XML 12 R33.htm IDEA: XBRL DOCUMENT v2.4.0.6
Comprehensive Income (Details) (USD $)
 3 Months Ended 9 Months Ended
Feb. 29, 2012
Feb. 28, 2011
Feb. 29, 2012
Feb. 28, 2011
Comprehensive Income        
Net income $ 76,035,000 $ 59,070,000 $ 219,023,000 $ 176,213,000
Other comprehensive income:        
Foreign currency translation adjustment 11,203,000 15,472,000 (9,343,000) 28,846,000
Change in fair value of derivatives 304,000 (152,000) 485,000 (777,000)
Amortization of interest rate lock agreements 377,000 192,000 1,131,000 575,000
Change in fair value of available- for-sale securities (29,000) (10,000) (4,000) 18,000
Comprehensive income 87,890,000 74,572,000 211,292,000 204,875,000
Comprehensive income tax expenses and benefits        
Tax expense (benefit) for change in the fair value of derivatives 200,000   300,000 (500,000)
Less than
        
Comprehensive income tax expenses and benefits        
Tax expense (benefit) for change in the fair value of derivatives   (100,000)    
Tax benefit for change in fair value of available-for-sale securities $ (100,000) $ (100,000) $ (100,000) $ 100,000