Warrant Transaction Agreements - Amazon.com, Inc. Transaction Agreement (Details) $ / shares in Units, $ in Thousands								12 Months Ended
	Dec. 31, 2022 USD ($) $ / shares shares	Aug. 24, 2022 USD ($) $ / shares D shares	Dec. 31, 2020 USD ($) $ / shares shares	Nov. 02, 2020 USD ($) $ / shares installment shares	Jan. 01, 2019 USD ($) installment shares	Jul. 20, 2017	Apr. 04, 2017 USD ($) shares	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2019 USD ($)	Aug. 31, 2022 shares	Apr. 30, 2017 shares
Class of Warrant or Right [Line Items]
Minimum percentage of warrants vested and exercisable automatically								60.00%
Par value, common stock | $ / shares	$ 0.01							$ 0.01	$ 0.01
Reduction in revenue | $										$ 399,700
Exercise price calculation						The exercise price of the third tranche of Walmart Warrant Shares will be an amount per share equal to 90% of the 30-day volume weighted average share price of the common stock as of the final vesting date of the second tranche of Walmart Warrant Shares, provided that, with limited exceptions, the exercise price for the third tranche will not be lower than $1.1893
Selling, general and administrative | $								$ 363,929	$ 179,852	79,348
Provision for Loss Contracts Related to Service | $								(8,645)	63,124	$ 33,125
Risk free interest rate
Class of Warrant or Right [Line Items]
Warrants and rights outstanding measurement input			58	58						58
Volatility
Class of Warrant or Right [Line Items]
Warrants and rights outstanding measurement input			7,500.00	7,500.00						7,500.00
Expected average term
Class of Warrant or Right [Line Items]
Expected average term				6 years 5 months 1 day						6 years 3 months 3 days
Exercise price
Class of Warrant or Right [Line Items]
Warrants and rights outstanding measurement input | $ / shares			13.81	13.81						13.81
Stock price
Class of Warrant or Right [Line Items]
Warrants and rights outstanding measurement input | $ / shares			33.91	15.47						33.91
Warrants issued with the Amazon, Inc transaction agreement
Class of Warrant or Right [Line Items]
Shares of common stock that can be purchased from warrants issued (in shares) | shares							55,286,696						55,286,696
Reduction in revenue | $			$ 399,700					$ 400	$ 500	$ 420,000
Number of warrants exercised (in shares) | shares								24,704,450	17,461,994
Warrant shares vested (in shares) | shares	55,286,696							55,286,696	55,286,696
Fair value of warrants per share | $ / shares				$ 10.57						$ 26.95
Warrant percentage weighted average share price								90.00%
Warrants issued with the Amazon, Inc transaction agreement | Amazon
Class of Warrant or Right [Line Items]
Number of warrants exercisable | shares									17,461,994
Number of warrants exercised (in shares) | shares								24,704,450
Tranche one of warrants issued with the Amazon.com, Inc transaction agreement
Class of Warrant or Right [Line Items]
Shares of common stock that can be purchased from warrants issued (in shares) | shares							5,819,652
Cash payments to be received under agreement | $							$ 600,000
Exercise price calculation										$1.1893
Selling, general and administrative | $							$ 6,700
Tranche two of warrants issued with the Amazon.com, Inc. Transaction Agreement
Class of Warrant or Right [Line Items]
Cash payments to be received under agreement | $					$ 50,000
Reduction in revenue | $									$ 497	$ 9,000	$ 4,100
Warrant shares vested (in shares) | shares					29,098,260
Number of installments | installment					4
Tranche two of warrants issued with the Amazon.com, Inc. Transaction Agreement | Maximum
Class of Warrant or Right [Line Items]
Cash payments to be received under agreement | $					$ 200,000
Tranche three of warrants issued with the Amazon.com, Inc. Transaction Agreement
Class of Warrant or Right [Line Items]
Cash payments to be received under agreement | $				$ 50,000
