Summary of Significant Accounting Policies (Details 4) - USD ($) shares in Thousands	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Property and Equipment
(Losses) gains on the sale/disposal of furniture and equipment (in dollars)	$ (7,000)	$ (20,000)	$ 21,000
Impairment of long-lived assets	$ 0	$ 0
Earnings Per Share [Abstract]
Options outstanding to purchase common stock and unvested restricted stock (in shares)	9,739	8,486	7,703
Common stock equivalents under treasury stock method (in shares)	770	1,820	2,149
Machinery and equipment
Property and Equipment
Estimated useful lives	5 years
Computer hardware and software
Property and Equipment
Estimated useful lives	3 years
Furniture and fixtures
Property and Equipment
Estimated useful lives	5 years
(Losses) gains on the sale/disposal of furniture and equipment (in dollars)	$ (7,000)	$ (20,000)	$ 21,000
Leasehold improvements | Maximum
Property and Equipment
Estimated useful lives	7 years