Schedule II - Valuation and Qualifying Accounts (Notes)

12 Months Ended

Dec. 31, 2012

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, 2012
Allowances deducted from assets:
Deferred tax asset valuation allowance	$	19.3	$	0.6		$	0.5		$	20.4
Allowance for doubtful accounts receivable	0.3		0.3			(0.1		)	0.5
Total allowances deducted from assets	$	19.6	$	0.9		$	0.4		$	20.9
For the year ended December 31, 2011
Allowances deducted from assets:
Deferred tax asset valuation allowance	$	24.9	$	(0.2	)	$	(5.4	)	$	19.3
Allowance for doubtful accounts receivable	0.5		(0.1		)	(0.1		)	0.3
Total allowances deducted from assets	$	25.4	$	(0.3	)	$	(5.5	)	$	19.6
For the year ended December 31, 2010
Allowances deducted from assets:
Deferred tax asset valuation allowance	$	24.3	$	0.8		$	(0.2	)	$	24.9
Allowance for doubtful accounts receivable	0.7		(0.2		)	—			0.5
Total allowances deducted from assets	$	25.0	$	0.6		$	(0.2	)	$	25.4

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