Cash Equivalents and Short-Term Investments

9 Months Ended

Sep. 30, 2021

Cash And Cash Equivalents [Abstract]

Cash Equivalents and Short-Term Investments

4. Cash Equivalents and Short-Term Investments

The following is a summary of the Company’s cash equivalents and short-term investments:

	September 30, 2021
	Amortized Cost Basis		Unrealized Gains		Unrealized Losses			Fair Value
	(in thousands)
U.S. Treasury securities	$	65,242	$	2	$	(9	)	$	65,235
Money market funds		67,705		—		—			67,705
Commercial paper		21,385		—		—		$	21,385
Corporate bonds		5,139		—		—			5,139
Total	$	159,471	$	2	$	(9	)	$	159,464
Reported as:
Cash equivalents								$	67,705
Short-term investments									91,759
Total								$	159,464

	December 31, 2020
	Amortized Cost Basis		Unrealized Gains		Unrealized Losses			Fair Value
	(in thousands)
U.S. Treasury securities	$	126,354	$	11	$	(2	)	$	126,363
Money market funds		35,053		—		—			35,053
Commercial paper		31,968		—		—			31,968
Total	$	193,375	$	11	$	(2	)	$	193,384
Reported as:
Cash equivalents								$	41,453
Short-term investments									151,931
Total								$	193,384

The Company recognized no material gains or losses on its cash equivalents and short-term investments in the periods presented.

The remaining contractual maturities for available-for-sale securities were as follows:

	September 30,
	2021
	Fair Value
One year or less	$	134,384
Greater than one year and less than two years		25,080
Total	$	159,464