Discontinued Operations (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Accounts receivable, net					$ 31.0
Deposit received on sale of DPLER	$ 0.0		$ 0.0		75.5
Property, plant & equipment, net					4.6
Intangible assets, net					24.6
Other assets					2.0
Total assets of the disposal group classified as held for sale in the balance sheets					62.2
Accounts payable					0.8
Other liabilities					0.8
Total liabilities of the disposal group classified as held for sale in the balance sheets					1.6
Revenues	0.0	$ 77.1	0.0	$ 274.6
Cost of revenues	0.0	(66.5)	0.0	(247.0)
Operating expenses	0.0	(5.7)	(0.7)	(17.5)
(Loss) / income from discontinued operations before income taxes	0.0	4.9	(0.7)	10.1
Gain from disposal of discontinued operations	0.0	0.0	49.2	0.0
Income tax expense / (benefit) for discontinued operations	0.0	1.8	18.9	(1.8)
Discontinued operations	$ 0.0	$ 3.1	29.6	11.9
Cash flows from operating activities for discontinued operations			(0.7)	28.4
Cash flows from investing activities for discontinued operations			$ 75.5	$ 0.7
Dpler [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Deposit received on sale of DPLER					$ 75.5