Revenue from Contracts with Customers - Summary of Disaggregated Revenue by Market and Product (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Revenues	$ 5,160,100	$ 3,316,616	$ 3,105,891
Networking | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	2,340,930	2,197,249	2,004,310
Materials | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	1,349,758	1,119,367	1,101,581
Lasers | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	1,469,412	0	0
Industrial
Disaggregation of Revenue [Line Items]
Revenues	1,761,621	746,763	644,876
Industrial | Networking | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	70,076	84,032	58,919
Industrial | Materials | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	603,664	662,731	585,957
Industrial | Lasers | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	1,087,881	0	0
Communications
Disaggregation of Revenue [Line Items]
Revenues	2,293,380	2,154,830	1,985,073
Communications | Networking | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	2,219,677	2,064,424	1,904,624
Communications | Materials | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	73,703	90,406	80,449
Communications | Lasers | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
Electronics
Disaggregation of Revenue [Line Items]
Revenues	625,639	310,374	378,577
Electronics | Networking | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	11,488	12,218	13,636
Electronics | Materials | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	614,151	298,156	364,941
Electronics | Lasers | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
Instrumentation
Disaggregation of Revenue [Line Items]
Revenues	479,460	104,649	97,365
Instrumentation | Networking | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	39,689	36,575	27,131
Instrumentation | Materials | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	58,240	68,074	70,234
Instrumentation | Lasers | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	$ 381,531	$ 0	$ 0