Note 11 - Long-Term Debt (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Aug. 19, 2011	Feb. 29, 2012	May 31, 2012	Aug. 19, 2011 Minimum [Member]	Nov. 30, 2011 Federal Funds Effective Rate [Member]	Aug. 19, 2011 Federal Funds Effective Rate [Member]	Nov. 30, 2011 LIBOR Rate [Member]	Aug. 19, 2011 LIBOR Rate [Member]	Aug. 19, 2011 Notes Payable, Other Payables [Member]
Secured Long-term Debt, Noncurrent (in Dollars)		$ 615
Line of Credit Facility, Maximum Borrowing Capacity (in Dollars)		100
Letters of Credit Outstanding, Amount (in Dollars)		25.0
Debt Instrument, Unused Borrowing Capacity, Description		$150.0
Debt Instrument, Periodic Payment (in Dollars)	1.5
Debt Instrument, Basis Spread on Variable Rate							0.50%		1.00%
Line of Credit Facility, Interest Rate at Period End				7.25%	1.50%
Line of Credit Facility, Interest Rate Description			The applicable margin for borrowings under the Senior Credit Facilities is currently 4.75% with respect to base rate borrowings and 5.75% with respect to LIBOR borrowings. The applicable margin for borrowings under the Senior Credit Facility is subject to a 0.25% step-down, when the Company's senior secured net leverage ratio at the end of a fiscal quarter is less than or equal to 3:00 to 1:00.
Debt Instrument, Interest Rate at Period End						4.75%		5.75%
Debt Instrument, Face Amount (in Dollars)										$ 400
Debt Instrument, Interest Rate, Stated Percentage		11.125%