Goodwill and Other Intangible Assets - Changes in Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Goodwill [Roll Forward]
Balance-beginning of period	$ 1,296,727	$ 1,239,009
Goodwill acquired	0	54,634
Finisar measurement period adjustments	0	(4,901)
Foreign currency translation	(10,968)	7,985
Balance-end of period	1,285,759	1,296,727
Photonic Solutions
Goodwill [Roll Forward]
Balance-beginning of period	1,053,028	1,052,494
Goodwill acquired	0	0
Finisar measurement period adjustments	0	(4,901)
Foreign currency translation	(4,285)	5,435
Balance-end of period	1,048,743	1,053,028
Compound Semiconductors
Goodwill [Roll Forward]
Balance-beginning of period	243,699	186,515
Goodwill acquired	0	54,634
Finisar measurement period adjustments	0	0
Foreign currency translation	(6,683)	2,550
Balance-end of period	$ 237,016	$ 243,699