Segment Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Segment Reporting Information [Line Items]
Assets	$ 2,850.1		$ 2,784.1
Net sales to external customers:
Net sales	684.0	$ 722.5
Segment EBIT:
Total EBIT for reportable segments	62.8	80.6
Unallocated corporate expenses	(10.7)	(14.2)
Unallocated Portion of Pension Settlement Charges	(1.2)	215.2
Continued Dumping & Subsidy Offset Act (CDSOA) receipts, net of expense	47.7	0.0
Interest expense	(8.4)	(8.0)
Investment Income, Interest	0.3	0.7
Income From Continuing Operations Before Income Taxes	90.5	(156.1)
Mobile Industries [Member]
Net sales to external customers:
Net sales	383.2	393.0
Segment EBIT:
Total EBIT for reportable segments	30.2	35.4
Process Industries [Member]
Net sales to external customers:
Net sales	300.8	329.5
Segment EBIT:
Total EBIT for reportable segments	$ 32.6	$ 45.2