Discontinued operation, accounts receivable	1,900,000			1,900,000			16,000,000
Current liabilities of discontinued operations	39,400,000			39,400,000			74,600,000
Discontinued operation, account payable	29,400,000			29,400,000			39,000,000
Discontinued operation, customer credit and rebate accruals	$ 6,000,000			$ 6,000,000
Disposal operation, restructuring accruals							15,000,000
Discontinued operation, rebates							5,000,000
Discontinued operation, deferred revenue and other current liabilities							$ 2,000,000
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						$ 4,300,000
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						$ 400,000
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		$ 3,800,000
Current liabilities of discontinued operations						$ 2,000,000