Income Taxes - Schedule of Deferred Tax Assets (Liabilities) (Details) - USD ($) $ in Millions |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Deferred tax assets: | ||
| Net operating loss | $ 1,084.8 | $ 1,039.5 |
| Accruals and reserves | 36.0 | 65.1 |
| R&D credit | 89.1 | 81.9 |
| Accrued legal and professional fees | 9.5 | 2.9 |
| Non-qualified stock options | 96.3 | 95.0 |
| Restricted stock options | 9.4 | 11.8 |
| Disallowed interest carryover | 97.5 | 68.8 |
| Intangible amortization | 47.4 | 51.1 |
| Capitalized R&E | 77.7 | 119.4 |
| Inventory capitalization | 28.6 | 52.0 |
| Lease liability | 105.4 | 115.8 |
| Deferred revenue | 4.6 | 7.9 |
| Construction in progress | 6.5 | 26.3 |
| Property and equipment | 1.1 | 0.0 |
| Other | 5.2 | 4.4 |
| Total deferred tax assets: | 1,699.1 | 1,741.9 |
| Valuation allowance | (1,620.5) | (1,647.4) |
| Deferred tax liabilities: | ||
| Prepaid expenses | (2.2) | (2.4) |
| Property and equipment | 0.0 | (6.2) |
| Right-of-use assets | (72.0) | (81.4) |
| Convertible securities | (3.7) | (4.2) |
| Other | (0.5) | (0.1) |
| Total deferred tax liabilities: | (78.4) | (94.3) |
| Deferred tax assets, net | $ 0.2 | $ 0.2 |
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- Definition Deferred Tax Asset, Operating Lease, Liability No definition available.
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- Definition Deferred Tax Assets, Capitalized R&E No definition available.
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- Definition Deferred Tax Assets, Intangible Amortization No definition available.
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- Definition Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Non-Qualified Stock Options No definition available.
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- Definition Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Restricted Stock Options No definition available.
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- Definition Deferred Tax Assets, Tax Deferred Expense, Legal And Professional Fees No definition available.
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- Definition Deferred Tax Assets, Tax Deferred Expense, Reserves And Accruals, Construction In Progress No definition available.
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- Definition Deferred Tax Liability, Operating Lease, Right-Of-Use Asset No definition available.
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- Definition Amount of deferred tax liability attributable to taxable temporary differences. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible interest carryforward. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from deferred income. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from inventory. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from property, plant, and equipment. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible research tax credit carryforwards. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from accrued liabilities. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount of deferred tax liability attributable to taxable temporary differences from financing arrangements. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of deferred tax liability attributable to taxable temporary differences classified as other. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of deferred tax consequences attributable to taxable temporary differences derived from prepaid expenses. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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