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Revenue from Contracts with Customers - Schedule of Disaggregated Revenue by Market (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Disaggregation of Revenue [Line Items]
Revenues	$ 1,497,879	$ 1,208,809	$ 4,280,679	$ 3,393,326
Industrial
Disaggregation of Revenue [Line Items]
Revenues	439,546	421,178	1,283,931	1,248,880
Communications
Disaggregation of Revenue [Line Items]
Revenues	896,989	615,791	2,494,379	1,595,651
Electronics
Disaggregation of Revenue [Line Items]
Revenues	65,720	73,613	220,183	252,134
Instrumentation
Disaggregation of Revenue [Line Items]
Revenues	95,624	98,227	282,186	296,661
Networking
Disaggregation of Revenue [Line Items]
Revenues	897,317	618,824	2,476,102	1,615,908
Networking | Industrial
Disaggregation of Revenue [Line Items]
Revenues	15,290	16,361	43,521	47,072
Networking | Communications
Disaggregation of Revenue [Line Items]
Revenues	872,807	593,223	2,404,825	1,538,847
Networking | Electronics
Disaggregation of Revenue [Line Items]
Revenues	1,948	1,643	5,912	4,820
Networking | Instrumentation
Disaggregation of Revenue [Line Items]
Revenues	7,272	7,597	21,844	25,169
Materials
Disaggregation of Revenue [Line Items]
Revenues	236,672	238,982	717,574	737,300
Materials | Industrial
Disaggregation of Revenue [Line Items]
Revenues	135,640	134,516	381,667	404,847
Materials | Communications
Disaggregation of Revenue [Line Items]
Revenues	24,182	22,568	89,554	56,804
Materials | Electronics
Disaggregation of Revenue [Line Items]
Revenues	63,790	71,970	214,271	247,314
Materials | Instrumentation
Disaggregation of Revenue [Line Items]
Revenues	13,060	9,928	32,082	28,335
Lasers
Disaggregation of Revenue [Line Items]
Revenues	363,890	351,003	1,087,003	1,040,118
Lasers | Industrial
Disaggregation of Revenue [Line Items]
Revenues	288,616	270,301	858,743	796,961
Lasers | Communications
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Lasers | Electronics
Disaggregation of Revenue [Line Items]
Revenues	(18)	0	0	0
Lasers | Instrumentation
Disaggregation of Revenue [Line Items]
Revenues	$ 75,292	$ 80,702	$ 228,260	$ 243,157

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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