Marketable Securities (Tables)

3 Months Ended

Mar. 31, 2020

Marketable Securities

Summary of investments

The following table summarizes the Company’s investments as of March 31, 2020 (in thousands):

			Gross
	Amortized		Unrealized				Estimated
	Cost		Gains		Losses		Fair Value
Marketable securities available-for-sale:
U.S. Treasury obligations	$	64,980	$	234	$	—	$	65,214
Total available-for-sale securities	$	64,980	$	234	$	—	$	65,214

The following table summarizes the Company’s investments as of December 31, 2019 (in thousands):

			Gross
	Amortized		Unrealized				Estimated
	Cost		Gains		Losses		Fair Value
Marketable securities available-for-sale:
U.S. Treasury obligations	$	121,103	$	39	$	(2)	$	121,140
Total available-for-sale securities	$	121,103	$	39	$	(2)	$	121,140