Gains (Losses) on Derivative Financial Instruments (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2010
Nondesignated | Forward exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivative financial instruments that were recorded in the Consolidated Statement of Income	$ 16,804	$ 3,245	$ (14,588)	$ 19,048
Nondesignated | Costless Collar Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivative financial instruments that were recorded in the Consolidated Statement of Income	(1,765)	(1,018)	5,850	(4,554)
Derivatives Designated as Hedging Instruments | Cross-Currency Swap Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivative and non-derivative financial instruments that were recorded in accumulated other comprehensive income (loss) in the Consolidated Balance Sheet	1,674	3,244	17,315	(11,577)
Non Derivative Financial Instruments | Foreign Denominated Debt
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivative and non-derivative financial instruments that were recorded in accumulated other comprehensive income (loss) in the Consolidated Balance Sheet	$ 5,287	$ 226	$ 16,665	$ (36,334)