Related-Party Transactions - Additional Information (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Mar. 31, 2021 |
Mar. 31, 2020 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Net medical claims incurred | $ 214,432 | $ 146,328 | $ 590,468 | $ 450,645 |
| CarePoint Health Contract [Member] | ||||
| Net medical claims incurred | $ 3,200 | $ 2,700 | $ 11,100 | $ 9,700 |