Arrival (ARVLF) 20-F/A 11 Aug 21 2020 FY Annual report (foreign) (amended) Financial data

Cover Page

Cover Page	12 Months Ended
	Dec. 31, 2020shares
Document Information [Line Items]
Document Type	20-F/A
Amendment Flag	true
Document Registration Statement	false
Document Transition Report	false
Document Annual Report	true
Document Shell Company Report	false
Document Period End Date	Dec. 31, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Entity Registrant Name	ARRIVAL
Entity Central Index Key	0001835059
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Voluntary Filers	No
Entity Interactive Data Current	Yes
ICFR Auditor Attestation Flag	false
Document Accounting Standard	International Financial Reporting Standards
Amendment Description	Arrival (the “Company”) is filing this Amendment No. 2 (this “Amendment”) to the Company’s Annual Report on Form 20-F for the fiscal year ended December 31, 2020 (the “Original 20-F”), which was filed with the Securities and Exchange Commission (“SEC”) on April 30, 2021 (the “Original Filing Date”), and amended by Amendment No. 1 to the Original 20-F filed with the SEC on May 27, 2021, solely for the purpose of correcting inadvertent typographical errors with respect to: a reference to “Note 17” (which has been corrected to read “Note 16”) regarding adjustments for tax income appearing in the Company’s Condensed Consolidated Statement of Cash Flows for the periods ended December 31, 2020, 2019 and 2018; to Grants Received appearing in the Company’s Condensed Consolidated Statement of Cash Flows; and to a reference to “3 material lease agreements” (which has been corrected to read: “4 material lease agreements”) appearing in the footnote of Note 7 to the Consolidated Financial Statements. This Amendment speaks as of the Original Filing Date, and other than as explicitly set forth herein, does not reflect any events that may have occurred subsequent to the Original Filing Date, and does not modify or update in any way any disclosures made in the Form 20-F except as set forth in this explanatory note.
Entity File Number	001-40286
Entity Incorporation, State or Country Code	N4
Entity Address, Address Line One	1, rue Peternelchen
Entity Address, Address Line Two	L-2370 Howald
Entity Address, City or Town	Howald
Entity Address, Country	LU
Entity Common Stock, Shares Outstanding	606,157,267
Business Contact [Member]
Document Information [Line Items]
Contact Personnel Name	Daniel Chin
Entity Address, Address Line One	1, rue Peternelchen
Entity Address, Address Line Two	L-2370 Howald
Entity Address, City or Town	Howald
Entity Address, Country	LU
City Area Code	+352
Local Phone Number	621 266 815
Ordinary shares [member]
Document Information [Line Items]
Trading Symbol	ARVL
Title of 12(b) Security	Ordinary Shares
Security Exchange Name	NASDAQ
Warrants [member]
Document Information [Line Items]
Trading Symbol	ARVLW
Title of 12(b) Security	Warrants
Security Exchange Name	NASDAQ
Warrants Outstanding	20,112,500

Consolidated Statement of Profi

Consolidated Statement of Profit or (Loss) - EUR (€) € in Thousands	2 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2019		Dec. 31, 2018
Continuing Operations
Administrative expenses		€ (75,133)	€ (31,392)		€ (16,769)
Legal Expenses		(5,362)	(633)		(311)
Research and development expenses		(17,947)	(11,149)		(6,219)
Impairment expense		(391)	(4,972)		(9,347)
Other income		2,362	2,583		1,167
Other expenses		(6,853)	(6,911)		(13)
Operating loss		(97,962)	(51,841)		(31,181)
Finance income		2,703	51		140
Finance expense		(5,758)	(3,235)		(99)
Net finance expense		(3,055)	(3,184)		41
Loss before tax		(101,017)	(55,025)		(31,140)
Tax income		17,802	6,929		951
Loss for the year		(83,215)	(48,096)	[1]	(30,189)	[1]
Attributable to:
Owners of the Company		€ (83,215)	€ (48,096)		€ (30,189)
Earnings per share
Basic earnings per share		€ (0.09)	€ (0.05)		€ (0.03)
Diluted earnings per share		€ (0.09)	€ (0.05)		€ (0.03)
Arrival Group [Member]
Continuing Operations
Administrative expenses	€ (102)
Legal Expenses	(3,285)
Operating loss	(3,387)
Loss before tax	(3,387)
Loss for the year	(3,387)
Attributable to:
Owners of the Company	€ (3,387)
Earnings per share
Basic earnings per share	€ (11.29)
Diluted earnings per share	€ (11.29)
[1]	Restated to reflect reclassification of cash flows described in note 2

Consolidated Statement of Other

Consolidated Statement of Other Comprehensive (Loss)/Income - EUR (€) € in Thousands	2 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2019		Dec. 31, 2018
Statements [Line Items]
Loss for the year		€ (83,215)	€ (48,096)	[1]	€ (30,189)	[1]
Items that may be reclassified subsequently to the consolidated statement profit or (loss)
Exchange differences on translating foreign operations		(7,757)	4,894		(554)
Total other comprehensive (loss)/income		(7,757)	4,894		(554)
Total comprehensive loss for the year		(90,972)	(43,202)		(30,743)
Attributable to:
Owners of the Company		€ (90,972)	€ (43,202)		€ (30,743)
Arrival Group [Member]
Statements [Line Items]
Loss for the year	€ (3,387)
Items that may be reclassified subsequently to the consolidated statement profit or (loss)
Total comprehensive loss for the year	€ (3,387)
[1]	Restated to reflect reclassification of cash flows described in note 2

Consolidated Statement of Finan

Consolidated Statement of Financial Position - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019
Non-Current Assets
Property, plant and equipment	€ 112,719	€ 34,947
Intangible assets and goodwill	171,726	84,250
Deferred tax asset	1,134	159
Trade and other receivables	10,786	8,209
Total Non-Current Assets	296,365	127,565
Current Assets
Inventory	11,820	5,716
Loans to executives	4,244
Trade and other receivables	51,424	8,509
Prepayments	18,956	4,733
Cash and cash equivalents	67,080	96,644	[1]
Total Current Assets	153,524	115,602
TOTAL ASSETS	449,889	243,167
Capital and reserves
Share capital	239,103	227,333
Share premium	288,539	139,752
Other reserves	51,425	7,035
Accumulated deficit	(258,756)	(174,875)
Total Equity	320,311	199,245
Non-Current Liabilities
Deferred tax liability	2,750
Loans and borrowings	87,907	19,943
Total Non-Current Liabilities	90,657	19,943
Current Liabilities
Current tax liabilities	501	124
Loans and borrowings	4,255	3,045
Trade and other payables	34,165	20,810
Total Current Liabilities	38,921	23,979
TOTAL EQUITY AND LIABILITIES	449,889	€ 243,167
Arrival Group [Member]
Current Assets
Cash and cash equivalents	28
Total Current Assets	28
TOTAL ASSETS	28
Capital and reserves
Share capital	30
Accumulated deficit	(3,387)
Total Equity	(3,357)
Current Liabilities
Trade and other payables	3,385
Total Current Liabilities	3,385
TOTAL EQUITY AND LIABILITIES	€ 28
[1]	Restated to reflect reclassification of cash flows described in note 2

Consolidated Statement of Chang

Consolidated Statement of Changes in Equity - EUR (€) € in Thousands	Total		Arrival Group [Member]	Share capital [member]	Share capital [member]Arrival Group [Member]	Share premium [member]	Accumulated deficit [member]	Accumulated deficit [member]Arrival Group [Member]	Other reserves [member]	[1]
Balance at Dec. 31, 2017	€ 36,146			€ 16		€ 71,607	€ (38,172)		€ 2,695
Loss for the year	(30,189)	[2]					(30,189)
Other comprehensive income(loss)	(554)								(554)
Transactions with shareholders	5,403			16		71,607	(68,361)		2,141
Capital increase	44,553					44,553
Balance (Changes in accounting policy to reflect IFRS 16 [member]) at Dec. 31, 2018	(475)						(475)
Balance (After stated [member]) at Dec. 31, 2018	49,481			16		116,160	(68,836)		2,141
Balance at Dec. 31, 2018	49,956			16		116,160	(68,361)		2,141
Loss for the year	(48,096)	[2]					(48,096)
Other comprehensive income(loss)	4,894								4,894
Transactions with shareholders	6,279			16		116,160	(116,932)		7,035
Capital increase	250,909			7,333		243,576
Conversion of share premium to share capital				219,984		(219,984)
Business combination under common control	(57,943)						(57,943)
Balance at Dec. 31, 2019	199,245			227,333		139,752	(174,875)		7,035
Loss for the year	(83,215)						(83,215)
Other comprehensive income(loss)	(7,757)								(7,757)
Transactions with shareholders	108,273			227,333		139,752	(258,090)		(722)
Capital increase	160,557			11,770		148,787
Restrictive Share Plan to employees	27,400								27,400
Equity-settled share-based payments	24,747								24,747
Business combination under common control	(666)						(666)
Balance at Dec. 31, 2020	320,311		€ (3,357)	239,103	€ 30	288,539	(258,756)	€ (3,387)	51,425
Balance at Oct. 26, 2020
Loss for the year			(3,387)					(3,387)
Transactions with shareholders			(3,387)					(3,387)
Capital increase			30		30
Balance at Dec. 31, 2020	€ 320,311		€ (3,357)	€ 239,103	€ 30	€ 288,539	€ (258,756)	€ (3,387)	€ 51,425
[1]	Other reserves comprise of translation reserves and equity reserves which are not distributable (see note 13).
[2]	Restated to reflect reclassification of cash flows described in note 2

