Short-Term Investments - Summary of Short Term Investments (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Schedule Of Cash Cash Equivalents And Available For Sale Securities [Line Items]
Cash equivalents and short-term investments, Amortized Cost	$ 208,431
Cash equivalents and short-term investments, Unrealized Gains	183
Cash equivalents and short-term investments, Fair Value	208,614
Commercial Paper
Schedule Of Cash Cash Equivalents And Available For Sale Securities [Line Items]
Cash equivalents and short-term investments, Amortized Cost	41,259
Cash equivalents and short-term investments, Fair Value	41,259
Asset-backed Securities
Schedule Of Cash Cash Equivalents And Available For Sale Securities [Line Items]
Cash equivalents and short-term investments, Amortized Cost	14,866
Cash equivalents and short-term investments, Unrealized Gains	10
Cash equivalents and short-term investments, Fair Value	14,876
U.S Treasury Securities
Schedule Of Cash Cash Equivalents And Available For Sale Securities [Line Items]
Cash equivalents and short-term investments, Amortized Cost	59,926
Cash equivalents and short-term investments, Unrealized Gains	45
Cash equivalents and short-term investments, Fair Value	59,971
Corporate Debt Securities
Schedule Of Cash Cash Equivalents And Available For Sale Securities [Line Items]
Cash equivalents and short-term investments, Amortized Cost	92,380
Cash equivalents and short-term investments, Unrealized Gains	128
Cash equivalents and short-term investments, Fair Value	$ 92,508