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Long-Term Debt And Credit Facility Long-Term Debt And Credit Facility (Components of Debt) (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Jun. 30, 2012
Debt Disclosure [Abstract]    
Senior notes outstanding $ 150,000 $ 150,000
Line of Credit Facility, Amount Outstanding 210,000 240,000
Capital Lease Obligations 498 584
Long-term Debt 360,498 390,584
Current portion of long-term debt 252 296
Long-term debt, less current portion $ 360,246 $ 390,288