Consolidated Statements Of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Consolidated Statements Of Income [Abstract]
Net revenue	$ 1,554,973	$ 1,514,457	$ 1,368,515
Cost of sales	565,187	573,800	547,780
Gross profit	989,786	940,657	820,735
Operating expenses:
Selling, general and administrative	450,414	430,802	402,621
Research and development	118,226	120,124	109,733
Restructuring expenses (note 23)	6,326
Education, research and settlement charge (note 23)		24,765
Amortization of acquired intangible assets	9,733	10,142	13,974
Total operating expenses	584,699	585,833	526,328
Income from operations	405,087	354,824	294,407
Other income, net:
Interest income, net	31,236	38,873	33,866
Interest expense	(6,129)	(6,387)	(4,786)
Other, net (note 13)	884	(2,191)	8,458
Total other income, net	25,991	30,295	37,538
Income before income taxes	431,078	385,119	331,945
Income taxes (note 14)	85,805	77,986	77,095
Net income	$ 345,273	$ 307,133	$ 254,850
Basic earnings per share	$ 2.44	$ 2.15	$ 1.75
Diluted earnings per share (note 4)	$ 2.39	$ 2.10	$ 1.71
Dividend declared per share	$ 1.00	$ 0.68
Basic shares outstanding	141,474	142,954	145,901
Diluted shares outstanding	144,359	146,410	149,316