Consolidated Statement of Cash

Consolidated Statement of Cash Flows - EUR (€) € in Thousands		2 Months Ended	12 Months Ended
		Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2019		Dec. 31, 2018
Cash flows used in operating activities
Loss for the year			€ (83,215)	€ (48,096)	[1]	€ (30,189)	[1]
Adjustments for:
Depreciation/Amortization			9,652	4,770	[1]	2,120	[1]
Impairment losses and write-offs			397	4,972	[1]	9,347	[1]
Net unrealised foreign exchange differences			40	105	[1]	(141)	[1]
Net finance interest			2,180	2,524	[1]	(94)	[1]
Employee share scheme			9,326
Profit on disposal of fixed assets	[1]			(542)
Profit from the modification of lease			(1,036)	(64)	[1]
Deferred taxes			1,621	(65)	[1]	(1,108)	[1]
Tax income			(19,423)	(6,864)	[1]	157	[1]
Cash flows used in operations before working capital changes			(80,458)	(43,260)	[1]	(19,908)	[1]
(Increase)/decrease in trade and other receivables			(4,545)	(4,803)	[1]	3,128	[1]
Increase/(decrease) in trade and other payables			9,736	9,317	[1]	(1,652)	[1]
Increase) of inventory			(6,191)	(3,413)	[1]	(1,067)	[1]
Cash flows used in operations			(81,458)	(42,159)	[1]	(19,499)	[1]
Income tax and other taxes received/(paid)			4,108	6,973	[1]	(118)	[1]
Interest received			24	51	[1]	94	[1]
Net cash used in operating activities			(77,326)	(35,135)	[1]	(19,523)	[1]
Cash flows from investing activities
Acquisition of intangible assets and goodwill			(80,684)	(38,484)	[1]	(19,334)	[1]
Acquisition of property, plant and equipment			(9,844)	(6,054)	[1]	(3,182)	[1]
Grants received			1,067	844	[1]	0	[1]
Prepayments for tangible and intangible assets			(17,350)	(4,644)	[1]	(889)	[1]
Cash received on acquisition of entities, net of consideration paid			117	486	[1]
Proceeds from the sale of fixed assets			6
Loans granted	[1]			(490)		(2,509)
Net cash used in investing activities			(106,688)	(48,342)	[1]	(25,914)	[1]
Cash flows from financing activities
Issuance of Preferred A shares			160,500	100,000	[1]
Contribution of Kinetik to the share premium of the Company without the issuance of any shares	[1]			81,911		41,052
Proceeds from borrowings			12,396
Repayment of borrowings			(12,396)
Repayment of interest			(51)
Repayment of lease liabilities			(6,695)	(3,287)	[1]
Net cash from financing activities			153,754	178,624	[1]	41,052	[1]
Net increase/(decrease) in cash and cash equivalents			(30,260)	95,147	[1]	(4,385)	[1]
Cash and cash equivalents at January 1	[1]		96,644	1,053		5,476
Effects of movements in exchange rates on cash held			696	444	[1]	(38)	[1]
Cash and cash equivalents at December 31		€ 67,080	67,080	€ 96,644	[1]	€ 1,053	[1]
Arrival Group [Member]
Cash flows used in operating activities
Loss for the year		(3,387)
Adjustments for:
Increase/(decrease) in trade and other payables		3,385
Net cash used in operating activities		(2)
Cash flows from financing activities
Capital increase		30
Net cash from financing activities		30
Net increase/(decrease) in cash and cash equivalents		28
Cash and cash equivalents at December 31		€ 28	€ 28
[1]	Restated to reflect reclassification of cash flows described in note 2

Incorporation and Principal Act

Incorporation and Principal Activities	2 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2020
Statements [Line Items]
Incorporation and Principal Activities		1. INCORPORATION AND PRINCIPAL ACTIVITIES General Arrival Luxembourg S.à r.l. (the “Company” or the “Group” if together with its subsidiaries, previously named Arrival S.à r.l.) was incorporated in Luxembourg on October 15, 2015 as a Société à responsabilité limitée. The Company has its registered address at 1, rue Peternelchen, L-2370 L-2370 The Company signed a Business Combination Agreement on November 18, 2020 in contemplation of a planned merger (the ‘Merger’) which completed on March 24, 2021 ahead of a listing on NASDAQ of the newly merged Arrival group on March 25, 2021. Arrival Group S.A. (now known as ‘Arrival’) was incorporated on October 27, 2020 to effect the merger transaction and as described in the subsequent events Note 25, the Shareholders of Arrival Luxembourg S.à r.l. contributed their shares in Arrival Luxembourg S.a.r.l in exchange for shares in Arrival, making Arrival the parent company of Arrival Luxembourg S.a r.l. and its subsidiaries. Principal activities The Group’s principal activity is the research & development (“R&D”) and design of electric commercial vehicles, electric vehicle components, robotic manufacturing processes for electric vehicles and associated software. The Group’s main operations are in the United Kingdom, United States, Germany and Russia.
Arrival Group [Member]
Statements [Line Items]
Incorporation and Principal Activities	1. INCORPORATION AND PRINCIPAL ACTIVITIES General Arrival (the “Company”, previously named Arrival Group S.A.) was incorporated in Luxembourg on October 27, 2020 as a Société Anonyme. The Company has its registered address at 1, rue Peternelchen, L-2370 The Company was incorporated for the purpose of the merger transaction with CIIG Merger Corporation (Note 11). Principal activities The principal activities of the Company is the direct and indirect acquisition and holding of participating interests, in any form whatsoever, in Luxembourg and/or in foreign undertakings, as well as the administration, development and management of such interests. The Company may grant pledges, guarantees, liens, mortgages and any other form of securities as well as any form of indemnities, to Luxembourg or foreign entities, in respect of its own obligations and debts. The Company may also provide assistance in any form (including but not limited to the granting of advances, loans, money deposits and credits as well as the provision of pledges, guarantees, liens, mortgages and any other form of securities, in any kind of form) to the Company’s subsidiaries. On a more occasional basis, the Company may provide the same kind of assistance to undertakings which are part of the same group of companies which the Company belongs to or to third parties, provided that doing so falls within the Company’s best interest and does not trigger any license requirements. The Company may also use its funds to invest in real estate, in intellectual property rights (copyright on software, patents, trademarks – including service marks and domain names – designs, patterns and models, etc.) or any other movable or immovable assets in any form or of any kind. In general, the Company may carry out any commercial, industrial or financial operation and engage in such other activities as the Company deems necessary, advisable, convenient, incidental to, or not inconsistent with, the accomplishment and development of the foregoing.

