Balance Sheet Accounts (Components of Property and Equipment) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Jun. 30, 2018
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 160,595	$ 147,116
Less: accumulated depreciation and amortization	(87,538)	(68,597)
Property and equipment, net	73,057	78,519
Computers and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	72,201	60,677
Purchased software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	25,501	21,389
Office equipment, furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	11,710	14,980
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 51,183	$ 50,070