Other Current Liabilities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Other Current Liabilities
Deferred revenue			$ 77.0	$ 89.0
Accrued compensation			88.5	87.7
Accrued warranty	$ 21.6	$ 26.7	19.6	21.6
Income taxes payable			25.1	19.2
Other taxes payable			25.4	17.6
Derivative liabilities			2.2	5.7
Other accrued expenses			65.7	60.6
Other current liabilities			$ 303.5	$ 301.4
Changes in accrued warranty
Balance at the beginning of the year	21.6	26.7
Accruals for warranties issued during the year	21.1	19.5
Settlements of warranty claims	(21.7)	(22.5)
Foreign currency impact	(1.4)	(2.1)
Balance at the end of the year	$ 19.6	$ 21.6