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Goodwill and Other Identifiable Intangible Assets (Narrative) (Details) (USD $)
 12 Months Ended
Jun. 30, 2011
years
Jun. 30, 2010
years
Jun. 30, 2009
years
Goodwill impairment charges $ 0 $ 0 $ 0
Weighted average amortization period 10 12 13
Amortization expense 3,000,000 2,000,000 2,600,000
Customer Lists [Member]
      
Gross carrying amount and accumulated amortization written off 300,000    
Non-compete Agreements [Member]
      
Gross carrying amount and accumulated amortization written off 1,800,000    
Trade Names [Member]
      
Gross carrying amount and accumulated amortization written off $ 1,000,000