DERIVATIVE FINANCIAL INSTRUMENTS - Activity Related to Change in Net Unrealized Gains on Cash Flow Hedges, Net of Tax, in Accumulated Other Comprehensive Loss (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	May 31, 2013	May 31, 2012	May 31, 2013	May 31, 2012
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Net unrealized (losses) gains on cash flow hedges, beginning of period			$ (31,752)	$ 52,315
Change in fair value	(87,081)	(165,385)	(76,092)	(194,458)
Reclassification adjustments into Cost of services	3,080	15,360	20,272	34,790
Portion attributable to Noncontrolling interests			3,416	13,237
Net unrealized (losses) gains on cash flow hedges, end of period	$ (84,156)	$ (94,116)	$ (84,156)	$ (94,116)