Basis of Preparation

Basis of Preparation	2 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2020
Statements [Line Items]
Basis of Preparation		2. BASIS OF PREPARATION The Group’s financial year is from January 1 to December 31, which is also the annual closing date of the individual entities’ financial statements which have been incorporated into the Group’s consolidated financial statements. Statement of compliance The consolidated financial statements of the Company have been prepared in accordance with International Financial Reporting Standards (IFRS) as issued by the International Accounting Standards Board (IASB). These consolidated financial statements were approved and authorised for issue by the Board of Directors (the “Board”) on April 30, 2021. Basis of measurement The consolidated financial statements have been prepared under historical cost basis. Going concern The consolidated financial statements have been prepared on a going concern basis. In determining the appropriate basis of preparation for the consolidated financial statements for the years ended December 31, 2020, 2019 and 2018 the Board is required to consider whether the Group will be able to operate within the level of available cash and funding for the foreseeable future, being a period of at least 12 months following the approval of the consolidated financial statements. The Company was incorporated in October 2015 and has a limited operating history and expects to incur significant expenses and continuing losses for the foreseeable future. The Group has not yet manufactured or sold any production vehicles to customers so has generated no revenue to date. As the Group attempts to transition from research and development activities to commercial production and sales, there is a degree of uncertainty in preparing the Group’s forecasts and the Group has limited insight into trends that may emerge and affect the Group’s business. The estimated costs and timelines that the Group has developed to reach full scale commercial production are subject to inherent risks and uncertainties involved in the transition from a start-up For example, the tooling required within the Group’s microfactories may be more expensive to produce than predicted, or have a shorter lifespan, resulting in additional replacement and maintenance costs, particularly relating to composite panel tooling. Similarly, the Group may experience higher raw material waste in the composite process than it expects, resulting in higher operating costs and hampering its ability to be profitable. The Board concluded that it is appropriate to adopt the going concern basis, having undertaken an assessment of the financial forecast, key uncertainties and sensitivities, including any potential impact of COVID-19. build-out Despite the high level of uncertainty as to how the COVID-19 COVID-19 in-house As described in subsequent events note 25, since the year end the Shareholders of the Group have contributed their shares in the Group to Arrival in exchange for shares in Arrival, making Arrival the parent company of the Group. Following the successful completion of the merger transaction with CIIG Merger Corporation, which occurred on March 25, 2021, Arrival became listed on NASDAQ and raised USD 611,518,000 net of all transaction expenses. The Group relies on the support of its new parent company to fund its ongoing operations. Having performed a sensitivity analysis over the costs of setting up the microfactories and costs of raw materials, the Board has concluded that in the forecasts in a severe but plausible downside scenario there is still sufficient cash available from its parent company to fund its operations in the forecast period. Those forecasts are dependent on the parent company providing financial support during that period. The parent company has indicated its intention to make available such funds as are needed by the Group for the period covered by the forecasts. As with any Group placing reliance on other group entities for financial support, the Directors acknowledge that there can be no certainty that this support will continue although, at the date of approval of these financial statements, they have no reason to believe that it will not do so. The Board is confident that the Group has sufficient funds to continue to be able to realise its assets and discharge its liabilities as they fall due for a period of at least 12 months from the date of approval of the financial statements and therefore the financial statements have been prepared on a going concern basis. Functional and presentation currency The consolidated financial statements are presented in euro (EUR) which is the functional currency of the Company, rounded to the nearest thousand, unless otherwise stated. Restatement of cash flow statement The Group identified errors in the statement of cash flows for the years ended December 31, 2019 and 2018 relating to prepayments of intangible assets of EUR 4,644 and EUR 889, and grants received for the development of intangible assets of EUR 844 and nil, which were previously included as cash flows from operating activities and have been reclassified as cash flows from investing activities. This reclassification had no impact on the Company’s operating results or financial positions for the respective years. Adoption of new and revised International Financial Reporting Standards The following Standards, Amendments to Standards and Interpretations have been issued and adopted by the Group as of the effective date. Effective date New standards or amendments January 1, 2020 Amendments to References to Conceptual Framework in IFRS Standards IFRS 3 – Definition of a Business IAS 1 and IAS 8 – Definition of Material IFRS 9, IAS 39 and IFRS 7 – Interest rate benchmark Reform June 1, 2020 Amendments to IFRS 16 Leases COVID-19 January 1, 2019 IFRIC 23 – Uncertainty over Tax Treatments IFRS 16 – Leases IFRS 9 – Prepayments Features with Negative Compensation Annual improvements to IFRSs 2015-2017 Cycle (Amendments to IFRS3, IFRS 11, IAS 12 and IAS 23) The Group had to change its accounting policies as a result of adopting IFRS 16 (see note 3 – Leases). The Group elected to adopt these new rules applying the modified retrospective approach effect. The cumulative effect of adopting IFRS 16 is recognised as an adjustment to the opening balance of retained earnings as of January 1, 2019, with no restatement of comparative information. All other new standards and the amendments listed above did not have any impact on the amounts recognised in prior periods and have not materially affected the current consolidated financial statements. Analysis on the New Standards adopted by the Group: Implementation of Standard that has an impact on the consolidated financial statements • IFRS 16 “Leases” IFRS 16 replaces existing leases guidance including IAS 17 Leases, IFRIC 4 Determining whether an Arrangement contains a Lease, SIC-15 SIC-27 on- right-of-use On transition to IFRS 16, the Group recognised additional right-of-use right-of-use right-of-use On transition to IFRS, the Group elected to apply the practical expedient to grandfather the assessment of which transactions are leases. The Group applied IFRS 16 only to contracts that were previously identified as leases. Contracts that were not identified as leases under IAS 17 and IFRC 4 were not reassessed for whether there is a lease under IFRS 16. The impact on transition is summarised below: In thousands of euro January 1, The impact at transition Right of use assets – property plant and equipment 5,720 Lease liability (6,195 ) Retained earnings 475 The Group initially applied IFRS 16 at January 1, 2019, using the modified retrospective approach. Under this approach, comparative information is not restated and the cumulative effect of initially applying IFRS 16 is recognised in retained earnings at the date of initial application.​​​​​​​ In thousands of euro Lease liabilities at transition Operating lease commitments at December 31, 2018 as disclosed under IAS 17 14,847 Discounted using the incremental borrowing rate at January 1, 2019* 6,195 Lease liabilities recognised at January 1, 2019 6,195 * When measuring lease liabilities for leases that were classified as operating leases, the Group discounted the lease payments using its incremental borrowing rate at January 1, 2019. The weighted average of the incremental borrowing rate applied to the lease liabilities was 18.3%. The following Standards, Amendments to Standards and Interpretations have been issued but are not effective for the year ended December 31, 2020: January 1, 2021 IFRS 9, IAS 39, IFRS 7, IFRS 4 and IFRS 16 – Interest Rate Benchmark Reform – Phase 2 January 1, 2022 IFRS 3 – Amendments to References to Conceptual Framework January 1, 2022 IAS 16 – Proceeds before intended use January 1, 2022 IAS 37 – Cost of fulfilling a contract January 1, 2023 IAS 1 – Classification of Liabilities as Current or Non-Current January 1, 2023 IFRS 17 – Insurance Contracts Available for optional adoption/effective date deferred indefinitely IFRS 10 and IAS 28 – Sale or Contribution of Assets between Investor and its Associate or Joint Venture The above-mentioned new standards, amendments and interpretations are not expected to have a significant impact on the consolidated financial statements.
Arrival Group [Member]
Statements [Line Items]
Basis of Preparation	2. BASIS OF PREPARATION The Company’s financial year starts on January 1 and ends on December 31 of each year. The current financial statements present the financial data of the Company as from October 27, 2020 (date of incorporation) to December 31, 2020. Statement of compliance The financial statements of the Company have been prepared in accordance with International Financial Reporting Standards (IFRS) as issued by the International Accounting Standards Board (IASB). These financial statements were approved and authorised for issue by the Board of Directors (the “Board”) on April 30, 2021. Basis of measurement The financial statements have been prepared under the historical cost basis. Going concern The financial statements have been prepared on a going concern basis. In determining the appropriate basis of preparation for the financial statements for the period ended December 31, 2020 the Board is required to consider whether the Company will be able to operate within the level of available cash and funding for the foreseeable future, being a period of at least 12 months following the approval of the financial statements. The Company was incorporated on October 27, 2020 and has a limited operating history. The Company was incorporated on October 27, 2020 and has a limited operating history. The Company was incorporated for the purpose of merger transaction with CIIG Merger Corporation and as described in the subsequent events Note 10, the Shareholders of Arrival Luxembourg S.à r.l. have contributed their shares of Arrival Luxembourg S.à r.l in exchange for the shares in the Company, making the Company the parent company of Arrival Luxembourg S.à r.l and its subsidiaries. Following the successful completion of the merger transaction with CIIG Merger Corporation, which occurred on March 25, 2021, the Company became listed on NASDAQ and raised USD 611,734,000 net of all transaction expenses. The cash as of March 31, 2021 of the Company was EUR 498,638,038. The Company continues to operate as a holding company of Arrival Luxembourg S.à r.l. and its subsidiaries. The cash raised by the Company is forecast to be used by the Company and its subsidiaries to cover ongoing operations and therefore the Board have considered cashflow forecasts at the group level, having undertaken an assessment of the key uncertainties and sensitivities, including any potential impact of COVID-19. Based on the above assessment, the Board is confident, that the Company has sufficient funds to continue to be able to realise its assets and discharge its liabilities as they fall due for a period of at least 12 months from the date of approval of the financial statements and therefore the financial statements have been prepared on a going concern basis. Functional and presentation currency The financial statements are presented in euro (EUR), rounded to the nearest thousand, unless otherwise stated. Adoption of new and revised International Financial Reporting Standards The following Standards, Amendments to Standards and Interpretations have been issued but are not effective for the year ended December 31, 2020: January 1, 2021 IFRS 9, IAS 39, IFRS 7, IFRS 4 and IFRS 16 – Interest Rate Benchmark Reform – Phase 2 January 1, 2022 IFRS 3 – Amendments to References to Conceptual Framework January 1, 2022 IAS 16 – Proceeds before intended use January 1, 2022 IAS 37 – Cost of fulfilling a contract January 1, 2023 IAS 1 – Classification of Liabilities as Current or Non-Current January 1, 2023 IFRS 17 – Insurance Contracts Available for optional adoption/effective date deferred IFRS 10 and IAS 28 – Sale or Contribution of Assets between Investor and its Associate or Joint Venture The above-mentioned new standards, amendments and interpretations do not have a significant impact on the financial statements. Cash and cash equivalents Cash and cash equivalents, for the purpose of preparing the statement of cash flows, comprise cash in hand and at banks and short-term deposits expiring not more than three months after the acquisition date. Share capital Ordinary shares are classified as equity. Incremental costs directly attributable to the issue of ordinary shares and share options which vest immediately are recognised as a deduction from equity, net of any tax effects. Trade and other payables Trade and other payables are initially recognised at their fair value and subsequently measured at amortised cost. Trade and other payables are classified as current liabilities unless the Company has the right, unconditionally, to postpone the repayment of the liabilities for at least twelve months after the reporting date. Taxation Tax on the profit or loss for the period comprises current and deferred tax. Tax is recognised in the income statement except to the extent that it relates to items recognised directly in equity, in which case it is recognised in equity. Current tax is the expected tax payable or receivable on the taxable income or loss for the year, using tax rates enacted or substantively enacted at the balance sheet date, and any adjustment to tax payable in respect of previous years. Deferred tax is provided on temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for taxation purposes. The following temporary differences are not provided for: the initial recognition of goodwill; the initial recognition of assets or liabilities that affect neither accounting nor taxable profit other than in a business combination, and differences relating to investments in subsidiaries to the extent that they will probably not reverse in the foreseeable future. The amount of deferred tax provided is based on the expected manner of realisation or settlement of the carrying amount of assets and liabilities, using tax rates enacted or substantively enacted at the balance sheet date. A deferred tax asset is recognised only to the extent that it is probable that future taxable profits will be available against which the temporary difference can be utilised. Events after the reporting date Assets and liabilities are adjusted for events which occurred in the period between the reporting date and the date the financial statements are approved by the Board when such events provide evidence of conditions that existed at the end of the reporting period.

