Condensed Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Condensed Consolidated Statements Of Income [Abstract]
Net revenue	$ 736,157	$ 651,100	$ 1,417,213	$ 1,239,380
Cost of sales	296,975	267,369	572,976	512,556
Amortization of acquired intangible assets	12,052	9,199	25,488	16,154
Total cost of sales	309,027	276,568	598,464	528,710
Gross profit	427,130	374,532	818,749	710,670
Operating expenses:
Selling, general and administrative	171,422	161,579	338,862	308,881
Research and development	49,943	43,111	97,976	81,902
Amortization of acquired intangible assets	8,556	6,641	13,599	12,553
Litigation settlement expenses	(600)		(600)
Acquisition related expenses		6,123		6,123
Total operating expenses	229,321	217,454	449,837	409,459
Income from operations	197,809	157,078	368,912	301,211
Other income (loss), net:
Interest income	202	678	650	1,600
Interest expense	(10,220)	(7,487)	(21,212)	(11,195)
Loss attributable to equity method investments (note 5)	(6,924)	(3,375)	(13,786)	(3,375)
Other, net	(2,115)	(621)	(5,225)	(3,086)
Total other income (loss), net	(19,057)	(10,805)	(39,573)	(16,056)
Income before income taxes	178,752	146,273	329,339	285,155
Income taxes	18,198	21,634	48,637	54,778
Net income	$ 160,554	$ 124,639	$ 280,702	$ 230,377
Basic earnings per share (note 11)	$ 1.11	$ 0.87	$ 1.95	$ 1.61
Diluted earnings per share (note 11)	1.10	0.86	1.93	1.60
Dividend declared per share	$ 0.39	$ 0.37	$ 0.78	$ 0.74
Basic shares outstanding (000's)	144,212	142,923	143,966	142,796
Diluted shares outstanding (000's)	145,575	144,349	145,479	144,418