Income Taxes - Additional Information (Details) - USD ($) |
3 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|
Mar. 31, 2021 |
Mar. 31, 2020 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
|
| Income Tax Disclosure [Abstract] | |||||
| Effective tax rate | 0.00% | 0.00% | |||
| Uncertain tax position | $ 0 | ||||
| Interest and penalties accrued | $ 0 | $ 0 | |||
| Effective income tax rate reconciliation, non-deductible interest expense | $ 31,100,000 | $ 16,700,000 | |||
| Operating loss carryforwards | 725,800,000 | 636,000,000 | $ 295,100,000 | ||
| Operating loss carryforwards expiration year | 2033 | ||||
| Deferred tax assets operating loss carryforwards and valuation allowance | $ 163,200,000 | $ 144,600,000 | |||