Accounts Receivable (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2015	Dec. 31, 2014
Accounts Receivable, Net, Current [Abstract]
Trade				$ 468.2	$ 516.3
Other				19.0	24.2
Total accounts receivable				487.2	540.5
Allowance for doubtful accounts	$ (10.0)	$ (8.2)	$ (9.2)	(9.1)	(10.0)
Accounts receivable, net				$ 478.1	$ 530.5
Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning of year	10.0	8.2	9.2
Write offs less recoveries	(0.9)	(2.6)	(3.9)
Foreign currency exchange effects	(2.7)	(2.6)	(1.3)
End of year	9.1	10.0	8.2
Continuing operations
Movement in Valuation Allowances and Reserves [Roll Forward]
Provision for uncollectible accounts receivable:	2.9	7.5	4.1
Discontinued operations
Movement in Valuation Allowances and Reserves [Roll Forward]
Provision for uncollectible accounts receivable:	$ 0.2	$ 0.5	$ (0.1)