Note O - Contingencies and Commitments (Details) (USD $)	12 Months Ended			0 Months Ended	58 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Mar. 08, 2010	Dec. 31, 2014 sqm
Note O - Contingencies and Commitments (Details) [Line Items]
Community Development Related To Claim	$ 107,000,000				$ 107,000,000
Operating Leases, Future Minimum Payments Due	273,597,000				273,597,000
Operating Leases, Rent Expense	35,800,000	36,500,000	35,600,000
Operating Leases, Rent Expense, Sublease Rentals	100,000		100,000
Corporate Office Lease [Member]
Note O - Contingencies and Commitments (Details) [Line Items]
Land Subject to Ground Leases (in Square Meters)				258,000
Additional Land Subject To Ground Leases (in Square Feet) (in Square Meters)					72,000
Term of Lease				12 years
Monthly Rent					900,000
Percentage Of Annual Escalations Of Lease Rent				2.50%
Operating Leases, Future Minimum Payments Due	$ 150,600,000				$ 150,600,000