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Segment Information - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) | 12 Months Ended
--- | ---
Jul. 31, 2025 | Jul. 31, 2024 | Jul. 31, 2023
Segment Reporting Information [Line Items] |  |  |
Net sales | $ 499,528,000 | $ 540,403,000 | $ 549,994,000
Cost of sales | 371,654,000 | 383,224,000 | 365,534,000
Selling, general and administrative | 143,487,000 | 123,198,000 | 120,003,000
Research and development | 17,408,000 | 24,077,000 | 48,631,000
Amortization of intangibles | 21,723,000 | 21,154,000 | 21,396,000
Impairment of long-lived assets, including goodwill | 79,555,000 | 64,525,000 | 0
Segment operating (loss) income | (139,098,000) | (79,890,000) | (14,660,000)
Unallocated corporate expenses | 46,827,000 | 44,442,000 | 32,934,000
Proxy solicitation costs | 2,682,000 | 0 | 0
CEO transition costs | 2,117,000 | 2,916,000 | 9,090,000
Interest expense | 45,650,000 | 22,153,000 | 14,961,000
Interest (income) and other | 155,000 | 678,000 | 1,226,000
Write-off of deferred financing costs and debt discounts | 8,977,000 | 1,832,000 | 0
Change in fair value of warrants and derivatives | (38,498,000) | (4,273,000) | 0
Loss before income taxes | (155,382,000) | (100,280,000) | (30,847,000)
Purchases of property, plant and equipment | 8,154,000 | 11,459,000 | 17,319,000
Consolidated purchases of property, plant and equipment | 8,565,000 | 13,083,000 | 18,311,000
Depreciation expense | 11,310,000 | 11,794,000 | 11,758,000
Consolidated depreciation expense |  |  | 11,922,000
Consolidated depreciation expense | 11,798,000 | 12,159,000 | 11,917,000
Total segment assets | 703,665,000 | 878,205,000 | 975,483,000
Consolidated assets | 740,835,000 | 912,434,000 | 996,237,000
Satellite and Space Communications |  |  |
Segment Reporting Information [Line Items] |  |  |
Purchases of property, plant and equipment | 338,000 | 2,890,000 | 7,244,000
Depreciation expense | 8,300,000 | 3,867,000 | 4,121,000
Total segment assets | 249,465,000 | 421,780,000 | 515,449,000
Allerium |  |  |
Segment Reporting Information [Line Items] |  |  |
Purchases of property, plant and equipment | 7,816,000 | 8,569,000 | 10,075,000
Depreciation expense | 3,010,000 | 7,927,000 | 7,637,000
Total segment assets | 454,200,000 | 456,425,000 | 460,034,000
Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 499,528,000 | 540,403,000 | 549,994,000
Segment operating (loss) income | (87,472,000) | (32,532,000) | 27,364,000
Operating Segments | Satellite and Space Communications |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 269,265,000 | 324,069,000 | 337,756,000
Cost of sales | 227,786,000 | 245,346,000 | 241,544,000
Selling, general and administrative | 60,699,000 | 48,799,000 | 51,505,000
Research and development | 5,590,000 | 12,916,000 | 22,354,000
Amortization of intangibles | 7,254,000 | 6,685,000 | 7,312,000
Impairment of long-lived assets, including goodwill | 79,555,000 | 64,525,000 |
Segment operating (loss) income | (111,619,000) | (54,202,000) | 15,041,000
Operating Segments | Allerium |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 230,263,000 | 216,334,000 | 212,238,000
Cost of sales | 143,475,000 | 137,100,000 | 123,670,000
Selling, general and administrative | 36,602,000 | 32,475,000 | 36,920,000
Research and development | 11,570,000 | 10,620,000 | 25,241,000
Amortization of intangibles | 14,469,000 | 14,469,000 | 14,084,000
Impairment of long-lived assets, including goodwill | 0 | 0 |
Segment operating (loss) income | 24,147,000 | 21,670,000 | 12,323,000
Unallocated |  |  |
Segment Reporting Information [Line Items] |  |  |
CEO transition costs | 2,117,000 |  |
Unallocated purchases of property, plant and equipment | 411,000 | 1,624,000 | 992,000
Unallocated depreciation expense | 488,000 | 365,000 | 164,000
Unallocated assets | $ 37,170,000 | $ 34,229,000 | $ 20,754,000

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