Restructuring Charges (Narratives) (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Jun. 30, 2017 USD ($)	Jun. 30, 2015 USD ($) Employee	Jun. 30, 2017 USD ($) Employee	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring liabilities	$ 4,122	$ 5,854	$ 4,122	$ 4,644	$ 5,854	$ 322
Restructuring charge, net of reversals		$ 9,700	8,900	11,000	9,800
Accelerated depreciation of leasehold improvements			2,600
Additional sublease charges			2,000
Reversal of prior accruals	1,300		1,446	726
Cash payments			6,840	$ 7,737	4,287
Abandoned facilities, percent of original space				32.00%
Expected number of positions eliminated, more than | Employee		225
San Jose Location
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost excess facility non-cancellable leased space percent				39.00%
North Carolina Location
Restructuring Cost and Reserve [Line Items]
Restructuring charge, net of reversals				$ 4,100
Accelerated depreciation of leasehold improvements				$ 3,100
Abandoned facilities, percent of original space				36.00%
Salem Location
Restructuring Cost and Reserve [Line Items]
Restructuring charge, net of reversals				$ 4,400
Accelerated depreciation of leasehold improvements				$ 1,300
Restructuring and related cost excess facility non-cancellable leased space percent				27.00%
Non-Cancelable Lease Payments
Restructuring Cost and Reserve [Line Items]
Restructuring charge, net of reversals				$ 5,400
Non-Cancelable Lease Payments | San Jose Location
Restructuring Cost and Reserve [Line Items]
Restructuring charge, net of reversals				1,800
Excess Facilities
Restructuring Cost and Reserve [Line Items]
Restructuring liabilities	$ 2,184		2,184	4,644		$ 322
Reversal of prior accruals			1,337	18
Cash payments			$ 3,074	1,686	$ 322
Professional fee related to restructuring charge				1,000
Other restructuring charge				100
Excess Facilities | Leasehold Improvements
Restructuring Cost and Reserve [Line Items]
Accelerated depreciation of leasehold improvements				$ 4,500
Reduction-in-force
Restructuring Cost and Reserve [Line Items]
Number of employees eliminated under reduction-in-force | Employee			90
Severance and benefits charges			$ 5,600
Cash payments			$ 3,800