Leases and Commitments (Tables)

12 Months Ended

Dec. 31, 2011

Leases [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

Future minimum operating lease payments at December 31, 2011 were as follows:

(millions of dollars)
2012	$	16.7
2013	14.0
2014	12.1
2015	10.9
2016	9.2
After 2016	9.9
Total minimum lease payments	$	72.8