CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income	Accumulated Deficit
Balance (in shares) at Jun. 27, 2015		109,889
Balance at Jun. 27, 2015	$ 153,000	$ 1,099	$ 1,464,567	$ 41,526	$ (1,354,192)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of shares related to share awards and restricted stock units (in shares)		2,212
Issuance of common stock related to restricted stock units and awards	22	$ 22
Common stock repurchased for tax withholdings on vesting of restricted stock units	$ (1,640)		(1,640)
Issuance of shares upon the exercise of common stock options (in shares)	110	106
Issuance of common stock upon the exercise of stock options	$ 265	$ 1	264
Stock-based compensation	8,089		8,089
Other comprehensive gain (loss)	(1,705)			(1,705)
Net income	8,580				8,580
Balance (in shares) at Jul. 02, 2016		112,207
Balance at Jul. 02, 2016	166,611	$ 1,122	1,471,280	39,821	(1,345,612)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of shares related to share awards and restricted stock units (in shares)		2,504
Issuance of common stock related to restricted stock units and awards	25	$ 25
Common stock repurchased for tax withholdings on vesting of restricted stock units	$ (4,426)		(4,426)
Issuance of shares upon the exercise of common stock options (in shares)	1,029	1,018
Issuance of common stock upon the exercise of stock options	$ 4,873	$ 10	4,863
Issuance of common stock in connection with public offering (in shares)		17,250
Issuance of common stock in connection with public offering	135,153	$ 173	134,980
Issuance of common shares in connection with conversion of convertible notes (in shares)		34,660
Issuance of common stock in connection with exchange of convertible notes	70,622	$ 346	70,276
Stock-based compensation	11,804		11,804
Other comprehensive gain (loss)	1,152			1,152
Net income	127,859				127,859
Balance (in shares) at Jul. 01, 2017		167,639
Balance at Jul. 01, 2017	513,673	$ 1,676	1,688,777	40,973	(1,217,753)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of shares related to share awards and restricted stock units (in shares)		2,778
Issuance of common stock related to restricted stock units and awards	13	$ 28	(15)
Common stock repurchased for tax withholdings on vesting of restricted stock units (in shares)		(284)
Common stock repurchased for tax withholdings on vesting of restricted stock units	$ (3,751)	$ (3)	(3,748)
Issuance of shares upon the exercise of common stock options (in shares)	543	542
Issuance of common stock upon the exercise of stock options	$ 2,643	$ 5	2,638
Adoption of ASU No. 2016-09			268		(268)
Stock-based compensation	15,411		15,411
Other comprehensive gain (loss)	1,574			1,574
Net income	62,453
Balance (in shares) at Jun. 30, 2018		170,675
Balance at Jun. 30, 2018	$ 592,016	$ 1,706	$ 1,703,331	$ 42,547	$ (1,155,568)