Fair Value Measurements - Additional Information (Details) - USD ($) |
Dec. 31, 2019 |
Dec. 31, 2018 |
|---|---|---|
| Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
| Transfers between levels | $ 0 | $ 0 |
| Cash and Cash Equivalents | Level 1 | ||
| Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
| Investments, fair value | $ 10,100,000 |