Significant Accounting Policies

Significant Accounting Policies	12 Months Ended
	Dec. 31, 2020
Text Block [abstract]
Significant Accounting Policies	3. SIGNIFICANT ACCOUNTING POLICIES Basis of consolidation a) Subsidiary companies Subsidiaries are all the entities controlled by the Group. Control exists where the Group is exposed, or has rights, to variable returns from its involvement with the investee and has the ability to affect those returns through its power over the investee. The existence and effect of potential voting rights that are currently exercisable or convertible are considered when assessing whether the Group controls another entity. The Group also assesses the existence of control when it does not hold more than 50% of the voting rights but is able to govern the financial and operating policies by virtue of de-facto De-facto Subsidiaries are fully consolidated from the date on which control is transferred to the Group. They are de-consolidated b) Business combinations The Group accounts for business combinations using the acquisition method when control is transferred to the Group. The consideration transferred for the acquisition of a subsidiary is the fair value of the assets transferred, the liabilities incurred and the equity interests issued by the Group. Acquisition-related costs are expensed in the consolidated statement of If the business combination is achieved in stages, the fair value at the acquisition date of the interest previously held by the Group is valued again at fair value at the acquisition date through consolidated statement of Any contingent consideration to be transferred by the Group is recognised at fair value at the acquisition date. Subsequent changes to the fair value of the contingent consideration that is considered as an asset or liability is recognised in accordance with IAS 39 either in the consolidated statement of Goodwill is measured as the excess of the sum of the consideration transferred and the fair value of the amount of any non-controlling Business combinations involving entities under common control are recognised as follows: all assets and liabilities are recorded at book value and the difference between the cost of investment and net equity of the entity acquired is recorded as an equity transaction in the statement of changes in equity. A list of the subsidiary companies of the Group are: The Group Country of Participation in share Principal activity and status 2020 2019 % % Arrival Ltd UK 100 % 100 % R&D Arrival Nominees Ltd UK — — Dissolved – February 5, 2019 Arrival Software Ltd UK — 80 % Dissolved – January 14, 2020 Sim-ply UK — — Dissolved – May 7, 2019 Arrival One Ltd UK — — Dissolved – March 26, 2019 Arrival Robotics Ltd (previously named TRA UK 100 % 100 % R&D Arrival R Ltd (previously named Roborace Ltd) UK 100 % 100 % R&D Arrival M Ltd (previously named UK — 100 % Dissolved – September 22, 2020 Arrival Jet Ltd UK 100 % 100 % R&D Arrival Elements Ltd UK — 100 % Dissolved – March 3, 2020 Roborace Ltd UK 100 % — R&D Arrival Management Systems Ltd UK — 100 % Dissolved – January 14, 2020 The Group Country of Participation in share Principal activity and status 2020 2019 % % Arrival Automotive UK Ltd UK 100 % 100 % Manufacturing Arrival Solutions UK Ltd UK 100 % — Services Arrival Mobility Ltd UK 100 % 100 % Services Arrival Vault UK Ltd UK 100 % — Services Arrival Elements B.V. NL 100 % 100 % Distributor Arrival USA Inc (previously named Roborace Inc) US 100 % 100 % R&D Arrival Automotive USA Inc US 100 % 100 % Manufacturing ARSNL Merger Sub Inc US 100 % — Holding Roborace Inc US 100 % — R&D Arrival Solutions USA Inc US 100 % — Services Arrival Automotive PTE Ltd SGP 100 % 100 % Acquisition and holding of participating interests Arrival RUS LLC (previously named Arrival Russia 100 % 100 % R&D Arrival Robotics LLC (previously named TRA Robotics LLC) Russia 100 % 100 % R&D Arrival Germany GmbH GER 100 % 100 % R&D Arrival Automotive Germany GmbH GER 100 % 100 % Manufacturing Arrival Solutions Germany GmbH (previously named Cybernation Germany GmbH) GER 100 % — Services Arrival Israel Ltd IL 100 % 100 % R&D Arrival LT UAB LT 100 % — R&D Arrival (previously named Arrival Group S.A.) Lux 100 % — Holding c) Transactions eliminated at consolidation Intergroup balances and any recognised gains and losses or income and expenses arising from intergroup transactions are eliminated during the preparation of the consolidated financial statements. Unrealised gains arising from transactions with associate companies are eliminated to the extent of the Group’s interest in the net assets of the associate company. Unrealised losses are eliminated in the same way, but only to the extent that there is no evidence for impairment. Foreign currencies 1. Foreign currency transactions Transactions in foreign currencies are translated to the functional currency of the Company at the average rate of the year. Monetary assets and liabilities denominated in foreign currencies are translated to the functional currency of the Company at the exchange rate at the reporting date. Non-monetary Non-monetary currency are translated at the exchange rate at the date of the transaction. Foreign currency differences are generally recognised in consolidated statement of 2. Foreign operations The assets and liabilities of foreign operations, including goodwill and fair value adjustments arising on acquisition, are translated into Euro at the exchange rates at the reporting date. The income and expenses of foreign operations are translated into Euro at the average rate of the year. Foreign currency differences are recognised in Other Comprehensive Income (“OCI”) and accumulated in the translation reserve, except to the extent that the translation difference is allocated to Non-Controlling When a foreign operation is disposed of in its entirety or partially such control, significant influence or joint control is lost, the cumulative amount in the translation reserve related to that foreign operation is reclassified to consolidated statement of Foreign exchange gains and losses are presented netted in the consolidated financial statements The rates applied to convert the foreign currencies into EUR are presented in the following table: Consolidated Balance Sheet Consolidated Statement of profit or (loss) and 2020 2019 2020 2019 2018 British Pounds GBP 1.11234705 1.17536436 1.12440301 1.14171543 1.12873080 Russian Rubles RUB 0.01093289 0.01429464 0.01187300 0.01384692 0.01348233 US Dollar USD 0.81492950 0.89015489 0.87183958 0.89329581 0.84794867 Singapore Dollar SGD 0.61659884 0.66176957 0.63344594 0.6556159 0.64139567 Israeli Shekel ILS 0.25350470 0.25743339 0.25488151 0.25138208 — If the settlement of a monetary item receivable from or payable to a foreign operation is neither planned nor likely to occur in the foreseeable future, the foreign currency differences arising from such items form part of the net investment in the foreign operation. Accordingly, such differences are recognised in OCI and accumulated in the translation reserve. Property, plant and equipment Each class of property, plant and equipment is carried at cost less, where applicable, any accumulated depreciation and impairment. The depreciation rates for property, plant and equipment are as follows: Depreciation method Depreciation Rate Plant and machinery Straight line 20 % Furniture & Fittings Straight line 20 % Computer equipment Straight line 33 % Motor vehicles Straight line 20 % At the end of each annual reporting period, the depreciation method, useful life and residual value of each asset is reviewed. Any revisions are accounted for prospectively as a change in estimate. When an asset is disposed, the gain or loss is calculated by comparing proceeds received with its carrying amount and is taken to consolidated statement of Assets that have been acquired but are not available for use are not depreciated. Leasehold improvements under construction are also not depreciated. Leasehold improvements that are available for use are depreciated over the shorter of their useful economic life and the duration of the lease. The right of use of assets for leases is depreciated over the shorter of their useful economic life and the duration of the lease. Depreciation amount is presented in administration expenses. Depreciation of assets used in the development of products is capitalised (see note 19C). Intangible fixed assets and goodwill Intangible fixed assets are valued at purchase price including the expenses incidental thereto or at production cost, less accumulated amortisation and accumulated impairment losses. Where factors, such as technological advancement or changes in market price, indicate that the residual value or useful life have changed, the residual value, useful life or amortisation rate are amended prospectively to reflect the new circumstances. The assets are reviewed for impairment if the above factors indicate that the carrying amount may be impaired. Expenditure on research activities is recognised in the consolidated statement of Assets under construction involve design for, construction or testing of the production of a new or substantially improved products or processes. The expenditure recognised includes the cost of materials, direct labour, an appropriate proportion of overheads and borrowing costs. Other development expenditure is recognised in the consolidated statement of Intangible assets are amortised as follows: Amortisation method Amortisation Rate Trademarks and Patents Straight line 10 years Software Straight line 33.33% or over the The amortisation of intangible assets is presented in administration expenses. Goodwill is not amortised. In a business combination, goodwill represents the excess of the consideration paid over the fair value of the net identifiable assets, liabilities and contingent liabilities of the entity acquired. Goodwill is stated at cost, less accumulated impairment losses. Goodwill impairment testing is performed annually or more frequently if events or changes in circumstances indicate possible impairment. The carrying amount of goodwill is compared with its recoverable amount which is the higher of the value in use and the fair value less cost to sell. Trade and other receivables Trade and other receivables without significant financing components are initially measured at the transaction price. Other receivables which have significant financing components, are initially measured at fair value plus transaction costs that are directly attributable to the acquisition or issue. The amount of provision for trade and other receivables represents the difference between the carrying amount and the recoverable amount, which is equal to the present value of the estimated cash flow. Amounts receivable in more than one year are presented in non-current Financial Assets The Group classifies its financial assets as assets measured at amortised cost. Financial assets measured at amortised cost are held under the business model that is aimed at collecting contractual cash-flows. The cash-flows of the financial assets relate solely to payments of the principal and interest on the principal amount. Financial assets recognised at amortised cost are initially measured at fair value less costs that are directly attributable to the acquisition or issue of the financial asset. Subsequently they are adjusted to the payments received and the cumulative amortisation of any difference between the original amount and the amount repayable at maturity, using the effective interest method over the term of the financial asset. Interest income from these financial assets is included in finance income. When there is a difference between the fair value and the amount of the transaction at initial recognition, this difference is recognised in finance income or expenses in the consolidated statement of profit or (loss) and other comprehensive (loss)/income.​​​​​​​ Measurement of fair value The Group has an established control framework with respect to the measurement of fair values. This includes a valuation team that has overall responsibility for overseeing all significant fair value measurements, including Level 3 fair values, and reports directly to the chief financial officer. The valuation team regularly reviews significant unobservable inputs and valuation adjustments. If third party information, such as broker quotes or pricing services, is used to measure fair values, then the valuation team assesses the evidence obtained from the third parties to support the conclusion that these valuations meet the requirements of the Standards, including the level in the fair value hierarchy in which the valuations should be classified. Significant valuation issues are reported to the those charged with Governance. When measuring the fair value of an asset or a liability, the Group uses observable market data as far as possible. Fair values are categorised into different levels in a fair value hierarchy based on the inputs used in the valuation techniques as follows: — Level 1: quoted prices (unadjusted) in active markets for identical assets or liabilities. — Level 2: inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly (i.e. as prices) or indirectly (i.e. derived from prices). — Level 3: inputs for the asset or liability that are not based on observable market data (unobservable inputs). If the inputs used to measure the fair value of an asset or a liability fall into different levels of the fair value hierarchy, then the fair value measurement is categorised in its entirety in the same level of the fair value hierarchy as the lowest level input that is significant to the entire measurement. Inventories Inventories are measured at the lower of cost and net realisable value. Cost of inventory is determined using the first-in-first-out Cash and cash equivalents and Cash flow statement Cash and cash equivalents, for the purpose of preparing the statement of cash flows, comprise cash in hand and at banks and short-term deposits expiring not more than three months after the acquisition date. Long term deposits are presented on the Balance Sheet as trade and other receivables, as these deposits are not liquid investments. For the purposes of preparing the statement of cash flows, transactions occurred within such long-term deposits appear within cash flows used in operations.