Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Income Statement [Abstract]
Net sales (including related party sales of $2,492 and $10,879 in the three months ended December 31, 2015 and 2014, respectively, and $7,712 and $37,457 in the six months ended December 31, 2015 and 2014, respectively)	$ 638,964	$ 503,014	$ 1,158,582	$ 946,336
Cost of sales (including related party purchases of $71,451 and $57,513 in the three months ended December 31, 2015 and 2014, respectively, and $130,712 and $111,916 in the six months ended December 31, 2015 and 2014, respectively)	532,602	418,562	980,005	792,691
Gross profit	106,362	84,452	178,577	153,645
Operating expenses:
Research and development	30,264	25,465	58,590	46,974
Sales and marketing	16,461	11,158	30,710	22,160
General and administrative	10,511	4,944	18,711	10,000
Total operating expenses	57,236	41,567	108,011	79,134
Income from operations	49,126	42,885	70,566	74,511
Interest and other income, net	24	36	111	71
Interest expense	(400)	(183)	(724)	(379)
Income before income tax provision	48,750	42,738	69,953	74,203
Income tax provision	14,061	11,496	21,565	22,098
Net income	$ 34,689	$ 31,242	$ 48,388	$ 52,105
Net income per common share:
Basic (in dollars per share)	$ 0.73	$ 0.68	$ 1.02	$ 1.14
Diluted (in dollars per share)	$ 0.67	$ 0.61	$ 0.94	$ 1.03
Weighted-average shares used in calculation of net income per common share:
Basic (in shares)	47,651	46,131	47,584	45,802
Diluted (in shares)	51,489	51,091	51,405	50,567