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Acquisitions (Summary Of Consideration Paid) (Details) (USD $)
3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Mar. 31, 2012
Mar. 31, 2011
Mar. 31, 2012
Global 360 Holding Corporation [Member]
Mar. 31, 2012
Global 360 Holding Corporation [Member]
Jul. 13, 2011
Global 360 Holding Corporation [Member]
Business Acquisition [Line Items]              
Cash consideration paid             $ 256,597,000
Acquisition related costs $ 1,439,000 $ 1,248,000 $ 3,335,000 $ 2,376,000 $ 0 $ 924,000