Other Comprehensive Income (Tables)

6 Months Ended

Jun. 30, 2013

Other Comprehensive Income [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)

Components of accumulated other comprehensive loss were as follows ($ in millions):

	June 30, 2013			December 31, 2012
Accumulated pension and OPEB liability adjustments, net of income tax of $22.1 million and $23.3 million at June 30, 2013 and December 31, 2012, respectively	$	(41.1	)	$	(43.2	)
Accumulated unrealized loss on derivative instruments, net of income tax benefit of $0.6 million and $1.5 million at June 30, 2013 and December 31, 2012, respectively	(6.6		)	(1.4		)
Accumulated unrealized foreign currency translation adjustments	12.1			29.2
Accumulated other comprehensive loss	$	(35.6	)	$	(15.4	)

Schedule of Comprehensive Income (Loss)

Changes in the components of accumulated other comprehensive loss were as follows ($ in millions):

	Three Months Ended
	June 30, 2013									June 30, 2012
	Pre-tax			Tax			Net of Tax			Pre-tax			Tax			Net of Tax
Pension and OPEB liability adjustments	$	1.4		$	(0.4	)	$	1.0		$	1.7		$	(0.5	)	$	1.2
Unrealized loss on derivative instruments	(6.1		)	(0.2		)	(6.3		)	(6.2		)	2.1			(4.1		)
Unrealized foreign currency translation adjustments	(5.9		)	—			(5.9		)	(23.1		)	—			(23.1		)
Total	$	(10.6	)	$	(0.6	)	$	(11.2	)	$	(27.6	)	$	1.6		$	(26.0	)

	Six Months Ended
	June 30, 2013									June 30, 2012
	Pre-tax			Tax			Net of Tax			Pre-tax			Tax			Net of Tax
Pension and OPEB liability adjustments	$	3.3		$	(1.2	)	$	2.1		$	1.1		$	(0.3	)	$	0.8
Unrealized loss on derivative instruments	(4.4		)	(0.8		)	(5.2		)	(3.0		)	1.0			(2.0		)
Unrealized foreign currency translation adjustments	(17.1		)	—			(17.1		)	(11.0		)	—			(11.0		)
Total	$	(18.2	)	$	(2.0	)	$	(20.2	)	$	(12.9	)	$	0.7		$	(12.2	)