Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Consolidated Statements Of Income [Abstract]
Net revenue	$ 2,340,196	$ 2,066,737	$ 1,838,713
Cost of sales (excluding amortization of acquired intangible assets)	978,032	864,992	772,216
Gross profit	1,362,164	1,201,745	1,066,497
Operating expenses:
Selling, general and administrative	600,369	553,968	488,057
Research and development	155,149	144,467	118,651
Amortization of acquired intangible assets	46,383	46,578	23,923
Restructuring expenses (note 23)	18,432	12,358	6,914
Litigation settlement expenses (note 24)		8,500
Acquisition related expenses (note 20)		10,076
Total operating expenses	820,333	775,947	637,545
Income from operations	541,831	425,798	428,952
Other income (loss), net:
Interest income	16,378	17,085	16,860
Interest expense	(28,355)	(28,236)	(11,206)
Other, net	(8,542)	4,096	4,960
Total other income (loss), net	(20,519)	(7,055)	10,614
Income before income taxes	521,312	418,743	439,566
Income taxes	205,724	76,459	87,157
Net income	$ 315,588	$ 342,284	$ 352,409
Basic earnings per share (note 12)	$ 2.21	$ 2.42	$ 2.51
Diluted earnings per share (note 12)	2.19	2.40	2.49
Dividend declared per share	$ 1.40	$ 1.32	$ 1.20
Basic shares outstanding (000's)	142,764	141,360	140,242
Diluted shares outstanding (000's)	143,987	142,453	141,669