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Property and Equipment (Components Of Property and Equipment By Type) (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Jun. 30, 2012
Property, Plant and Equipment [Line Items]    
Cost $ 160,886 $ 145,872
Accumulated Depreciation (77,110) (64,715)
Net Property and Equipment 83,776 81,157
Furniture and fixtures [Member]
    
Property, Plant and Equipment [Line Items]    
Cost 11,607 10,828
Accumulated Depreciation (6,434) (4,577)
Net Property and Equipment 5,173 6,251
Office equipment [Member]
    
Property, Plant and Equipment [Line Items]    
Cost 1,127 975
Accumulated Depreciation (704) (596)
Net Property and Equipment 423 379
Computer hardware [Member]
    
Property, Plant and Equipment [Line Items]    
Cost 56,004 48,834
Accumulated Depreciation (38,946) (34,799)
Net Property and Equipment 17,058 14,035
Computer software [Member]
    
Property, Plant and Equipment [Line Items]    
Cost 16,401 13,558
Accumulated Depreciation (9,839) (7,404)
Net Property and Equipment 6,562 6,154
Leasehold improvements [Member]
    
Property, Plant and Equipment [Line Items]    
Cost 30,288 27,643
Accumulated Depreciation (16,801) (13,777)
Net Property and Equipment 13,487 13,866
Buildings [Member]
    
Property, Plant and Equipment [Line Items]    
Cost 45,459 44,034
Accumulated Depreciation (4,386) (3,562)
Net Property and Equipment $ 41,073 $ 40,472