Note 10 - Related Party Transactions (Detail) (USD $)	1 Months Ended	12 Months Ended
	Jun. 24, 2000	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Lease Term	20 years
Operating Leases, Rent Expense		$ 31,600,000	$ 24,600,000	$ 18,000,000
Operating Leases, Future Minimum Payments Due		125,890,000
A Director and Family of Chairman of the Board [Member]
Operating Leases, Rent Expense		300,000	300,000	300,000
Operating Leases, Future Minimum Payments Due		$ 300,000