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Stock Based Compensation - Stock Compensation Plans (Details) | 3 Months Ended | 9 Months Ended | 12 Months Ended
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Dec. 31, 2024 USD ($) shares | Dec. 31, 2023 USD ($) shares | Jun. 30, 2022 $ / shares | Dec. 31, 2024 USD ($) installment $ / shares shares | Dec. 31, 2023 USD ($) shares | Mar. 31, 2024 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Stock-based compensation | $ |  |  |  | $ 40,794,000 | $ 33,163,000 |
Number of equal annual vesting installments | installment |  |  |  | 3 |  |
Options outstanding, number of underlying shares (in shares) | shares | 1,578,000 |  |  | 1,578,000 |  | 1,578,000
Employees and Non-Employee Directors |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Stock-based compensation | $ | $ 10,700,000 | $ 8,300,000 |  | $ 36,200,000 | 28,600,000 |
Unrecognized compensation costs | $ | 62,400,000 |  |  | $ 62,400,000 |  |
Unrecognized compensation costs, period for recognition |  |  |  | 2 years 1 month 2 days |  |
Marketing and Consulting Partners |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Unrecognized compensation costs | $ | 65,800,000 |  |  | $ 65,800,000 |  |
Unrecognized compensation costs, period for recognition |  |  |  | 9 years 7 months 17 days |  |
Share based compensation | $ | $ 1,900,000 | $ 2,200,000 |  | $ 5,600,000 | $ 7,000,000.0 |
Stock option |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Contractual term |  |  |  | 10 years |  |
Deferred Stock Units |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Options outstanding, number of underlying shares (in shares) | shares | 1,000,000 |  |  | 1,000,000 |  |
Performance Based Restricted Stock Units, Granted in Fiscal 2025 |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share based compensation | $ | $ 1,000,000 |  |  | $ 2,300,000 |  |
Performance Based Restricted Stock Units, Granted in Fiscal 2024 and Fiscal 2023 |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share based compensation | $ | $ 0 |  |  | 0 |  |
2005 Plan |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Fair value of stock awards | $ |  |  |  | $ 150,000 |  |
Vesting percentage | 100.00% |  |  | 100.00% |  |
2005 Plan | Class A Common Stock |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of shares available for grant (in shares) | shares | 8,300,000 |  |  | 8,300,000 |  |
2005 Plan | Common Class C |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of shares available for grant (in shares) | shares | 28,300,000 |  |  | 28,300,000 |  |
2005 Plan | Performance Based Restricted Stock Units | Certain Executives and Key Employees |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Shares granted (in shares) | shares |  |  |  | 2,300,000 |  |
2005 Plan | Performance Based Restricted Stock Units | President and CEO |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share based compensation | $ | $ 500,000 |  |  | $ 1,200,000 |  |
Shares granted (in shares) | shares |  |  |  | 2,000,000 |  |
Shares granted (in dollars per share) | $ / shares |  |  |  | $ 4.13 |  |
2005 Plan | Performance Based Restricted Stock Units, Granted in Fiscal 2025 | Certain Executives and Key Employees |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Shares granted (in dollars per share) | $ / shares |  |  |  | $ 6.85 |  |
2005 Plan | Performance Based Restricted Stock Units, Granted in Fiscal 2024 | Certain Executives and Key Employees |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Shares granted (in dollars per share) | $ / shares |  |  |  |  |  | $ 6.93
2005 Plan | Performance Based Restricted Stock Units, Granted in Fiscal 2023 | Certain Executives and Key Employees |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Shares granted (in dollars per share) | $ / shares |  |  | $ 9.13 |  |  |
2005 Plan | Minimum |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Award vesting period (over) |  |  |  | 2 years |  |
2005 Plan | Maximum |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Award vesting period (over) |  |  |  | 5 years |  |
Director Compensation Plan |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Fair value of stock awards | $ |  |  |  | $ 100,000 |  |
Obligation to issue share (in shares) | shares | 1 |  |  | 1 |  |
Period shares delivered following termination of director's service |  |  |  | 6 months |  |
ESPPs |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
ESPP discount rate from fair market value |  |  |  | 15.00% |  |
ESPPs | Class A Common Stock |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of shares available for grant (in shares) | shares | 2,700,000 |  |  | 2,700,000 |  |
ESPPs | Common Class C |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of shares available for grant (in shares) | shares | 2,300,000 |  |  | 2,300,000 |  |
ESPP shares granted during period (in shares) | shares | 100,000 | 100,000 |  | 300,000 | 400,000 |

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