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Financial Instruments - Additional Information (Detail)	Jun. 30, 2011 USD ($)	Jun. 30, 2010 USD ($)	Jun. 30, 2011 Cross-Currency Swap Contracts EUR (€)	Jun. 30, 2011 Foreign Exchange Contract EUR (€)
Derivative [Line Items]
Carrying value of long-term debt, excluding leases	$ 1,765,892,000	$ 1,758,845,000
Fair value of long-term debt, excluding leases	1,902,221,000	1,925,397,000
Cross-currency swap contract maturity			10 years
Aggregate notional amount of cross-currency swap contracts			235,000,000
Aggregate notional amount of forward exchange contracts				€ 200,000,000

Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date. May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any.

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