​​​​​​​ Impairment of assets The carrying amount of the Group’s assets is reviewed at each reporting date to determine whether there is any indication of impairment in the value of the assets. If such indication exists, the asset’s recoverable amount is estimated. The recoverable amount of an asset is determined as the higher of its net selling price in an arm’s length transaction and the present value of the estimated future cash flows from the continued use of the asset and its sale at the end of its useful life. When the recoverable amount of an asset is lower than its carrying amount, this decrease is recognised as an expense in the statement of comprehensive income of the year. In the case that in future accounting periods the amount of impairment that corresponds to the remaining assets decreases due to events that occurred after the recognition of the impairment, the corresponding amount is reversed through consolidated statement of Expected Credit Loss (“ECL”) is a probability-weighted estimate of credit losses. Credit losses are measured as the present value of all cash shortfalls (for example: the difference between the cash flows due to the entity in accordance with the contract and the cash flows that the Group expects to receive). ECLs are discounted at the effective interest rate of the financial asset. Loss allowances for financial assets measured at amortised cost are deducted from the gross carrying amount of the assets. Based on management assessment the impact of ECL is not material to the consolidated financial statements. Share capital Ordinary shares and Preference A shares are classified as equity. Incremental costs directly attributable to the issue of ordinary shares and share options which vest immediately are recognised as a deduction from equity, net of any tax effects. Share premium is the difference between the fair value of the consideration receivable for the issue of shares and the nominal value of the shares. Treasury Shares are ordinary outstanding shares that are held by the issuing company. When such ordinary shares are subsequently reissued any consideration received is included in equity attributable to the owners of the Company. Trade and other payables Trade and other payables are initially recognised at their fair value and subsequently measured at amortised cost. Trade and other payables are classified as current liabilities unless the Group has the right, unconditionally, to postpone the repayment of the liabilities for at least twelve months after the reporting date. Interest income and expense Interest income and expense are recognised within `finance income’ and `finance expense’ in consolidated statement of The effective interest method is a method of calculating the amortised cost of a financial asset or financial liability and of allocating the interest income or interest expense over the relevant period. The effective interest rate is the rate that exactly discounts estimated future cash payments or receipts throughout the expected life of the financial instrument, or a shorter period where appropriate, to the net carrying amount of the financial asset or financial liability. When calculating the effective interest rate, the Group estimates cash flows considering all contractual terms of the financial instrument (for example, prepayment options) but does not consider future credit losses. The calculation includes all paid or received between parties to the contract that are an integral part of the effective interest rate, transaction costs and all other premiums or discounts. Government grants The Group recognises an unconditional government grant relating to development in the consolidated statement of Leases 1. Definition of a lease Previously, the Group determined at contract inception whether an arrangement was or contained a lease under IFRIC 4 Determining whether an Arrangement contains a Lease. The Group now assesses whether a contract is or contains a lease based on the definition of a lease under IFRS 16. A contract is, or contains, a lease if the contract conveys the right to control the use of an identified asset for a period of time in exchange for consideration. To assess whether a contract conveys the right to control the use of an identified asset, the Group uses the definition of a lease in IFRS 16. 2. Leased assets At commencement or on modification of a contract that contains a lease component, the Group allocates the consideration in the contract to each lease component on the basis of its relative prices. However, for the leases of property the Group has elected not to separate non-lease non-lease The Group recognises a right-of-use right-of-use The right-of-use straight-line right-of-use In that case the right-of-use right-of-use The lease liability is initially measured at the present value of the lease payments that are not paid at the commencement date, discounted at the discount rate implicit in the lease if that rate can be readily determined, otherwise the Group’s incremental borrowing rate is used. The Group in 2018 and 2019 determined its incremental borrowing rate by obtaining interest rates from various external financing sources and made certain adjustments to reflect the terms of the lease and type of the asset leased. In 2020, in the absence of external borrowing and Group’s credit risk, the Group has calculated its incremental borrowing rate based on property yields adjusted for economic environment and duration of the leases. Lease payments included in the measurement of the lease liability comprise the following: • fixed payments, including in-substance • amounts expected to be payable under a residual value guarantee. The lease liability is measured at amortised cost using the effective interest method. It is remeasured when there is a change in future lease payments arising from a change in an index or rate, if there is a change in the Group’s estimate of the amount expected to be payable under a residual value guarantee, if the Group changes its assessment of whether it will exercise a purchase, extension or termination option or if there is a revised in-substance When the lease liability is remeasured in this way, a corresponding adjustment is made to the carrying amount of the right-of-use right-of-use 3. Short-term leases and leases of low-value The Group has elected not to recognise right-of-use low-value short-term straight-line Policy before January 1, 2019: Determining whether an arrangement contains a lease At inception of an arrangement, the Group determines whether the arrangement is or contains a lease. At inception or on reassessment of an arrangement that contains a lease, the Group separates payments and other consideration required by the arrangement into those for the lease and those for other elements on the basis of their relative fair values. If the Group concludes for a finance lease that it is impracticable to separate the payments reliably, then an asset and a liability are recognised at an amount equal to the fair value of the underlying asset; subsequently, the liability is reduced as payments are made and an imputed finance cost on the liability is recognised using the Group’s incremental borrowing rate. Leased assets Leases of property, plant and equipment that transfer to the Group substantially all of the risks and rewards of ownership are classified as finance leases. The leased assets are measured initially at an amount equal to the lower of their fair value and the present value of the minimum lease payments. Subsequent to initial recognition, the assets are accounted for in accordance with the accounting policy applicable to that asset. Assets held under other leases are classified as operating leases and are not recognised in the Group’s statement of financial position. Lease payments Payments made under operating leases are recognised in consolidated statement of straight-line Share-based payments Share-based compensation benefits are provided to employees via the Arrival Share Option Plan (“SOP”) and Arrival Restricted Share Plan (“RSP”). Share-based payment arrangements in which the Company receives goods or services as consideration for its own equity instruments are accounted for as equity-settled share-based payment transactions. The grant date fair value of share-based payments awards granted to employees is recognised as an employee expense or it is capitalised as part of the development cost, with a corresponding increase in equity, over the vesting period. For awards that are vested on grant date, the services received are recognized in full, with a corresponding increase in equity. The fair value of the awards granted is measured using an option valuation model, taking into account the terms and conditions upon which the awards were granted. The amount recognised as an expense is adjusted to reflect the revised estimated number of awards for which the related service and non-market non-market For share-based payment awards with non-vesting true-up Taxation Tax on the profit or loss for the year comprises current and deferred tax. Tax is recognised in the income statement except to the extent that it relates to items recognised directly in equity, in which case it is recognised in equity. The income tax expense or income for the period is the tax payable on the current period’s taxable income based on the applicable income tax rate for each jurisdiction adjusted by changes in deferred taxes and liabilities attributable to temporary differences and to unused tax losses. Current tax is calculated on the basis of the tax laws enacted or substantively enacted at the end of the reporting period in the countries where the Group’s subsidiaries operate and generate taxable income. Deferred tax is provided on temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for taxation purposes. The following temporary differences are not provided for: the initial recognition of goodwill; the initial recognition of assets or liabilities that affect neither accounting nor taxable profit other than in a business combination, and differences relating to investments in subsidiaries to the extent that they will probably not reverse in the foreseeable future. The amount of deferred tax provided is based on the expected manner of realisation or settlement of the carrying amount of assets and liabilities, using tax rates enacted or substantively enacted at the balance sheet date. A deferred tax asset is recognised only if it is probable that future taxable amounts will be available to utilise those temporary differences and losses. Deferred tax assets and liabilities are offset when there is a legally enforceable right to offset current tax assets and liabilities and when the deferred tax balances relate to the same taxing authority. R&D Tax Credits UK registered entities in the Group are eligible to apply for a credit from the UK tax authorities calculated based on the cost of specific qualifying research and development activities in the period (“R&D Tax Credits”). The calculation of these tax credits, and the approval of them by the tax authorities, is sufficiently uncertain, as it requires the approval from the UK authorities that all conditions are met. Research and Development Expenditure Credit (“RDEC”) and Small and Medium Enterprise credits (“SME credit”) are recognised as tax receivable and they are recognised when it is reasonably certain that the amount will be received from Her Majesty’s Revenue and Customs (“HMRC”). Events after the reporting date Assets and liabilities are adjusted for events which occurred in the period between the reporting date and the date the financial statements are approved by the Board when such events provide evidence of conditions that existed at the end of the reporting period. Use of estimates and judgements The preparation of consolidated financial statements in accordance with IFRS as issued by the International Accounting Standards Board (IASB) requires from Management the exercise of judgment, to make estimates and assumptions that influence the application of accounting principles and the related amounts of assets and liabilities, income and expenses. The estimates and underlying assumptions are based on historical experience and various other factors that are deemed to be reasonable based on knowledge available at that time. Actual results may deviate from such estimates. A higher degree of judgement has been applied to: Impairment testing The assumptions used in the impairment test represent management’s best estimate for the period under consideration. The estimate of the recoverable amount, for purposes of performing the annual impairment test for the research and development cash generating units (“CGU”), was determined using a value-in-use Management has identified that changes in the 2 key assumptions could cause the carrying amount to exceed the recoverable amount. The following table shows the amount by which these 2 assumptions would need to change individually for the estimated recoverable amount to be equal to the carrying amount:​​​​​​​ Change required for Weighted average cost of capital 78 % Product growth rate 0.319 % Capitalised assets in the course of construction Management uses judgement to determine when a project has reached the development phase, to ascertain the ability to use or sell the asset, which is a criteria for capitalization for development expenditure per IAS 38. Management estimates the cost to completion and probable future cash flows that will flow in order to determine if the project is economically viable. If the conditions are met and it is believed that there is a market for the product under development, then all directly attributable costs relating to the project are capitalised. Share based payments In determining the value of the employee share schemes (see Note 21), management used the following assumption: a) participants that will resign before 1 year of service or before the milestone dates are achieved: 4,3 13,75 value-in-use Reasonably possible changes at the reporting date to one of the relevant assumptions, holding other assumptions constant, would have affected the share based payments by the amounts shown below: December 31, 2020 Increase Decrease Resign before one year (1% movement) 0 0 Resign before the milestone dates (1% movement) (62 ) 62 Milestones be achieved (6 months earlier or 6 months later) (872 ) 1,508 Fair Value of Loans Participants in the RSP have received interest bearing and interest free loans, all provided on a full recourse basis. For the determination of fair value of loans granted to employees, employees of Kinetik and ex-employees zero-coupon Reasonably possible changes at the reporting date to one of the relevant assumptions, holding other assumptions constant, would have affected the fair value of the loans by the amounts shown below: December 31, 2020 Increase Decrease Repayment of loans (6 months movement) 134 (16 ) Discount rate (2.5% movement) 43 (44 ) Annual increase in savings (0.2% decrease, 1% increase) (268 ) 54 Initial savings (2.5% movement) (636 ) 646 Volatility (10% movement) 1,239 (1,263 ) Changes in significant accounting policies To date the Group has applied the following accounting policy: Government grants which become receivable and relate to a capital expenditure are credited to a deferred income account and are released to the consolidated statement of This accounting policy has been amended during 2020 and the Group now recognises the government grants which become receivable and relate to capital expenditure are credited in Intangible assets. Management decided to implement this change in accounting policy as several of the assets under development may have indefinite useful economic life and such as the deferred income recognised on the balance sheet would not be released. It is considered by changing the accounting policy that this will give a better view of the financial position of the company. The change of this accounting policy did not have a material impact to the numbers of the prior periods.

