Cash, Cash Equivalents and Investments (Tables)

12 Months Ended

Dec. 31, 2021

Cash and Cash Equivalents [Abstract]

Summary of Cash, Cash Equivalents and Investments

A summary of the cash equivalents and investments as of December 31, 2021 is as follows:

Cash Equivalents:	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Money market funds	$	170,907	$	—	$	—	$	170,907
Certificates of deposit	25,090		—		—		25,090
	$	195,997	$	—	$	—	$	195,997

Investments:	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Corporate bonds and commercial paper	$	44,282	$	3	$	(66)	$	44,219
Certificates of deposit	12,161		—		—		12,161
U.S. government securities	48,658		—		(160)		$	48,498
	$	105,101	$	3	$	(226)	$	104,878

A summary of the cash equivalents and investments as of December 31, 2020 is as follows:

Cash Equivalents:	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Money market funds	$	188,469	$	—	$	—	$	188,469
Certificates of deposit	25,028		—		—		25,028
Corporate bonds and commercial paper	997		—		(1)		996
U.S. government securities	19,999		—		—		19,999
	$	234,493	$	—	$	(1)	$	234,492

Investments:	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Corporate bonds and commercial paper	$	31,233	$	15	$	(9)	$	31,239
Certificates of deposit	10,007		—		—		10,007
U.S. government securities	90,120		—		(14)		90,106
	$	131,360	$	15	$	(23)	$	131,352

Investments Classified by Contractual Maturity Date

The following table summarizes the estimated fair value of the Company's investments, designated as available-for-sale and classified by the contractual maturity date of the investments as of the dates shown:

	December 31,
	2021		2020
Due within one year or less	$	63,935	$	131,352
Due after one year through five years	40,943		—
	$	104,878	$	131,352

Schedule of Fair Values and Gross Unrealized Losses for Available-for-sale Securities

The following table shows the fair values and the gross unrealized losses of these available-for-sale investments aggregated by investment category as of December 31, 2021:

	Adjusted Cost		Gross Unrealized Loss		Fair Value
U.S. government securities	$	48,658	$	(160)	$	48,498
Corporate bonds and commercial paper	41,500		(66)		41,434
	$	90,158	$	(226)	$	89,932

The following table shows the fair values and the gross unrealized losses of these available-for-sale investments aggregated by investment category as of December 31, 2020:

	Adjusted Cost		Gross Unrealized Loss		Fair Value
U.S. government securities	$	90,120	$	(14)	$	90,106
Corporate bonds and commercial paper	21,445		(9)		21,436
	$	111,565	$	(23)	$	111,542