Consolidated Statements Of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Consolidated Statements Of Income [Abstract]
Net revenue	$ 1,514,457	$ 1,368,515	$ 1,243,148
Cost of sales	573,800	547,780	501,822
Gross profit	940,657	820,735	741,326
Operating expenses:
Selling, general and administrative	430,802	402,621	372,249
Research and development	120,124	109,733	92,007
Education, research and settlement charge (note 23)	24,765
Amortization of acquired intangible assets	10,142	13,974	10,146
Total operating expenses	585,833	526,328	474,402
Income from operations	354,824	294,407	266,924
Other income, net:
Interest income	38,873	33,866	27,801
Interest expense	(6,387)	(4,786)	(1,758)
Other, net (note 13)	(2,191)	8,458	10,740
Total other income, net	30,295	37,538	36,783
Income before income taxes	385,119	331,945	303,707
Income taxes (note 14)	77,986	77,095	76,721
Net income	$ 307,133	$ 254,850	$ 226,986
Basic earnings per share	$ 2.15	$ 1.75	$ 1.49
Diluted earnings per share (note 4)	$ 2.10	$ 1.71	$ 1.44
Dividend declared per share	$ 0.68
Basic shares outstanding	142,954	145,901	152,471
Diluted shares outstanding	146,410	149,316	157,195