| Derivative Instruments and Hedging Activities Accumulated Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended | |
|---|---|---|
| Jun. 30, 2013 | Jun. 30, 2012 | |
| Accumulated Other Comprehensive Income | ||
| Beginning balance | $ (962) | |
| Amount reclassified to income | (1,483) | |
| Net change | 4,929 | |
| Ending balance | 2,484 | |
| Designated as Hedging Instrument | ||
| Accumulated Other Comprehensive Income | ||
| Amount reclassified to income | $ 1,483 | $ (210) | 
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- Definition Accumulated Other Comprehensive Income Loss Before Tax1 No definition available. 
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- Details 
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- Definition The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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