CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (USD $) In Millions	3 Months Ended				9 Months Ended
	Sep. 30, 2011		Sep. 30, 2010		Sep. 30, 2011		Sep. 30, 2010
Net income	$ 40.7	[1]	$ 38.6	[1]	$ 119.1	[1]	$ 100.0	[1]
Other comprehensive income
Change associated with hedging transactions (Note 11)	3.5		1.3		10.4		5.9
Change associated with hedging transactions of investees			0.4				0.4
Total other comprehensive income	3.5		1.7		10.4		6.3
Total comprehensive income	$ 44.2		$ 40.3		$ 129.5		$ 106.3

[1] Includes equity earnings from GTN and Bison from May 3, 2011, date of acquisition, to September 30, 2011.