Restructuring, Impairments, and Related Charges (Narratives) (Details) $ in Thousands	6 Months Ended	12 Months Ended			18 Months Ended
	Dec. 31, 2021 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($) Employee	Jun. 30, 2019 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2018 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring liabilities		$ 271	$ 2,219	$ 5,323	$ 271	$ 6,455
Restructuring and related charges		2,625	22,011	5,090
Reduction in force or severance and benefits		1,597	14,875	5,528
2021 Reduction-in-force
Restructuring Cost and Reserve [Line Items]
Severance and benefits charges		1,500
Facility related charges		$ 1,100
Reduction in force or severance and benefits					$ 9,600
2021 Reduction-in-force | Scenario Forecast
Restructuring Cost and Reserve [Line Items]
Reduction in force or severance and benefits	$ 500
2020 Reduction-in-force
Restructuring Cost and Reserve [Line Items]
Severance and benefits charges			13,500
Facility related charges			8,500
Reduction in force or severance and benefits			$ 8,100
Number of employee affected | Employee			320
Additional severance and benefits charges			$ 5,400
Impairment of ROU assets			6,700
Impairment of Long-Lived Assets Held-for-use			900
Other charges related to previously impaired facilities			$ 900
2019 Reduction-in-force
Restructuring Cost and Reserve [Line Items]
Severance and benefits charges				3,700
Additional severance and benefits charges				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