Financial Risk And Capital Mana

Financial Risk And Capital Management	12 Months Ended
	Dec. 31, 2020
Text Block [abstract]
Financial Risk And Capital Management	4. FINANCIAL RISK AND CAPITAL MANAGEMENT A. Financial risk factors The Group is exposed to the following financial risks: • Liquidity risk • Credit risk • Market risk The Board has overall responsibility for the establishment and oversight of the Group’s risk management framework. The Group risk management policies are established to identify and analyse the risks faced by the Group, to set appropriate risk limits and controls and monitor risks and adherence to limits. Risk management policies and systems are reviewed regularly to reflect changes in market conditions and the Company’s activities. (i) Liquidity risk Liquidity risk is the risk that the Group will encounter difficulty in meeting in financial obligations as they fall due. During 2020, the Company has increased further its share capital by accepting new preferred A investors. The total amount raised during the year was EUR 160,500,000 (2019: EUR 250,909,000) (see note 13). In addition, the Group has raised on March 25, 2021 an additional amount of USD 611,734,000 following the merger with CIIG. (ii) Credit risk Credit risk arises from the possibility that counterparties to transactions may default on their obligations, causing financial losses for the Group. As the Group is not currently trading, the risk is minimal as it applies only to the other debtors of the Group. Management is closely monitoring all amounts due and takes actions where it is A. Financial risk factors (continued) (ii) Credit risk (continued) necessary to do so to mitigate this risk. In addition, management is monitoring the expected credit risk from the non-repayment (iii) Market risk Market risk is primarily related to foreign currency exchanges rates. Foreign currency risk arises from the exposure to exchange rate fluctuations. The Group is exposed to British Pounds (“GBP”), Russian Rubles (“RUB”), Israeli Shekel (“ILS”) and United States Dollars (“USD”). Currently there are no currency forwards, options or swaps to hedge this exposure as the Group is in the development phase and the Management is committed to funding all projects. The management is monitoring the risk by reviewing the monthly cash-flow forecasts and financing the various entities of the group with the necessary operating cash-flow on a monthly basis. The following table shows the fluctuation of the main currencies the Group is using against Euro: 2020 2019 2018 EUR/USD (2.40 %) 5.34 % (3.72 %) EUR/GBP (1.52 %) 1.15 % (1.17 %) EUR/RUB (14.26 %) 2.70 % (12.08 %) EUR/ILS 1.39 % 6.92 % — The net impact from the fluctuation of operational foreign exchange rates amounted to EUR (578) (2019: EUR (501), 2018: EUR 18).

Non-Financial Risk Management

Non-Financial Risk Management	12 Months Ended
	Dec. 31, 2020
Text Block [abstract]
Non-Financial Risk Management	5. NON-FINANCIAL B. Capital Management The Board’s policy is to secure the Group as a going concern and finance its long-term growth. In addition to the analysis provided in liquidity risk above, Management also received a strategic order of 10,000 vehicles from UPS which need to be delivered over the next 5 years. The Group is exposed to the following non-financial 1. Operational risk 2. Compliance risk 3. Legal risk 4. Risk due to the COVID-19 5. Risk due to Brexit Operational risk Operational risk is the risk derived from the weakness of information technology systems and controls as well as the risk from human error and natural disaster. This risk is limited through continuous evaluation and upgrade of the current systems and controls. Compliance risk Compliance risk is the risk of financial loss, including fines and other penalties, which arises from non-compliance Legal risk Legal risk is the risk of financial loss, the discontinuation of the operations of companies of the Group and the Group or any other negative situation arising from the possibility of non-execution Risk due to COVID-19 The COVID-19 Furthermore, an analysis was made to assess the impact of COVID-19 • Capitalised development costs – These assets are in relation to projects that will deliver value via electric vehicle production and services for these vehicles starting in 2022. We do not consider that there is any impairment as 1) this extends into the period during which the pandemic is likely to have ended, 2) we anticipate that demand for Arrival’s electric vehicles to be largely unimpacted by the pandemic. • The Group’s right-of-use COVID-19 COVID-19, Brexit On January 31, 2020, the United Kingdom left the European Union with transition arrangements in place until December 31, 2020. This arrangement allowed continued trading on EU terms through 2020. As from January1, 2021, the UK and the EU have entered into a Trade and Cooperation Agreement, which allows companies to continue their trading between the UK and the EU without major disruptions. It has been agreed that neither side will charge taxes or duties on goods crossing boarders. In addition, a set of rules has been agreed to ensure that one country or group of countries does not have an unfair advantage over another. As a business with global manufacturing locations, Arrival does not have a significant reliance on UK/EU trade and it has not been directly impacted by the new rules.

Operating Segment

Operating Segment	2 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2020
Statements [Line Items]
Operating Segment		6. OPERATING SEGMENTS The Group operates as a single segment as currently all active entities operate in research and development with the focus on electric vehicles. The Group has setup entities that will operate in the manufacturing and distribution, however at this stage, the Board reviews all financial information as a single segment.
Arrival Group [Member]
Statements [Line Items]
Operating Segment	3. OPERATING SEGMENTS The Company has no segments.

Property, Plant And Equipment

Property, Plant And Equipment	12 Months Ended
	Dec. 31, 2020
Text Block [abstract]
Property, Plant And Equipment	7. PROPERTY, PLANT AND EQUIPMENT In thousands of euro Land and Plant and Furniture and Motor Assets under TOTAL Cost At January 1, 2020 23,945 16,268 3,536 116 1,533 45,398 Additions 50,491 10,541 2,460 83 3,731 67,306 Disposals — (157 ) (231 ) — — (388 ) Modification of lease*** 24,506 — — — — 24,506 Additions through business combinations under common control — 139 131 392 — 662 Transfers (1,812 ) (1,812 ) Additions through business combinations 165 735 4 10 — 914 Foreign exchange differences (3,579 ) (1,573 ) (209 ) 1 (122 ) (5,482 ) At December 31, 2020 93,716 25,953 5,691 602 5,142 131,104 Depreciation/impairment At January 1, 2020 (3,549 ) (5,984 ) (864 ) (54 ) — (10,451 ) Additions through business combinations under common control — (59 ) (25 ) (95 ) — (179 ) Depreciation (6,157 ) (4,984 ) (788 ) (72 ) — (12,001 ) Modification of lease*** 1,114 1,114 Transfers 1,812 1,812 Impairment — (25 ) — — — (25 ) Disposal — 157 225 — — 382 Foreign exchange differences 333 574 54 2 — 963 In thousands of euro Land and Plant and Furniture and Motor Assets under TOTAL At December 31, 2020 (6,447 ) (10,321 ) (1,398 ) (219 ) — (18,385 ) Net book Value At January 1, 2020 20,396 10,284 2,672 62 1,533 34,947 At December 31, 2020 87,269 15,632 4,293 383 5,142 112,719 Cost At January 1, 2019 — 8,270 1,029 78 1,475 10,852 Recognition of right-of-use 6,027 — — — — 6,027 Additions 14,732 4,335 2,135 19 — 21,221 Disposals — (3,199 ) (33 ) (188 ) (17 ) (3,437 ) Modification of lease 22 — — — — 22 Additions through business combinations under common control 2,584 5,989 276 189 — 9,038 Foreign exchange differences 580 873 129 18 75 1,675 At December 31, 2019 23,945 16,268 3,536 116 1,533 45,398 Depreciation/impairment At January 1, 2019 — (2,513 ) (339 ) (28 ) — (2,880 ) Recognition of right-of-use (981 ) — — — — (981 ) Additions through business combinations under common control (251 ) (1,547 ) (53 ) (169 ) — (2,020 ) Depreciation (2,267 ) (2,606 ) (465 ) (39 ) — (5,377 ) Modification of lease 42 — — — — 42 Disposal — 981 26 188 — 1,195 Foreign exchange differences (92 ) (299 ) (33 ) (6 ) — (430 ) At December 31, 2019 (3,549 ) (5,984 ) (864 ) (54 ) — (10,451 ) Net book Value At January 1, 2019 — 5,757 690 50 1,475 7,972 At December 31, 2019 20,396 10,284 2,672 62 1,533 34,947 In thousands of euro Plant and Furniture Motor Assets under TOTAL Cost At January 1, 2018 5,249 774 41 1,841 7,905 Additions 1,769 264 37 1,112 3,182 Reclassification 1,466 — — (1,466 ) — Foreign exchange differences (214 ) (9 ) — (12 ) (235 ) At December 31, 2018 8,270 1,029 78 1,475 10,852 Depreciation/impairment At January 1, 2018 (660 ) (110 ) (15 ) — (785 ) Depreciation (1,927 ) (232 ) (13 ) — (2,172 ) Reclassification — — — — — Impairment — — — — — Foreign exchange differences 74 3 — — 77 At December 31, 2018 (2,513 ) (339 ) (28 ) — (2,880 ) * Land and Building comprise of leased buildings and leasehold improvements. The cost of leased buildings amounts to EUR 93,575 (2019: EUR 23,945) and the accumulated depreciation is EUR 6,559 (2019: 3,549). ** Assets under construction classified under property, plant and equipment are assets bought and/or lease hold improvements that are not ready for use. *** During 2020, the Group has entered a number of new leases and amended several existing agreements. The Group has entered into 4 material lease agreements in the USA which have a right of use of asset of EUR 23,770. In addition, the Group has leased office and factory buildings in the UK of total right of use value of EUR 24,683. Due to the growth the Group, we have renegotiated several of the existing lease agreements, which resulted in obtaining better terms and at the same time extent the period of the lease terms. The total modification of the lease amounted to EUR 24,506.

