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Marketable Securities (Tables)

12 Months Ended

Dec. 31, 2020

Marketable Securities

Summary of investments

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


					Gross
		Amortized			Unrealized						Estimated
		Cost			Gains			Losses			Fair Value
Marketable securities available-for-sale:
U.S. Treasury obligations		$	180,675		$	7		$	(9)		$	180,673
Total available-for-sale securities		$	180,675		$	7		$	(9)		$	180,673

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