Accrued Expenses (Schedule of Changes in Company's Product Warranty Liability) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Changes in product warranty liability
Balance at beginning of period	$ 6.9	$ 5.4	$ 6.9
Claims paid during the year	(4.7)	(2.9)	(6.4)
Warranty expense	4.0	4.0	4.9
Acquired warranty liabilities	(0.1)	0.4	0.0
Balance at end of period	$ 6.1	$ 6.9	$ 5.4