Schedule II - Valuation and Qualifying Accounts (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Valuation and Qualifying Accounts [Roll Forward]
Balance at beginning of period		$ 33.0	$ 28.8	$ 17.0
Charges to cost and expense		2.2	7.8	17.0
(Deductions)		(17.5)	(3.6)	(5.2)
Balance at end of period		17.7	33.0	28.8
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts [Roll Forward]
Balance at beginning of period		13.9	15.7	11.3
Charges to cost and expense	[1]	2.1	1.8	6.1
(Deductions)	[2]	(8.3)	(3.6)	(1.7)
Balance at end of period		7.7	13.9	15.7
Costs and Earnings in Excess of Billings Allowance [Member]
Valuation and Qualifying Accounts [Roll Forward]
Balance at beginning of period		12.5	10.4	1.7
Charges to cost and expense	[1]	0.0	2.1	8.7
(Deductions)	[2]	(5.6)	0.0	0.0
Balance at end of period		6.9	12.5	10.4
Inventory Valuation Reserve [Member]
Valuation and Qualifying Accounts [Roll Forward]
Balance at beginning of period		6.4	2.6	2.0
Charges to cost and expense	[3]	0.0	3.8	2.0
(Deductions)	[4]	(3.6)	0.0	(1.4)
Balance at end of period		2.8	6.4	2.6
Valuation Allowance for Deferred Tax Assets [Member]
Valuation and Qualifying Accounts [Roll Forward]
Balance at beginning of period		0.2	0.1	2.0
Charges to cost and expense	[5]	0.1	0.1	0.2
(Deductions)	[6]	0.0	0.0	(2.1)
Balance at end of period		$ 0.3	$ 0.2	$ 0.1

[1] Provisions for doubtful accounts and costs and earnings in excess of billings.

[2] Write-offs and reversals of uncollectible accounts receivable and non-billable costs and earnings in excess of billings.

[3] Provision for inventory obsolescence.

[4] Inventory write-offs.

[5] Increase in the foreign tax loss carryforwards.

[6] Utilization of tax loss carryforwards and other tax benefits.