Acquisition of Minnesota Limited, Inc. (Tables)

12 Months Ended

Dec. 31, 2011

Acquisition of Minnesota Limited, Inc. [Abstract]

Schedule of business acquisitions, by acquisition

The following table summarizes the allocation of the purchase price to the fair value of the assets acquired and liabilities assumed.

(In millions)
Working capital assets	$       21.5
Working capital liabilities	(6.7)
Net working capital	14.8
Property, plant & equipment	34.4
Identifiable intangible assets	19.1
Goodwill	20.3
Net assets acquired	88.6
Debt obligation assumed	(5.2)
Cash paid in acquisition, net of cash acquired	$       83.4

Business Acquisition, Pro Forma Information [Table Text Block]

The following table presents the Company's unaudited proforma results of operations for the twelve months ended December 31, 2011, 2010, and 2009 as if the acquisition had occurred on January 1, 2009.

	Year Ended December 31,
(In millions, except per share data)	2011		2010		2009
Total operating revenues	$	2,346.3	$	2,239.7	$	2,210.0
Net income	$	141.4	$	134.6	$	138.1
Basic earnings per share	$	1.73	$	1.66	$	1.71
Diluted earnings per share	$	1.73	$	1.66	$	1.70