Nature of Operations and Summary of Significant Accounting Policies - Narrative (Details) $ / shares in Units, € in Millions							3 Months Ended				6 Months Ended						12 Months Ended
	Sep. 02, 2022 shares	Sep. 01, 2022 shares	Aug. 29, 2022 USD ($) day $ / shares	Feb. 09, 2022 USD ($)	Feb. 09, 2022 EUR (€)	Oct. 25, 2021 USD ($) $ / shares	Sep. 30, 2022 USD ($)	Jun. 30, 2022 USD ($)	Sep. 30, 2021 business	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2022 USD ($) business	Jun. 30, 2022 USD ($) pillar	Jun. 30, 2022 USD ($) segment	Jun. 30, 2022 USD ($) businessUnit	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($) subsidiary	Mar. 07, 2022	Sep. 15, 2021	Mar. 03, 2021
Acquisitions and Divestitures
Number of operating segments | segment														1
Number of business units												2			7
Number of businesses acquired | business									4			1
Number of pillars for electric vehicles | pillar													3
Escrow desposit				$ 60,300,000	€ 52.5
Warranty liability								$ 600,000			$ 600,000	$ 600,000	$ 600,000	$ 600,000	$ 600,000
Cash and cash equivalents								85,508,000			85,508,000	85,508,000	85,508,000	85,508,000	85,508,000		$ 269,863,000
Number of subsidiaries requiring capital liquidity requirements | subsidiary																	2
Capital liquidity requirements from subsidiaries																	$ 2,200,000
Accounts payable and accrued expenses																	15,600,000
Other current liabilities								12,792,000			12,792,000	12,792,000	12,792,000	12,792,000	12,792,000		7,137,000
Current contingent consideration								722,000			722,000	722,000	722,000	722,000	722,000		648,000
Current portion of operating lease liabilities								3,926,000			3,926,000	3,926,000	3,926,000	3,926,000	3,926,000		3,086,000
Payments of short-term and long-term debt																	58,100,000
Net loss								(39,273,000)		$ (6,847,000)	(68,364,000)					$ (13,450,000)	(256,700,000)
Accumulated deficit								(672,037,000)			(672,037,000)	$ (672,037,000)	(672,037,000)	(672,037,000)	(672,037,000)		(605,758,000)
Number of additional businesses acquired | business												2
Principal								$ 33,598,000			$ 33,598,000	$ 33,598,000	$ 33,598,000	$ 33,598,000	$ 33,598,000		57,811,000
Interest rate in event of default								18.00%			18.00%	18.00%	18.00%	18.00%	18.00%
Negative cash flow from operating activities											$ 82,369,000					$ 10,370,000
Subsequent Event
Acquisitions and Divestitures
Cash and cash equivalents							$ 85,500,000
Subsequent Event | Standby Equity Purchase Agreement
Acquisitions and Divestitures
Number of shares issued (in shares) | shares	60,000,000	60,000,000
Transaction period	36 months	36 months
Purchase price equal to percentage of market price	95.00%	95.00%
Shares issued as a percentage of outstanding stock	19.90%	5.00%
Subsequent Event | Maximum | Standby Equity Purchase Agreement
Acquisitions and Divestitures
Number of shares issued (in shares) | shares	5,000,000
YA II PN, Ltd | Convertible Debenture | Subsequent Event
Acquisitions and Divestitures
Conversion price (in dollars per share) | $ / shares			$ 1.50
Convertible notes payable			$ 16,700,000
Threshold percentage			85.00%
Threshold consecutive trading days | day			7
Conversion price of common stock | $ / shares			$ 0.20
YA II PN, Ltd | Convertible Debenture | Convertible Debt
Acquisitions and Divestitures
Principal						$ 75,000,000
Total purchase price in asset acquisition						$ 75,000,000
Interest rate						4.00%
Interest rate in event of default						18.00%
Conversion price (in dollars per share) | $ / shares						$ 1.88
Redemption of unpaid principal per month						$ 8,300,000
Principal and accrued and unpaid interest																	17,500,000
Convertible notes payable																	57,500,000
Other Commitment, Aggregate Committed Investment
Acquisitions and Divestitures
Investments																	25,000,000
Investment Funding
Acquisitions and Divestitures
Investments to be called at any time																	20,400,000
Consolidated Entities
Acquisitions and Divestitures
Cash and cash equivalents																	400,000
PRC
Acquisitions and Divestitures
Cash and cash equivalents																	11,800,000
PRC | Subsequent Event
Acquisitions and Divestitures
Cash and cash equivalents							12,200,000
PRC | Consolidated Entities | Subsequent Event
Acquisitions and Divestitures
Cash and cash equivalents							$ 2,200,000
Energica
Acquisitions and Divestitures
Equity method investment, ownership percentage																			20.00%
Escrow desposit				$ 60,300,000	€ 52.5
Percentage threshold																		90.00%
Energica | Forecast | Subsequent Event
Acquisitions and Divestitures
Equity method investment, ownership percentage							70.00%
Energica | Energica Founders | Forecast | Subsequent Event
Acquisitions and Divestitures
Equity method investment, ownership percentage							29.00%
Energica Motor Company, Inc.
Acquisitions and Divestitures
Equity method investment, ownership percentage																				20.00%
Percentage threshold																		90.00%
Energica Motor Company, Inc. | Forecast | Subsequent Event
Acquisitions and Divestitures
Equity method investment, ownership percentage							70.00%
Energica Motor Company, Inc. | Energica Founders | Forecast | Subsequent Event
Acquisitions and Divestitures
Equity method investment, ownership percentage							29.00%
VIA Motors International, Inc.
Acquisitions and Divestitures
Percentage of ownership interest acquired								100.00%			100.00%	100.00%	100.00%	100.00%	100.00%
Purchase price											$ 630,000,000
Cash paid at closing, including working capital estimates											450,000,000						$ 62,900,000
Fair value of contingent consideration											$ 180,000,000
VIA Motors International, Inc. | Forecast
Acquisitions and Divestitures
Percentage of ownership interest acquired							100.00%
Purchase price							$ 630,000,000
Cash paid at closing, including working capital estimates							450,000,000
Fair value of contingent consideration							180,000,000
Bridge loan to related party							11,700,000
Transaction fees							45,000,000
Operational and capital funding							$ 260,000,000