v3.25.2
Segment and Geographic Reporting - Schedule of Financial Information by Segment (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Jun. 30, 2025
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2023
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues   $ 5,810,115 $ 4,707,688 $ 5,160,100
Cost of goods sold   3,586,038 3,026,773 3,195,122
Research and development   544,939 446,447 472,127
Selling, general and administrative   364,423 377,159 365,868
Segment profit   1,314,715 857,309 1,126,983
Corporate and centralized function costs   (277,771) (239,259) (199,811)
Share-based compensation   (160,972) (126,895) (149,631)
Restructuring costs and other   (160,081) (27,054) (119,101)
Impairment of assets held-for-sale   (84,988) 0 0
Integration, site consolidated and other costs   (38,237) (79,820) (81,503)
Amortization of intangibles   (302,788) (288,160) (414,125)
Interest expense   (243,251) (288,475) (286,872)
Purchase accounting adjustments       (157,500)
Transaction costs       (38,652)
Other (income) expense, net   47,554 44,707 (31,566)
Other       (3,780)
Earnings (loss) before income taxes   94,181 (147,647) (355,558)
Consulting and legal costs related to projects to integrate recent acquisitions   35,000 40,000 46,000
Employee severance and retention and other costs   2,000 40,000 36,000
Executive transition costs   1,000    
Networking        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues   3,421,276 2,295,729 2,340,930
Materials        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues   953,843 1,016,573 1,349,758
Lasers        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues   1,434,996 1,395,386 1,469,412
Impairment of assets held-for-sale $ (85,000)      
Operating Segments | Networking        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues   3,421,276 2,295,729 2,340,930
Cost of goods sold   2,507,154 1,747,317 1,701,681
Research and development   247,072 174,530 180,350
Selling, general and administrative   81,993 65,997 64,093
Segment profit   643,522 353,652 464,926
Operating Segments | Materials        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues   953,843 1,016,573 1,349,758
Cost of goods sold   856,668 914,691 1,061,062
Research and development   177,822 161,402 168,209
Selling, general and administrative   112,240 101,229 91,164
Segment profit   354,714 296,874 391,502
Operating Segments | Lasers        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues   1,434,996 1,395,386 1,469,412
Cost of goods sold   836,592 873,367 866,195
Research and development   120,045 110,515 123,568
Selling, general and administrative   170,190 209,933 210,611
Segment profit   316,479 206,783 270,555
Unallocated        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues   0 0 0
Cost of goods sold   (614,376) (508,602) (433,816)
Research and development   0 0 0
Selling, general and administrative   0 0 0
Segment profit   0 0 0
Inter-segment revenues        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues   (614,376) (508,602) (433,816)
Inter-segment revenues | Networking        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues   (58,465) (45,767) (70,120)
Inter-segment revenues | Materials        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues   (547,601) (457,623) (362,179)
Inter-segment revenues | Lasers        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues   $ (8,310) $ (5,212) $ (1,517)