Reduction in revenue | $										$ 24,100
Warrant shares vested (in shares) | shares				20,368,784
Number of installments | installment				8
Exercise price of warrants (in dollars per share) | $ / shares			$ 13.81							$ 13.81
Fair value of warrants per share | $ / shares				$ 10.57
Tranche three of warrants issued with the Amazon.com, Inc. Transaction Agreement | Maximum
Class of Warrant or Right [Line Items]
Cash payments to be received under agreement | $				$ 400,000
Warrant Issued With Amazon
Class of Warrant or Right [Line Items]
Cash payments to be received under agreement | $		$ 2,100,000
Reduction in revenue | $										$ 399,700
Warrant shares vested (in shares) | shares			5,354,905	12,730,490						5,354,905
Warrant percentage weighted average share price		90.00%
Provision for Loss Contracts Related to Service | $										$ 12,800
Warrant Issued With Amazon | Vesting of First Warrants Shares
Class of Warrant or Right [Line Items]
Number of warrants exercisable | shares		9,000,000
Warrant shares vested (in shares) | shares		9,000,000
Exercise price of warrants (in dollars per share) | $ / shares		$ 22.9841
Fair value of warrants per share | $ / shares		$ 20.36
Warrant Issued With Amazon | Vesting of Remaining Warrants Shares
Class of Warrant or Right [Line Items]
Warrant shares vested (in shares) | shares		7,000,000
Warrant Issued With Amazon | Vest in multiple tranches
Class of Warrant or Right [Line Items]
Shares of common stock that can be purchased from warrants issued (in shares) | shares		15,000,000
Vesting period		7 years
Warrant shares vested (in shares) | shares		15,000,000
2022 Amazon transaction agreement
Class of Warrant or Right [Line Items]
Shares of common stock that can be purchased from warrants issued (in shares) | shares		16,000,000										16,000,000
Reduction in revenue | $								$ 5,200
Warrant shares vested (in shares) | shares	1,000,000							1,000,000
Class Of Warrant Or Right Exercisable on Vesting Threshold Trading Days | D		30
Warrant charge capitalized | $	$ 20,400							$ 20,400
2022 Amazon transaction agreement | Vest immediately upon issuance
Class of Warrant or Right [Line Items]
Warrant shares vested (in shares) | shares		1,000,000
2022 Amazon transaction agreement | Tranches 1-3 | Risk free interest rate
Class of Warrant or Right [Line Items]
Warrants and rights outstanding measurement input		0.0315
2022 Amazon transaction agreement | Tranches 1-3 | Volatility
Class of Warrant or Right [Line Items]
Warrants and rights outstanding measurement input		0.7500
2022 Amazon transaction agreement | Tranches 1-3 | Expected average term
Class of Warrant or Right [Line Items]
Expected average term		7 years
2022 Amazon transaction agreement | Tranches 1-3 | Exercise price
Class of Warrant or Right [Line Items]
Warrants and rights outstanding measurement input | $ / shares		22.98
2022 Amazon transaction agreement | Tranches 1-3 | Stock price
Class of Warrant or Right [Line Items]
Warrants and rights outstanding measurement input | $ / shares		20.36
2022 Amazon transaction agreement | Tranche 4 | Risk free interest rate
Class of Warrant or Right [Line Items]
Warrants and rights outstanding measurement input	0.0388							0.0388
2022 Amazon transaction agreement | Tranche 4 | Volatility
Class of Warrant or Right [Line Items]
Warrants and rights outstanding measurement input	0.7500							0.7500
2022 Amazon transaction agreement | Tranche 4 | Expected average term
Class of Warrant or Right [Line Items]
Expected average term	4 years
2022 Amazon transaction agreement | Tranche 4 | Exercise price
Class of Warrant or Right [Line Items]
Warrants and rights outstanding measurement input | $ / shares	11.13							11.13
2022 Amazon transaction agreement | Tranche 4 | Stock price
Class of Warrant or Right [Line Items]
Warrants and rights outstanding measurement input | $ / shares	12.37							12.37