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Segment Reporting - Schedule of Segment Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Jun. 30, 2024
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total assets	$ 14,444,825	$ 14,488,634
Operating Segments | Networking
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total assets	3,752,339	3,472,866
Operating Segments | Materials
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total assets	2,864,492	3,017,858
Operating Segments | Lasers
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total assets	7,233,471	7,361,731
Corporate and shared services
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total assets	$ 594,523	$ 636,179

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Amount of asset recognized for present right to economic benefit.

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