Marketable Securities - Summary of Marketable Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 22,487	$ 29,907
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	22,487	29,907
Money Market Funds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	22,487	29,907
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	$ 22,487	$ 29,907

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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