Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Income Statement [Abstract]
Net sales (including related party sales of $58,013, $14,576 and $13,805 in fiscal years 2015, 2014 and 2013, respectively)	$ 1,991,155	$ 1,467,202	$ 1,162,561
Cost of sales (including related party purchases of $227,562, $201,848 and $179,735 in fiscal years 2015, 2014 and 2013, respectively)	1,670,924	1,241,657	1,002,508
Gross profit	320,231	225,545	160,053
Operating expenses:
Research and development	100,257	84,257	75,208
Sales and marketing	48,851	38,012	33,785
General and administrative	24,377	23,017	23,902
Total operating expenses	173,485	145,286	132,895
Income from operations	146,746	80,259	27,158
Interest and other income, net	115	92	48
Interest expense	(965)	(757)	(610)
Income before income tax provision	145,896	79,594	26,596
Income tax provision	44,033	25,437	5,317
Net income	$ 101,863	$ 54,157	$ 21,279
Net income per common share:
Basic (in dollars per share)	$ 2.19	$ 1.24	$ 0.50
Diluted (in dollars per share)	$ 2.03	$ 1.16	$ 0.48
Weighted-average shares used in calculation of net income per common share:
Basic (in shares)	46,434	43,599	41,992
Diluted (in shares)	50,094	46,512	43,907