Restructuring Charges (Narratives) (Details) $ in Thousands	3 Months Ended					9 Months Ended
	Mar. 31, 2017 USD ($) Employee	Dec. 31, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Mar. 31, 2017 USD ($)	Jun. 30, 2016 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring liabilities	$ 6,303					$ 6,303	$ 4,644
Accelerated depreciation of leasehold improvements	900					2,600
Net adjustments associated with sublease	$ 1,500
Restructuring charges			$ 1,400			9,572
Cash payments						5,335
Restructuring charge, net of reversals				$ 3,000	$ 5,600
Percentage of reduction in floor space				36.00%
Change in accrued lease costs			200
Reduction-in-force
Restructuring Cost and Reserve [Line Items]
Number of employees eliminated under reduction-in-force | Employee	90
Severance and benefits charges	$ 5,300
Cash payments	2,900
Sub-Lease Income for Exited Facilities
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 100
Excess Facilities
Restructuring Cost and Reserve [Line Items]
Restructuring liabilities	4,013					4,013	$ 4,644
Restructuring charges						1,655
Cash payments						2,286
Restructuring charge, net of reversals				$ 2,900	5,400
Excess Facilities | Leasehold improvements
Restructuring Cost and Reserve [Line Items]
Accelerated depreciation of leasehold improvements			1,200
Severance Benefits
Restructuring Cost and Reserve [Line Items]
Restructuring liabilities	$ 2,290					2,290
Restructuring charges						5,339
Cash payments						$ 3,049
Restructuring charge, net of reversals			$ 200	200	200
Non-Cancelable Lease Payments
Restructuring Cost and Reserve [Line Items]
Restructuring charge, net of reversals					4,100
Lease abandonment
Restructuring Cost and Reserve [Line Items]
Restructuring charges				1,900	$ 1,300
Contract Termination Charges and Professional Fees
Restructuring Cost and Reserve [Line Items]
Restructuring charge, net of reversals				$ 1,000