Intangible Assets And Goodwill

Intangible Assets And Goodwill	12 Months Ended
	Dec. 31, 2020
Text Block [abstract]
Intangible Assets And Goodwill	8. INTANGIBLE ASSETS AND GOODWILL In thousands of euro Goodwill Assets under Patent, trademarks Software TOTAL Cost At January 1, 2020 6 124,938 104 2,394 127,442 Additions 26 91,996 — 2,304 94,326 Additions through business combinations under common control — — 361 — 361 Additions through business combinations — — — 4 4 Transfer (4 ) — — — (4 ) Disposal — — — (10 ) (10 ) Foreign exchange differences — (8,147 ) 2 (150 ) (8,295 ) At December 31, 2020 28 208,787 467 4,542 213,824 Amortisation/impairment At January 1, 2020 (6 ) (41,949 ) (17 ) (1,220 ) (43,192 ) Amortisation — — (27 ) (893 ) (920 ) Additions through business combinations under common control — — (39 ) — (39 ) Transfer 4 — — — 4 Disposal — — — 5 5 Impairment — (366 ) — — (366 ) Foreign exchange differences — 2,337 — 73 2,410 At December 31, 2020 (2 ) (39,978 ) (83 ) (2,035 ) ( ) Net book Value At January 1, 2020 — 82,989 87 1,174 84,250 At December 31, 2020 26 168,809 384 2,507 171,726 Further information on acquisition through business combinations, are provided in Note 9. In thousands of euro Goodwill Assets under Patent, trademarks Software TOTAL Cost At January 1, 2019 2 49,325 102 917 50,346 Additions 4 46,145 — 836 46,985 Additions through business combinations under common control — 24,020 121 543 24,684 Disposal — (2 ) (133 ) — (135 ) Foreign exchange differences — 5,450 14 98 5,562 At December 31, 2019 6 124,938 104 2,394 127,442 In thousands of euro Goodwill Assets under Patent, trademarks Software TOTAL Amortisation/impairment At January 1, 2019 (2 ) (15,298 ) (9 ) (476 ) (15,785 ) Amortisation — — (17 ) (419 ) (436 ) Additions through business combinations under common control — (19,661 ) (121 ) (275 ) (20,057 ) Disposal — — 133 — 133 Impairment (4 ) (4,968 ) — — (4,972 ) Foreign exchange differences — (2,022 ) (3 ) (50 ) (2,075 ) At December 31, 2019 (6 ) (41,949 ) (17 ) (1,220 ) (43,192 ) Net book Value At January 1, 2019 — 34,027 93 441 34,561 At December 31, 2019 — 82,989 87 1,174 84,250 Cost At January 1, 2018 2 28,934 — 570 29,506 Additions — 19,155 103 355 19,613 Foreign exchange differences — 1,236 (1 ) (8 ) 1,227 At December 31, 2018 2 49,325 102 917 50,346 Amortisation/impairment At January 1, 2018 (2 ) (6,090 ) — (262 ) (6,354 ) Amortisation — — (9 ) (218 ) (227 ) Impairment — (9,347 ) — — (9,347 ) Foreign exchange differences — 139 — 4 143 At December 31, 2018 (2 ) (15,298 ) (9 ) (476 ) (15,785 ) ****Assets under construction include all costs of projects that are in development phase. The projects under development relate to electric vehicles, electric vehicle components and software. The impairment loss was recogn i

Business Combination

Business Combination	12 Months Ended
	Dec. 31, 2020
Text Block [abstract]
Business Combination	9. BUSINESS COMBINATIONS A. Acquisition of a business On July 14, 2020, the Group acquired 100% of Arrival LT UAB (previously named Thor Motors UAB) for total consideration of EUR 2,500 satisfied in cash. Arrival LT UAB specialises in developing electric motors, A. Acquisition of a business (continued) inverters, gearboxes, as well as logistical and configuration services for batteries and it is believed that the addition of this entity and its workforce into our Group will strengthen further our R&D capabilities. The agreement for the acquisition was established at the beginning of January 2020. The operations of the company have been integrated with the rest of the Group on January 27, 2020, the date that management has determined the Group obtained control. The share purchase agreement was completed in July 2020 following an administrative delay due to COVID-19. December 31, 2020. a. The identifiable net assets acquired and liabilities recognised on acquisition were: In thousands of euro Note Property, plant and equipment 7 914 Intangible assets 8 4 Trade and other receivables 89 Cash and cash equivalent 59 Lease liabilities (153 ) Deferred tax (56 ) Trade and other payables (880 ) Total (23 ) b. Measurement of fair values Assets acquired Valuation technique -Property, plant and equipment Market comparison technique and cost technique was applied to all assets acquired. The valuation model considers market prices for similar items. c. Goodwill: In thousands of euro Note Consideration transferred 3 Fair value of identifiable net assets 23 Goodwill 26 The goodwill recognised on the acquisition of Arrival LT UAB was attributed to the employee know-how. B. Business combinations under common control During 2020 the Company acquired 2 entities from the Kinetik Group. More specifically, on March 9, 2020, the Company acquired Arrival Solutions Germany GmbH for EUR 25,000 satisfied in cash and on July 20, 2020 Roborace Inc was acquired for USD 10,000 (equivalent EUR 8,700) satisfied in cash. B. Business combinations under common control (continued) On September 21, 2020 Roborace Ltd was contributed by Kinetik to the share premium account the Company for EUR 57,000 without the issuance of any shares. Roborace Ltd and Roborace Inc had cash balances of EUR 55,000 and EUR 39,000 respectively as at the date of acquisition. These entities have been consolidated in the 2020 consolidated financial statements as business combination of entities under common control as these entities were previously subsidiaries of Kinetik S.à r.l., the controlling party. The difference between the acquisition price and the net assets acquired is recognised in retained earnings. An amount of EUR 666,000 was recognised in 2020 following the transactions that have occurred during the year. Similarly, in 2019 an amount of EUR 57,943,000 was recognised in the retained earnings in 2019. The impact of these transactions on tangible and intangible assets is also shown separately in note 7 and 8. On April 11, 2019, the Company entered into a Share Purchase Agreement with K Cybernation S.à r.l. for the acquisition of Arrival M Ltd for an amount of EUR 3,322,000. In addition, on September 2, 2019, K Robolife S.à r.l. sold Arrival R Ltd to Arrival Ltd for an amount of EUR 61,134,000 and Arrival USA Inc to Arrival S.à r.l. for an amount of EUR 4,515,000. Following the completion of the 2019 mentioned transactions, the amount that was due by the Company to K Cybernation S.à r.l. and K Robolife S.à r.l. amounted to EUR 68,971,000. Kinetik S.à r.l., being the shareholder of all the entities mentioned in the above transactions, decided to eliminate these inter-company positions. This resulted in an increase into the share premium of the Company without the issuance of any shares.

Trade And Other Receivables

Trade And Other Receivables	12 Months Ended
	Dec. 31, 2020
Text Block [abstract]
Trade And Other Receivables	10. TRADE AND OTHER RECEIVABLES A. Non-Current 2020 2019 In thousands of euro Loans receivable 1,841 — Other — 1,246 Call deposit 1,617 2,351 Cash Guarantees and deposits 7,328 4,612 Total 10,786 8,209 Non-current The Group classifies its financial assets as at amortised cost if both of the following criteria are met: • The assets are held within a business model whose objective is to collect the contractual cash flows and • The contractual terms give rise to cash flows that are solely payments of principal and interest. (i) Call deposits The Call deposit is comprised of a deposit that we have made for our factory building in the US that is currently under construction with a maturity date of September 2022. (ii) Cash guarantees and deposits Cash guarantees and deposits are amounts that some companies of the Group have deposited in escrow accounts in order to obtain a lease and/or to obtain services provided by third parties. The cash guarantees match each lease duration. The leases expire between 2 to 15years. (iii) Loans receivable During October 2020, Arrival Group entities entered into multiple loan agreements with the Wider Group Employees and provided (a) interest free 12-month (b) 10-year 10-year 10-year non-cash At initial recognition the loans have bene measured at fair value of 27,400,000 (note 13). The loans, as per the accounting policy of the group, are accounted for at amortised cost and the impact of the interest generated is presented in finance income as interest receivable (see note 20). B. Current trade and other receivables 2020 2019 In thousands of euro VAT receivable 5,260 1,943 Tax receivable 21,298 — Call deposit 427 — Deferred charges 43 82 Loans receivable 23,913 1,279 Impairment of other receivables (6 ) — Other receivables 489 5,205 Total 51,424 8,509 Tax receivable relates to R&D Tax Credits that our UK companies have claimed based on the R&D incentive program of the UK government. SME R&D Relief is credited to tax expense in the consolidated statement of profit or (loss) and other comprehensive (loss)/income (see note 16A). The RDEC incentive programme credits are recognised in intangible assets. Call deposit is comprised of a fixed term deposit with maturity May 2021. Loans receivable as of December 31, 2020 relates to loans provided to the employees of the Wider Group Employees in respect of the RSP participants (see note 10 A.iii).

