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Components of Debt (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Jun. 30, 2014
Debt Instrument [Line Items]
Total debt	$ 212,512us-gaap_LongTermDebt	$ 241,960us-gaap_LongTermDebt
Current portion of long-term debt	(20,000)us-gaap_LongTermDebtCurrent	(20,000)us-gaap_LongTermDebtCurrent
Long-term debt, less current portion	192,512us-gaap_LongTermDebtNoncurrent	221,960us-gaap_LongTermDebtNoncurrent
Line of credit
Debt Instrument [Line Items]
Total debt	135,000	154,000
Term Loans
Debt Instrument [Line Items]
Total debt	75,000	85,000
Yen denominated line of credit
Debt Instrument [Line Items]
Total debt	$ 2,512	$ 2,960

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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