Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2022

Fair Value Disclosures [Abstract]

Schedule Of Fair Value Measurements, By Major Security Type

The following tables summarize, by major security type, our cash equivalents and short-term investments that are measured at fair value on a recurring basis and are categorized using the fair value hierarchy, in thousands:

	March 31, 2022
	Total		Level 1		Level 2
Cash equivalents:
Money market funds	$	29,245	$	29,245	$	—
Short-term investments:
Corporate debt securities		188,699	—			188,699
U.S. Treasury securities		167,939		167,939		—
Commercial paper		58,427	—			58,427
Non-U.S. government and supranational debt securities		22,375		—		22,375
U.S. Agency bonds		8,803		—		8,803
Total short-term investments		446,243		167,939		278,304
Total	$	475,488	$	197,184	$	278,304

	December 31, 2021
	Total		Level 1		Level 2
Cash equivalents:
Money market funds	$	79,895	$	79,895	$	—
Short-term investments:
Corporate debt securities		207,172	—			207,172
U.S. Treasury securities		134,833		134,833		—
Commercial paper		53,439	—			53,439
Non-U.S. government and supranational debt securities		22,908		—		22,908
U.S. Agency bonds		8,936		—		8,936
Total short-term investments		427,288		134,833		292,455
Total	$	507,183	$	214,728	$	292,455