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Intangible Assets (Schedule Of Intangible Assets) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Jun. 30, 2011
Intangible Assets [Abstract]    
Customer contracts and related customer relationships $ 329,314 $ 291,174
Acquired technologies 27,177 27,177
Covenants not to compete 3,397 3,070
Other 1,635 1,637
Intangible assets 361,523 323,058
Less accumulated amortization (233,025) (214,956)
Total intangible assets, net $ 128,498 $ 108,102