Fair Value - Additional Information (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended |
|---|---|---|
Mar. 31, 2020 |
Dec. 31, 2019 |
|
| Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
| Impairment of operating lease right of use assets | $ 0 | $ 900 |
| Money Market Fund | Level 1 | ||
| Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
| Cash equivalents | $ 1,800 | $ 51,700 |