Balance Sheet Accounts (Components of Property and Equipment) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Jun. 30, 2020
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 173,574	$ 170,215
Less: accumulated depreciation and amortization	(117,579)	(111,402)
Property and equipment, net	55,995	58,813
Computers and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	74,275	73,244
Purchased software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	35,942	34,015
Office equipment, furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	10,679	10,639
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 52,678	$ 52,317