Other Current Liabilities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Other Current Liabilities
Deferred revenue			$ 75.5	$ 77.0
Accrued compensation			83.8	88.5
Accrued warranty	$ 19.6	$ 21.6	18.7	19.6
Contingent consideration			13.5	4.6
Income taxes payable			11.3	25.1
Other taxes payable			12.4	25.4
Derivative liabilities			1.8	2.2
Other accrued expenses			52.5	61.1
Other current liabilities			$ 269.5	$ 303.5
Changes in accrued warranty
Balance at the beginning of the year	19.6	21.6
Accruals for warranties issued during the year	17.4	21.1
Settlements of warranty claims	(17.8)	(21.7)
Foreign currency impact	(0.5)	(1.4)
Balance at the end of the year	$ 18.7	$ 19.6