| Schedule of Stockholder's Deficit |
| | | | (In millions) | | June 30, 2025 | Shares issued through at-the-market offering | | | 17.1 | At-the-market offering gross proceeds | | $ | 63.0 | Sales agent fees paid | | $ | 0.6 | Other third-party issuance costs incurred | | $ | 0.3 | Other third-party issuance costs paid | | $ | 1.5 |
| | | | (In millions) | | June 30, 2024 | Shares issued through at-the-market offering | | | 72.5 | At-the-market offering gross proceeds | | $ | 250.0 | Sales agent fees paid | | $ | 6.3 | Other third-party issuance costs incurred | | $ | 0.6 | Other third-party issuance costs paid | | $ | 0.7 |
| | | | | | | | | | | | | | | | | | | | | | | | Accumulated | | | | | | | Class A Voting | | Additional | | Other | | | | Total | | | Common Stock | | Paid-in | | Comprehensive | | Accumulated | | Stockholders’ | (In millions, except share data) | | Shares | | Amount | | Capital | | Loss | | Deficit | | Deficit | Balances December 31, 2024 | | 414,417,797 | | $ | 4.1 | | $ | 6,714.2 | | $ | (132.0) | | $ | (8,346.8) | | $ | (1,760.5) | Net loss | | — | | | — | | | — | | | — | | | (202.1) | | | (202.1) | Other comprehensive income | | — | | | — | | | — | | | 52.7 | | | — | | | 52.7 | Taxes paid for restricted unit withholdings | | — | | | — | | | (4.4) | | | — | | | — | | | (4.4) | Share issuances | | 17,052,756 | | | 0.2 | | | 170.6 | | | — | | | — | | | 170.8 | Stock-based compensation (1) | | 1,673,008 | | | — | | | 5.7 | | | — | | | — | | | 5.7 | Balances March 31, 2025 | | 433,143,561 | | $ | 4.3 | | $ | 6,886.1 | | $ | (79.3) | | $ | (8,548.9) | | $ | (1,737.8) | Net loss | | — | | | — | | | — | | | — | | | (4.7) | | | (4.7) | Other comprehensive income | | — | | | — | | | — | | | 11.1 | | | — | | | 11.1 | Stock-based compensation | | — | | | — | | | 6.0 | | | — | | | — | | | 6.0 | Balances June 30, 2025 | | 433,143,561 | | $ | 4.3 | | $ | 6,892.1 | | $ | (68.2) | | $ | (8,553.6) | | $ | (1,725.4) |
| (1) | Includes 370,586 Common Stock shares awarded to the Board of Directors, and 1,302,422 vested Common Stock RSUs and PSUs. |
| | | | | | | | | | | | | | | | | | | | | | | | Accumulated | | | | | | | Class A | | Additional | | Other | | | | Total | | | Common Stock | | Paid-in | | Comprehensive | | Accumulated | | Stockholders’ | (In millions, except share data) | | Shares | | Amount | | Capital | | Loss | | Deficit | | Deficit | Balances December 31, 2023 | | 260,574,392 | | $ | 2.6 | | $ | 6,221.9 | | $ | (78.2) | | $ | (7,994.2) | | $ | (1,847.9) | Net loss | | — | | | — | | | — | | | — | | | (163.5) | | | (163.5) | Other comprehensive loss | | — | | | — | | | — | | | (35.4) | | | — | | | (35.4) | Debt for equity exchange | | 2,541,250 | | | — | | | 14.2 | | | — | | | — | | | 14.2 | Taxes paid for restricted unit withholdings | | — | | | — | | | (2.2) | | | — | | | — | | | (2.2) | Share issuance costs | | — | | | — | | | (0.5) | | | — | | | — | | | (0.5) | Stock-based compensation (1) | | 489,342 | | | — | | | 4.3 | | | — | | | — | | | 4.3 | Balances March 31, 2024 | | 263,604,984 | | $ | 2.6 | | $ | 6,237.7 | | $ | (113.6) | | $ | (8,157.7) | | $ | (2,031.0) | Net loss | | — | | | — | | | — | | | — | | | (32.8) | | | (32.8) | Other comprehensive income | | — | | | — | | | — | | | 2.8 | | | — | | | 2.8 | Debt for equity exchange | | 25,004,075 | | | 0.3 | | | 116.1 | | | — | | | — | | | 116.4 | Share issuance | | 72,549,972 | | | 0.7 | | | 242.9 | | | — | | | — | | | 243.6 | Stock-based compensation (1) | | 195,924 | | | — | | | 4.4 | | | — | | | — | | | 4.4 | Balances June 30, 2024 | | 361,354,955 | | $ | 3.6 | | $ | 6,601.1 | | $ | (110.8) | | $ | (8,190.5) | | $ | (1,696.6) |
| (1) | Includes 195,924 Common Stock shares awarded to the Board of Directors and 489,342 vested Common Stock RSUs and PSUs. |
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| Schedule of Nonvested RSU, PSU and SPSU Activity |
| | | | | | | | | | Weighted | | | | | Average | | | Common Stock | | Grant Date | | | RSUs and PSUs | | Fair Value | Nonvested at January 1, 2025 | | 3,876,114 | | $ | 7.92 | Granted (1) | | 5,422,243 | | | 3.57 | Granted - Special Award | | 265,912 | | | 3.57 | Vested | | (1,161,440) | | | 8.33 | Vested - Special Award | | (140,982) | | | 3.57 | Forfeited | | (322,900) | | | 5.83 | Cancelled (2) | | (1,052,237) | | | 8.62 | Cancelled - Special Award (2) | | (124,930) | | | 3.57 | Nonvested at June 30, 2025 | | 6,761,780 | | | 4.35 | Tranche Years 2026 and 2027 awarded under the 2025 PSU award and Tranche Year 2026 awarded under the 2024 PSU award with grant date fair values to be determined in year 2026 and 2027, respectively | | 3,000,921 | | | | Total nonvested at June 30, 2025 | | 9,762,701 | | | |
| (1) | The number of PSU shares granted under the Tranche Year 2025 assumes the Company will attain a performance target at 100% for the Adjusted EBITDA target, 100% for the free cash flow target, and 200% for the strategic initiatives. The number of PSU shares granted under the Tranche Year 2026 assumes the Company will attain a performance target at 100% for the strategic initiatives. |
| (2) | Represents vested RSUs and PSUs surrendered in lieu of taxes. As a result, the Company paid taxes for restricted unit withholdings of approximately $4.4 million during the six months ended June 30, 2025. |
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