Quarterly report pursuant to Section 13 or 15(d)

Debt (Summary Of Long-Term Indebtedness) (Details)

v2.4.0.6
Debt (Summary Of Long-Term Indebtedness) (Details) (USD $)
In Thousands, unless otherwise specified
Feb. 29, 2012
Aug. 31, 2011
Feb. 28, 2011
Feb. 29, 2012
Senior Credit Facility - Revolver [Member]
Aug. 31, 2011
Senior Credit Facility - Revolver [Member]
Feb. 29, 2012
Senior Credit Facility - Term Loan [Member]
Aug. 31, 2011
Senior Credit Facility - Term Loan [Member]
Feb. 29, 2012
6.875% Senior Notes [Member]
Aug. 31, 2011
6.875% Senior Notes [Member]
Jun. 12, 2007
6.875% Senior Notes [Member]
Mar. 27, 2012
2% Convertible Notes [Member]
Feb. 29, 2012
2% Convertible Notes [Member]
Aug. 31, 2011
2% Convertible Notes [Member]
Nov. 30, 2003
2% Convertible Notes [Member]
Debt Instrument [Line Items]                            
Senior Credit Facility $ 158,000 $ 158,000   $ 58,000 $ 58,000 $ 100,000 $ 100,000         $ 117,600    
Senior Notes               249,481 249,432 250,000        
Total Senior Indebtedness 407,481 407,432                        
Convertible subordinated debentures ("2% Convertible Notes")                       117,591 117,795 150,000
Total debt 525,072 525,227                        
Less: current maturities of long-term debt (5,000) (2,500)                        
Total long-term debt, less current maturities $ 520,072 $ 522,727                        
Debt instrument, interest rate 2.00%   2.00%         6.875%   6.875% 2.00% 2.00%   2.00%