Schedule II - Valuation and Qualifying Accounts (Notes)

12 Months Ended

Dec. 31, 2014

Valuation and Qualifying Accounts [Abstract]

Schedule of Valuation and Qualifying Accounts

Schedule II - Valuation and Qualifying Accounts

($ in millions)	Balance at beginning of period		Charged to costs and expenses			Deductions (1)			Balance at end of period
For the year ended December 31, 2014
Allowances deducted from assets:
Deferred tax asset valuation allowance	$	23.5	$	(0.9	)	$	(0.5	)	$	22.1
Allowance for doubtful accounts	0.8		0.4			(0.3		)	0.9
Total allowances deducted from assets	$	24.3	$	(0.5	)	$	(0.8	)	$	23.0
For the year ended December 31, 2013
Allowances deducted from assets:
Deferred tax asset valuation allowance	$	20.4	$	2.8		$	0.3		$	23.5
Allowance for doubtful accounts	0.5		—			0.3			0.8
Total allowances deducted from assets	$	20.9	$	2.8		$	0.6		$	24.3
For the year ended December 31, 2012
Allowances deducted from assets:
Deferred tax asset valuation allowance	$	19.3	$	0.6		$	0.5		$	20.4
Allowance for doubtful accounts	0.3		0.3			(0.1		)	0.5
Total allowances deducted from assets	$	19.6	$	0.9		$	0.4		$	20.9

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(1) Includes accounts receivable written off, the write-off or write-down of valuation allowances, and translation adjustments.