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Short-term Investments	12 Months Ended
Short-term Investments	Jun. 30, 2013
Short-term Investments	(6) Short-term Investments Short-term investments of $55.2 million at June 30, 2013 and $85.0 at million June 30, 2012 included certificates of deposits with highly-rated financial institutions, carried at cost. These certificates of deposits have a range of maturities between 1.5 months to 7.6 months.