Property and Equipment - Property, Equipment and Leasehold Improvements (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Jun. 30, 2017
Property, Plant and Equipment [Line Items]
Property, equipment and leasehold improvements-at cost	$ 51,488	$ 51,183
Accumulated depreciation	(40,005)	(37,783)
Property, equipment and leasehold improvements, net	11,483	13,400
Computer equipment
Property, Plant and Equipment [Line Items]
Property, equipment and leasehold improvements-at cost	8,366	8,262
Purchased software
Property, Plant and Equipment [Line Items]
Property, equipment and leasehold improvements-at cost	24,183	24,091
Furniture & fixtures
Property, Plant and Equipment [Line Items]
Property, equipment and leasehold improvements-at cost	6,861	6,805
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, equipment and leasehold improvements-at cost	$ 12,078	$ 12,025