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Lease Commitments (Tables)
12 Months Ended
Dec. 31, 2012
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]  
Operating Leases of Lessee Disclosure [Table Text Block]
Future minimum lease payments are as follows:
(in millions)
 
Years ending December 31,
2013
$
18.3

2014
18.3

2015
17.6

2016
13.1

2017
10.6

Thereafter
28.3

Total future minimum lease payments
$
106.2