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Supplemental Cash Flow Disclosures (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2010
Supplemental Cash Flow Information [Abstract]      
Cash paid during the period for interest $ 15,305 $ 8,542 $ 10,701
Cash received during the period for interest 1,396 1,203 1,141
Cash paid during the period for income taxes $ 15,864 $ 29,551 $ 32,946