Discontinued Operations (Tables)

9 Months Ended

Sep. 30, 2017

Discontinued Operations And Disposal Groups [Abstract]

Major classes of line items constituting earnings from discontinued operations before income taxes related to MFS

The following table presents the financial results of MFS through the date of the Spin-Off for the indicated period and does not include corporate overhead allocations:

Major classes of line items constituting earnings from discontinued operations before income taxes related to MFS

($ in millions)	Three Months Ended September 30, 2016			Nine Months Ended September 30, 2016
Net sales	$	—		$	219.6
Cost of sales		—			141.5
Engineering, selling and administrative expenses		—			48.4
Amortization expense		—			5.2
Restructuring expense		—			0.3
Separation expense		—			27.7
Total operating costs and expenses		—			223.1
Loss from operations		—			(3.5	)
Other expense		—			(1.8	)
Loss from discontinued operations before income    taxes		—			(5.3	)
Provision for taxes on earnings		1.8			0.5
Loss from discontinued operations, net of income    taxes	$	(1.8	)	$	(5.8	)