Quarterly Financial Data (unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Quarterly Financial Information Disclosure [Abstract]
Net revenues	$ 746,290	$ 627,041	$ 666,331	$ 340,409	$ 362,728	$ 342,496	$ 342,839	$ 314,433	$ 2,380,071	$ 1,362,496	$ 1,158,794
Cost of goods sold	444,153	381,108	517,991	217,269	224,076	215,212	211,333	190,526	1,560,521	841,147	696,591
Internal research and development	100,489	94,764	107,700	36,120	36,202	36,026	33,764	33,171	339,073	139,163	116,875
Selling, general and administrative	134,152	82,133	119,218	105,495	61,731	60,128	58,136	53,523	440,998	233,518	208,565
Interest expense	25,521	28,530	28,390	6,968	5,606	5,647	5,580	5,584	89,409	22,417	18,352
Other expense (income) - net	(1,264)	(7,168)	(487)	(5,079)	(384)	1,532	701	713	(13,998)	2,562	3,783
Earnings (loss) before income taxes	40,711	33,338	(107,455)	(30,522)	34,729	27,015	34,727	32,342	(63,928)	128,813	122,194
Income taxes	(10,550)	27,417	(9,242)	(4,524)	6,701	2,377	6,025	6,193	3,101	21,296	34,192
Net Earnings (Loss)	$ 51,261	$ 5,921	$ (98,213)	$ (25,998)	$ 28,028	$ 24,638	$ 28,702	$ 26,149	$ (67,029)	$ 107,517	$ 88,002
Basic earnings (loss) per common share (in usd per share)	$ 0.56	$ 0.07	$ (1.08)	$ (0.39)	$ 0.44	$ 0.39	$ 0.45	$ 0.41	$ (0.79)	$ 1.69	$ 1.41
Diluted earnings per common share (in usd per share)	$ 0.53	$ 0.06	$ (1.08)	$ (0.39)	$ 0.43	$ 0.38	$ 0.44	$ 0.40	$ (0.79)	$ 1.63	$ 1.35