Restructuring Plans- Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Restructuring Cost and Reserve [Line Items]
Restructuring charges (recoveries)			$ 43,002	$ 4,858
Corporate Segment
Restructuring Cost and Reserve [Line Items]
Restructuring charges (recoveries)	$ 73,769	$ 11,530	106,154	12,978
2023 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges (recoveries)	11,000	12,000	43,000	13,000
2023 Plan | Operating Segments | Materials
Restructuring Cost and Reserve [Line Items]
Restructuring charges (recoveries)	2,000	8,000	29,000	15,000
2023 Plan | Operating Segments | Networking
Restructuring Cost and Reserve [Line Items]
Restructuring charges (recoveries)	8,000	0	11,000	(5,000)
2023 Plan | Operating Segments | Lasers
Restructuring Cost and Reserve [Line Items]
Restructuring charges (recoveries)	1,000	$ 4,000	3,000	$ 4,000
2023 Plan | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring accrual, current	14,000		14,000
Restructuring accrual, noncurrent	33,000		33,000
2025 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges (recoveries)	63,000
2025 Plan | Operating Segments | Materials
Restructuring Cost and Reserve [Line Items]
Restructuring charges (recoveries)	32,000
2025 Plan | Operating Segments | Networking
Restructuring Cost and Reserve [Line Items]
Restructuring charges (recoveries)	17,000
2025 Plan | Operating Segments | Lasers
Restructuring Cost and Reserve [Line Items]
Restructuring charges (recoveries)	12,000
2025 Plan | Corporate Segment
Restructuring Cost and Reserve [Line Items]
Restructuring charges (recoveries)	2,000
2025 Plan | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring accrual, current	$ 19,000		$ 19,000