Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2021

Fair Value Disclosures [Abstract]

Fair Value, Assets Measured on Recurring Basis

The following table presents information about the Company’s assets that are measured at fair value on a recurring basis at June 30, 2021, including the fair value hierarchy of the valuation inputs the Company utilized to determine such fair value.

Description	Level	June 30, 2021
Assets:
Marketable securities held in Trust Account	1	$	416,350,445
Liabilities:
Derivative liability – Class K Founder Shares	3	$	16,550,000

The following table presents information about the Company’s financial assets that are measured at fair value on a recurring basis by level within the fair value hierarchy (in thousands):

	Fair Value Measurement as of December 31, 2020
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents:
Money market funds	$	28,371	$	—	$	—	$	28,371
Marketable securities:
Commercial paper	—		27,473		—		27,473
Corporate securities	—		6,938		—		6,938
U.S. Treasury securities	—		16,158		—		16,158
Asset-backed securities	—		2,772		—		2,772
Total marketable securities	—		53,341		—		53,341
Total cash equivalents and marketable securities	$	28,371	$	53,341	$	—	$	81,712

	Fair Value Measurement as of December 31, 2019
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents:
Money market funds	$	4,090	$	—	$	—	$	4,090
Marketable securities:
Certificates of deposit	—		4,586		—		4,586
Commercial paper	—		18,128		—		18,128
Corporate securities	—		11,178		—		11,178
U.S. Treasury securities	—		51,345		—		51,345
Asset-backed securities	—		10,208		—		10,208
Total marketable securities	—		95,445		—		95,445
Total cash equivalents and marketable securities	$	4,090	$	95,445	$	—	$	99,535

The following table presents information about the Company’s financial assets that are measured at fair value on a recurring basis by level within the fair value hierarchy (in thousands):

	Fair Value Measurement as of September 30, 2021
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents:
Money market funds	$	18,014	$	—	$	—	$	18,014
Marketable securities:
Commercial paper	—		26,573		—		26,573
Corporate securities	—		5,493		—		5,493
U.S. Treasury securities	—		—		—		—
Asset-backed securities	—		8,173		—		8,173
Total marketable securities	—		40,239		—		40,239
Total cash equivalents and marketable securities	$	18,014	$	40,239	$	—	$	58,253

	Fair Value Measurement as of December 31, 2020
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents:
Money market funds	$	28,371	$	—	$	—	$	28,371
Marketable securities:
Commercial paper	—		27,473		—		27,473
Corporate securities	—		6,938		—		6,938
U.S. Treasury securities	—		16,158		—		16,158
Asset-backed securities	—		2,772		—		2,772
Total marketable securities	—		53,341		—		53,341
Total cash equivalents and marketable securities	$	28,371	$	53,341	$	—	$	81,712