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Property and Equipment (Components Of Property and Equipment By Type) (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Jun. 30, 2011
Property, Plant and Equipment [Line Items]    
Cost $ 145,872 $ 127,395
Accumulated Depreciation 64,715 49,570
Net Property and Equipment 81,157 77,825
Furniture and Fixtures [Member]
    
Property, Plant and Equipment [Line Items]    
Cost 10,828 7,421
Accumulated Depreciation 4,577 2,667
Net Property and Equipment 6,251 4,754
Office Equipment [Member]
    
Property, Plant and Equipment [Line Items]    
Cost 975 1,214
Accumulated Depreciation 596 657
Net Property and Equipment 379 557
Computer Hardware [Member]
    
Property, Plant and Equipment [Line Items]    
Cost 48,834 43,961
Accumulated Depreciation 34,799 30,191
Net Property and Equipment 14,035 13,770
Computer Software [Member]
    
Property, Plant and Equipment [Line Items]    
Cost 13,558 9,668
Accumulated Depreciation 7,404 3,858
Net Property and Equipment 6,154 5,810
Leasehold Improvements [Member]
    
Property, Plant and Equipment [Line Items]    
Cost 27,643 26,483
Accumulated Depreciation 13,777 9,599
Net Property and Equipment 13,866 16,884
Buildings [Member]
    
Property, Plant and Equipment [Line Items]    
Cost 44,034 38,648
Accumulated Depreciation 3,562 2,598
Net Property and Equipment $ 40,472 $ 36,050