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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

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