Note O - Commitments and Contingencies (Details) (USD $)	12 Months Ended
	Dec. 31, 2013 sqft	Dec. 31, 2012	Dec. 31, 2011	Mar. 08, 2010 sqft
Note O - Commitments and Contingencies (Details) [Line Items]
Land Subject to Ground Leases (in Square Feet)				257,879
Additional Land Subject To Ground Leases (in Square Feet)	53,157
Monthly Rent	$ 500,000
Percentage Of Annual Escalations Of Lease Rent	2.50%
Operating Leases, Future Minimum Payments Due	265,131,000
Operating Leases, Rent Expense	36,500,000	35,600,000	32,000,000
Operating Leases, Rent Expense, Sublease Rentals		100,000	200,000
Corporate Office Lease [Member]
Note O - Commitments and Contingencies (Details) [Line Items]
Operating Leases, Future Minimum Payments Due	$ 89,300,000
Term of Lease	12 years