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Supplemental Cash Flow Information (Schedule of Cash Paid for Interest and Income Taxes) (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Supplemental Cash Flow Information [Line Items]
Interest	$ 2,628	$ 1,570	$ 230
Income taxes, net of refunds	$ 9,402	$ 8,307	$ 4,666

The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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