Convertible Preferred Stock - Schedule of Convertible Preferred Stock Outstanding (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	1 Months Ended	12 Months Ended
	Jan. 31, 2021	Dec. 31, 2021	Dec. 31, 2020
Convertible Preferred Stock [Line Items]
Shares authorized (in shares)		361,744	349,522
Shares outstanding (in shares)		349,124	337,235
Aggregate Liquidation Preference		$ 870,654	$ 335,654
Carrying Value of Preferred		$ 879,113	$ 344,827
A
Convertible Preferred Stock [Line Items]
Shares authorized (in shares)		28,000	28,000
Shares outstanding (in shares)		16,358	16,358
Per share price at issuance (in dollars per share)		$ 0.02	$ 0.02
Per share conversion price (in dollars per share)		$ 0.02	$ 0.02
Aggregate Liquidation Preference		$ 327	$ 327
Carrying Value of Preferred		$ 313	$ 313
B
Convertible Preferred Stock [Line Items]
Shares authorized (in shares)		45,532	45,532
Shares outstanding (in shares)		45,532	45,532
Per share price at issuance (in dollars per share)		$ 0.03	$ 0.03
Per share conversion price (in dollars per share)		$ 0.03	$ 0.03
Aggregate Liquidation Preference		$ 1,070	$ 1,070
Carrying Value of Preferred		$ 1,054	$ 1,054
C
Convertible Preferred Stock [Line Items]
Shares authorized (in shares)		95,290	95,290
Shares outstanding (in shares)		95,290	95,290
Per share price at issuance (in dollars per share)		$ 0.03	$ 0.03
Per share conversion price (in dollars per share)		$ 0.03	$ 0.03
Aggregate Liquidation Preference		$ 2,935	$ 2,935
Carrying Value of Preferred		$ 4,150	$ 4,150
D
Convertible Preferred Stock [Line Items]
Shares authorized (in shares)		54,860	54,860
Shares outstanding (in shares)		54,215	54,215
Per share price at issuance (in dollars per share)		$ 0.04	$ 0.04
Per share conversion price (in dollars per share)		$ 0.04	$ 0.04
Aggregate Liquidation Preference		$ 2,150	$ 2,150
Carrying Value of Preferred		$ 2,097	$ 2,097
D-1
Convertible Preferred Stock [Line Items]
Shares authorized (in shares)		44,706	44,706
Shares outstanding (in shares)		44,706	44,706
Per share price at issuance (in dollars per share)		$ 0.09	$ 0.09
Per share conversion price (in dollars per share)		$ 0.09	$ 0.09
Aggregate Liquidation Preference		$ 4,172	$ 4,172
Carrying Value of Preferred		$ 12,998	$ 12,998
E
Convertible Preferred Stock [Line Items]
Shares authorized (in shares)		24,340	24,340
Shares outstanding (in shares)		24,340	24,340
Per share price at issuance (in dollars per share)		$ 1.03	$ 1.03
Per share conversion price (in dollars per share)		$ 1.03	$ 1.03
Aggregate Liquidation Preference		$ 25,000	$ 25,000
Carrying Value of Preferred		$ 24,906	$ 24,906
F
Convertible Preferred Stock [Line Items]
Shares authorized (in shares)		33,149	33,149
Shares outstanding (in shares)		33,149	33,149
Per share price at issuance (in dollars per share)		$ 4.53	$ 4.53
Per share conversion price (in dollars per share)		$ 4.53	$ 4.53
Aggregate Liquidation Preference		$ 150,000	$ 150,000
Carrying Value of Preferred		$ 149,640	$ 149,640
G
Convertible Preferred Stock [Line Items]
Shares authorized (in shares)		23,645	23,645
Shares outstanding (in shares)		23,645	23,645
Per share price at issuance (in dollars per share)		$ 6.34	$ 6.34
Per share conversion price (in dollars per share)		$ 6.34	$ 6.34
Aggregate Liquidation Preference		$ 150,000	$ 150,000
Carrying Value of Preferred		$ 149,669	$ 149,669
H
Convertible Preferred Stock [Line Items]
Shares authorized (in shares)		12,222
Shares outstanding (in shares)		11,889
Per share price at issuance (in dollars per share)	$ 45.00	$ 45.00
Per share conversion price (in dollars per share)		$ 45.00
Aggregate Liquidation Preference		$ 535,000
Carrying Value of Preferred		$ 534,286