Restructuring and Related Charges, Net of Reversals (Narratives) (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($) Employee	Jun. 30, 2016 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring liabilities	$ 6,455	$ 5,323	$ 6,455	$ 4,122	$ 4,644
Restructuring charge, net of reversals		5,100	8,100	8,900
Restructuring and related charges, net of reversals		5,090	8,140	8,896
Accelerated depreciation of leasehold improvements		100	2,600
Additional sublease charges				2,000
Reversal of prior accruals	1,300	438	12	1,446
2019 Reduction-in-force
Restructuring Cost and Reserve [Line Items]
Severance and benefits charges		3,700
Additional severance cost	$ 1,100
2019 Reduction-in-force | Non-Cancelable Lease Payments
Restructuring Cost and Reserve [Line Items]
Charges for changes to estimates for accrued lease costs		$ 300
2018 Reduction-in-force
Restructuring Cost and Reserve [Line Items]
Severance and benefits charges			7,900
2018 Reduction-in-force | Non-Cancelable Lease Payments
Restructuring Cost and Reserve [Line Items]
Charges for changes to estimates for accrued lease costs			$ 200
Reduction-in-force
Restructuring Cost and Reserve [Line Items]
Severance and benefits charges				$ 5,600
Number of employees eliminated under reduction-in-force | Employee				90