Fair Value of Financial Assets and Liabilities (Tables)

3 Months Ended

Mar. 31, 2020

Fair Value of Financial Assets and Liabilities

Schedule of financial assets and liabilities measured at fair value on a recurring basis

	Fair value Measurements as of
	March 31, 2020 using:
	Level 1		Level 2		Level 3		Total
Assets:
Cash Equivalents:
Money Market Funds	$	51,714	$	—	$	—	$	51,714
Marketable Securities:
Corporate Debt Securities and Commercial Paper		—		201,648		—		201,648
Total	$	51,714	$	201,648	$	—	$	253,362

	Fair value Measurements as of
	December 31, 2019 using:
	Level 1		Level 2		Level 3		Total
Assets:
Cash Equivalents:
Corporate Debt Securities and Commercial Paper	$	—	$	8,885	$	—	$	8,885
Money Market Funds		53,014		—		—		53,014
Marketable Securities:
Corporate Debt Securities and Commercial Paper		—		230,165		—		230,165
Total	$	53,014	$	239,050	$	—	$	292,064

Schedule of marketable securities

	March 31, 2020
			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
	Cost		Gains		Losses		Value
Assets
Corporate debt securities and commercial paper (due within 1 year)	$	201,575	$	348	$	(275)	$	201,648
	$	201,575	$	348	$	(275)	$	201,648

	December 31, 2019
			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
	Cost		Gains		Losses		Value
Assets
Corporate debt securities and commercial paper (due within 1 year)	$	230,155	$	54	$	(44)	$	230,165
	$	230,155	$	54	$	(44)	$	230,165