Note 3 - Derivatives (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2010	Apr. 03, 2010	Dec. 31, 2007
Derivative, Amount of Hedged Item			$ 465.0
Derivative, Fixed Interest Rate		5.48%
Derivative, Gain on Derivative	3.8
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax	$ 2.5