Note 2 - Long-term Debt (Detail) - Long-term debt (USD $) In Thousands, unless otherwise specified	Oct. 12, 2012	Sep. 30, 2012	Dec. 31, 2011
Long-term debt including current portion:
Long-term debt including current portion		$ 824,351	$ 836,968
Total long-term debt at recorded value		820,632	832,233
Senior Credit Facility [Member]
Long-term debt including current portion:
Long-term debt including current portion		459,351	471,968
Borrowing availability under our 2007 Senior Credit Facility		40,000	31,000
2015 Notes [Member]
Long-term debt including current portion:
Long-term debt including current portion		365,000	365,000
Less unamortized discount on 2015 Notes	$ (3,700)	$ (3,719)	$ (4,735)