Revenue - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Revenue Recognition [Line Items]
Revenue recognition, description of timing	As our production cycle is typically six months or less, it is expected that goods related to the revenue represented in that adjustment will be shipped and billed within the current year.
Contract assets recorded for revenue, unbilled	$ 35.2		$ 38.1
Reduction in inventory	$ (14.6)	$ (10.9)
Revenue recognition, description of payment terms	one year or less
Revenue recognition, remaining performance obligation, expected timing of satisfaction	1 year
Accounting Standards Update No. 2014-09
Revenue Recognition [Line Items]
Contract assets recorded for revenue, unbilled			$ 38.1
Offset recorded to opening balance of retained earnings, taxes	$ 1.3
Contract assets billed and reclassified to trade accounts receivable	36.0
Decrease in revenue	2.9
Decrease in gross margin	$ 0.7
Decrease in diluted earnings per share	$ 0.005
Reduction in inventory	$ 30.8
Accounting Standards Update No. 2014-09 | Retained Earnings
Revenue Recognition [Line Items]
Reduction in inventory associated with revenue recorded to retained earnings	$ 33.0