Condensed Consolidated Statements Of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Income Statement [Abstract]
Net sales (including related party sales of $3,418 and $3,600 in the three months ended March 31, 2014 and 2013, respectively, and $10,805 and $9,390 in the nine months ended March 31, 2014 and 2013, respectively)	$ 373,755	$ 278,034	$ 1,039,133	$ 840,228
Cost of sales (including related party purchases of $45,398 and $44,765 in the three months ended March 31, 2014 and 2013, respectively, and $145,139 and $132,704 in the nine months ended March 31, 2014 and 2013, respectively)	316,491	239,141	879,985	726,198
Gross profit	57,264	38,893	159,148	114,030
Operating expenses:
Research and development	20,570	18,606	61,234	55,651
Sales and marketing	9,416	8,713	27,257	25,424
General and administrative	5,806	6,134	16,938	18,225
Total operating expenses	35,792	33,453	105,429	99,300
Income from operations	21,472	5,440	53,719	14,730
Interest and other income, net	10	2	73	24
Interest expense	(156)	(142)	(535)	(449)
Income before income tax provision	21,326	5,300	53,257	14,305
Income tax provision (benefit)	4,752	(1,740)	15,649	1,452
Net income	$ 16,574	$ 7,040	$ 37,608	$ 12,853
Net income per common share:
Basic (Per Share)	$ 0.38	$ 0.17	$ 0.87	$ 0.31
Diluted (Per Share)	$ 0.35	$ 0.16	$ 0.82	$ 0.29
Weighted-average shares used in calculation of net income per common share:
Basic (Shares)	43,992	42,147	43,128	41,901
Diluted (Shares)	47,424	44,148	45,857	43,921