Summary of Significant Accounting Policies - Liquidity and Going Concern Evaluation (Details) - USD ($) $ / shares in Units, $ in Thousands							3 Months Ended				6 Months Ended
	Aug. 07, 2022	May 05, 2022	Apr. 29, 2022	Feb. 14, 2022	May 05, 2021	Oct. 16, 2020	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021	Dec. 31, 2020
Significant Accounting Policies [Line Items]
Cash and cash equivalents							$ 54,028		$ 50,990		$ 54,028	$ 50,990	$ 82,160	$ 44,122
Long-term debt							27,200				27,200
Long-term debt							27,217				27,217		25,886
Less: current debt													3,500
Minimum liquidity balance											25,000
Proceeds from issuance of common stock, gross proceeds									21,144
Net losses							23,123	$ 38,449	$ 18,587	$ 15,721	61,572	34,308
Operating cash flows											(47,120)	$ (10,878)
Warrant exercise price (in dollars per share)					$ 0.01
Equity subject to warrant exercise (as a percent)					0.50%
Private Placement | Class A
Significant Accounting Policies [Line Items]
Share price			$ 12.00
April 2022 Private Placement | Class A
Significant Accounting Policies [Line Items]
Shares issued and sold			3,333,333
Proceeds from issuance of common stock, gross proceeds			$ 40,000
February 2022 Private Placement | Private Placement
Significant Accounting Policies [Line Items]
Proceeds from issuance of common stock, net of offering costs				$ 5,000
February 2022 Private Placement | Private Placement | Class A
Significant Accounting Policies [Line Items]
Shares issued and sold				357,143
Purchase agreement with RJB | Private Placement
Significant Accounting Policies [Line Items]
Proceeds from issuance of common stock, gross proceeds			20,000
Purchase agreement with Linda Findley | Private Placement | Class A
Significant Accounting Policies [Line Items]
Proceeds from issuance of common stock, gross proceeds			$ 500
Share price			$ 12.00
Gift Card Sponsorship Agreement with Aspiration Carbon Reduction
Significant Accounting Policies [Line Items]
Unredeemed gift cards sponsored		$ 20,000
Note Purchase and Guarantee Agreement
Significant Accounting Policies [Line Items]
Minimum asset coverage ratio		1.25%
Any date subsequent to June 30, 2022 | Note Purchase and Guarantee Agreement
Significant Accounting Policies [Line Items]
Minimum liquidity balance		$ 15,000
Performed Asset Valuation | Note Purchase and Guarantee Agreement
Significant Accounting Policies [Line Items]
Minimum liquidity balance		$ 25,000
Scenario, Plan | Purchase agreement with RJB | Private Placement | Class A
Significant Accounting Policies [Line Items]
Shares issued and sold			1,666,667
2020 Term Loan
Significant Accounting Policies [Line Items]
Long-term debt							27,217				27,217		29,386
Long-term debt							$ 27,217				$ 27,217		25,886
Less: current debt													$ 3,500
Face value of debt						$ 35,000
Margin added to variable rate (as a percent)						1.50%
Interest rate (as a percent)						8.00%
Warrant exercise price (in dollars per share)					$ 0.01
Equity subject to warrant exercise (as a percent)					0.50%
2021 Term Loan
Significant Accounting Policies [Line Items]
Face value of debt					$ 5,000
Margin added to variable rate (as a percent)					1.50%
Interest rate (as a percent)					9.00%
Subsequent Event | Purchase agreement with RJB | Private Placement
Significant Accounting Policies [Line Items]
Proceeds from issuance of common stock, gross proceeds	$ 50,000
Subsequent Event | Purchase agreement with RJB | Private Placement | Class A
Significant Accounting Policies [Line Items]
Shares issued and sold	10,000,000
Proceeds from issuance of common stock, gross proceeds	$ 50,000
Subsequent Event | Purchase Agreement with RJB Partners LLC, April 2022 | Private Placement | Class A
Significant Accounting Policies [Line Items]
Shares issued and sold	1,666,667
Share price	$ 12.00
Subsequent Event | Purchase Agreement with RJB Partners LLC, August 2022 | Private Placement | Class A
Significant Accounting Policies [Line Items]
Shares issued and sold	8,333,333
Proceeds from issuance of common stock, gross proceeds	$ 50,000
Share price	$ 5.00
Subsequent Event | Scenario, Plan | Purchase Agreement with RJB Partners LLC, April 2022 | Private Placement | Class A
Significant Accounting Policies [Line Items]
Shares issued and sold	1,666,667
Subsequent Event | Maximum. | Purchase agreement with RJB | Private Placement
Significant Accounting Policies [Line Items]
Proceeds from stock issuance, usage for strategic purpose	$ 25,000