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Segment Reporting
 3 Months Ended
Sep. 30, 2023
Segment Reporting [Abstract]  
Segment Reporting Segment Reporting
The Company reports its business segments using the “management approach” model for segment reporting. This means that we determine our reportable business segments based on the way the chief operating decision-maker organizes business segments within the Company for making operating decisions and assessing financial performance.
We report our financial results in the following three segments: (i) Networking, (ii) Materials, and (iii) Lasers. Our chief operating decision maker receives and reviews financial information based on these three segments. We evaluate business segment performance based upon segment operating income, which is defined as earnings before income taxes, interest and other income or expense. The segments are managed separately due to the market, production requirements and facilities unique to each segment.
The accounting policies are consistent across each segment. To the extent possible, our corporate expenses and assets are allocated to the segments.
The following tables summarize selected financial information of our operations by segment ($000):
Three Months Ended September 30, 2023
NetworkingMaterialsLasersUnallocated
& Other		Total
Revenues$472,849 $244,640 $335,594 $— $1,053,083 
Inter-segment revenues12,887 87,742 639 (101,268)— 
Operating income (loss)16,317 7,182 (44,807)— (21,308)
Interest expense— — — — (73,258)
Other income (expense), net— — — — 6,269 
Income tax benefit— — — — 20,763 
Net loss— — — — (67,534)
Depreciation and amortization40,436 25,287 72,636 — 138,359 
Expenditures for property, plant & equipment17,493 40,512 4,192 — 62,197 
Segment assets3,329,101 2,100,915 8,091,282 — 13,521,298 
Goodwill1,035,651 247,049 3,177,444 — 4,460,144 
Three Months Ended September 30, 2022
NetworkingMaterialsLasersUnallocated
& Other		Total
Revenues$596,548 $355,644 $392,378 $— $1,344,570 
Inter-segment revenues18,740 95,054 166 (113,960)— 
Operating income (loss)90,982 75,335 (123,841)— 42,476 
Interest expense— — — — (61,889)
Other income (expense), net— — — — (31,605)
Income tax benefit— — — — 12,320 
Net loss— — — — (38,698)
Depreciation and amortization42,774 26,527 77,985 — 147,286 
Expenditures for property, plant & equipment43,830 74,898 20,262 — 138,990