Inventory

Inventory	12 Months Ended
	Dec. 31, 2020
Text Block [abstract]
Inventory	11. INVENTORY In thousands of euro 2020 2019 Raw materials and consumables 11,820 5,716 Inventory 11,820 5,716

Cash And Cash Equivalents

Cash And Cash Equivalents	2 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2020
Statements [Line Items]
Cash And Cash Equivalents		12. CASH AND CASH EQUIVALENTS In thousands of euro 2020 2019 Bank balances 67,080 96,644 Total 67,080 96,644
Arrival Group [Member]
Statements [Line Items]
Cash And Cash Equivalents	4. CASH AND CASH EQUIVALENTS In thousands of euro 2020 Bank balances 28 Total 28

Capital And Reserves

Capital And Reserves	2 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2020
Statements [Line Items]
Capital And Reserves		13. CAPITAL AND RESERVES A. Share capital In thousands of shares 2020 2019 Authorised Ordinary shares (nominal value 2019: EUR 0.25) 880,000 880,000 Preferred A shares (nominal value EUR 0.25) 88,000 88,000 In thousands of euro Ordinary shares issued and fully paid Ordinary shares as of January 1 220,000 16 Contribution of ordinary shares by Kinetik S.à r.l. (12,500 ) — Treasury shares 9,377 — Shares sold to RSP Scheme Members 3,123 — Contribution from share premium — 219,984 Ordinary shares issued and fully paid as of December 31 220,000 220,000 Preferred A shares issued and fully paid Preferred A shares as of January 1 7,333 — Issue of Preferred A shares 11,770 7,333 Preferred A shares issued and fully paid as of December 31 19,103 7,333 Total share capital December 31 239,103 227,333 On October 4, 2019, in an Extraordinary General Meeting of the Company, it was resolved to reduce the nominal value of the ordinary shares from EUR 1.00 to EUR 0.25 and to convert 16,000 ordinary shares with a nominal value of EUR 1.00 each into 64,000 ordinary shares with a nominal value of EUR 0.25 each. In addition, it was decided to increase the share capital of the Company by an amount of EUR 219,984,000.00 by issuing 879,936,000.00 ordinary shares with a nominal value of EUR 0.25 which were entirely paid up through the conversion of existing distributable reserves into share capital of the Company. On December 30, 2019, in an Extraordinary General Meeting of the Company, it was resolved to increase the share capital of the Company by an amount of EUR 7,333,335.25 by issuing 29,333,341 new Preferred A Shares with a nominal value of EUR 0.25 each. Preferred A shares can be converted to ordinary shares upon receipt of a conversion notice and/or immediately prior to an IPO. The shareholders have entered into a Shareholder agreement, which requires the consent of each Shareholder on several matters called Preferred A Reserved Matters. Preferred A Reserved Matters include among others: a)the amendments of the Articles of Association, the winding-up On January 29, 2020, the board of Directors resolved to issue 2,933,334 new Preferred A Shares with a nominal value EUR 0.25 each and with an aggregate share premium of EUR 9,266,666.50 so as to raise the share capital of the Company from EUR 227,333,335.25 to EUR 228,066,668.75. On the same date, these shares were subscribed by United Parcel Service General Services Co (“UPS”) for a total subscription price of EUR 10,000,000.00 with an additional condition on Arrival Luxembourg S.à r.l. On October 8, 2020, Kinetik contributed 50,000,000 ordinary shares of Arrival Luxembourg S.à r.l. with a nominal value of EUR 0.25 each in the Company. On October 8, 2020, the Company adopted the Arrival Restricted Share Plan 2020 under which awards may be made, comprising the acquisition of ordinary shares in the capital of the Company by employees or other eligible persons under and subject to the terms of the RSP and the restricted share agreement to be entered from time to time, with the shares held in their name or on their behalf by a nominee. On the same date, the Company and Computershare Trustees (Jersey) Limited entered into a nominee agreement dated October 8, 2020 under which Computershare Trustees (Jersey) Limited, acting as nominee, shall hold legal title to the shares on behalf of the participant, on and subject to the rules of the RSP and the terms of the restricted share agreement. Between October 9, 2020 and October 12, 2020, the Company entered into multiple restricted share agreements with RSP participants and made awards comprising the acquisition of 12,491,723 ordinary shares in the capital of the Company for an aggregate purchase price of EUR 42,585,408.29 payable by the participants. On October 12, 2020, during the Extraordinary General Meeting of the Company, it was resolved to issue 11,481,274 new Preferred A Shares with a nominal value EUR 0.25 each and with an aggregate share premium of EUR 36,270,377.88 and 17,998,734 new Preferred A Shares with a nominal value EUR 0.25 each and with an aggregate share premium of EUR 56,859,620.60. At the same date, these shares were subscribed by twelve BlackRock Funds (“BlackRock”) for a total subscription price of EUR 100,500,000.48. On October 12, 2020, during the Extraordinary General Meeting of the Company, it was resolved to issue 14,666,671 new Preferred A Shares with a nominal value EUR 0.25 each and with an aggregate share premium of EUR 46,333,333.69. At the same date, these shares were subscribed by WCPF II Holdings Limited for a total subscription price of EUR 50,000,001.44. On October 13, 2020, the Company entered into the Share Transfer Agreement with Computershare Trustees (Jersey) Limited and transferred 12,491,723 of its own ordinary shares, having a nominal value of EUR 0.25 each, to Computershare Trustees (Jersey) Limited in accordance with the restricted share agreements and the nominee agreement. Preference A shares have no preference rights over earnings and dividends. The total value of treasury shares as at year end was EUR 9,377,000 (2019: Nil). The numbers mentioned in the above note are absolute numbers. B. Share premium In thousands of euro January 1, 2019 116,160 Additions 243,576 Contribution to share capital (219,984 ) December 31, 2019 139,752 January 1, 2020 139,752 Additions 148,787 December 31, 2020 288,539 During the financial year 2019, Kinetik made additional capital contributions to the share premium account for an aggregate amount of EUR 150,909,000. An amount of EUR 81,911,000 was contributed in cash and EUR 68,998,000 was contributed in kind. The preference A shareholders made additional capital contributions on January 29 and on October 12, 2020 to the share premium account for an amount of EUR 148,730,000. The additional contributions have been made in cash (2019: EUR 92,667,000 in cash). C. Other Reserves 1. Other Comprehensive Income accumulated in reserves, net of tax In thousands of euro January 1, 2018 2,695 Foreign operations – foreign currency translation differences (554 ) December 31, 2018 2,141 January 1, 2019 2,141 Foreign operations – foreign currency translation differences 4,894 December 31, 2019 7,035 January 1, 2020 7,035 Foreign operations – foreign currency translation differences (7,757 ) December 31 2020 (722 ) 2. Equity Reserves In thousands of euro January 1, 2020 — Treasury shares acquired by the employees of the Group 27,400 Equity-settled Share Plan to employees 24,747 December 31 2020 52,147
Arrival Group [Member]
Statements [Line Items]
Capital And Reserves	5. CAPITAL AND RESERVES A. Share capital In thousands of shares 2020 Authorised Ordinary shares 300 In thousands of euro Ordinary shares issued and fully paid Ordinary shares issued on October 27 30 Ordinary shares issued and fully paid as of December 31 30 On October 27, 2020, the Company was incorporated with an issued and fully paid share capital of EUR 30,000 represented by 300,000 ordinary shares of a nominal value of EUR 0.10 each. Legal Reserve Under Luxembourg law, the Company must appropriate at least 5% of its statutory net profits to a non-distributable

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2020
Text Block [abstract]
Earnings Per Share	14. EARNINGS PER SHARE A. Basic earnings per share The calculation of basic earnings per share (“EPS”) has been based on the following losses attributable to Ordinary shareholders and weighted number of shares outstanding: i. (Loss) attributable to Ordinary shareholders: In thousands of euro 2020 2019 2018 Continuing Total Continuing Total Continuing Total (Loss) for the year, attributable to the owners of the Company (basic) (74,894 ) (74,874 ) (46,542 ) (46,542 ) (30,189 ) (30,189 ) Loss for the year has been adjusted to the percentage held only by the holders of ordinary shares. The Preferred A shares have the same rights to the reserves, but as they have priority over the ordinary shares in the event of liquidation of the Group as such as per IAS 33 requirements, they have been excluded from the basic earnings per share calculation. In thousands of shares 2020 2019 2018 Ordinary shares as at January 1 880,000 16 16 Share split — 48 48 Conversion of distributable reserves into shares — 879,936 879,936 Treasury shares and RSP 2020 shares (11,612 ) — — RSP shares vested 1,451 — — Weighted-average number of Ordinary and Preferred A shares as at December 31 869,839 880,000 880,000 A. Diluted earnings per share i. (Loss) attributable to Ordinary and Preferred A shares (diluted) In thousands of euro 2020 2019 2018 Continuing Total Continuing Total Continuing Total (Loss) for the year, attributable to the owners of the Company (basic) (83,215 ) (83,215 ) (48,096 ) (48,096 ) (30,189 ) (30,189 ) ii. Weighted-average number of Ordinary and Preferred A shares In thousands of shares 2020 2019 2018 Ordinary and Preferred A shares as at January 1 880,161 16 16 Share split — 48 48 Conversion of distributable reserves into shares — 879,936 879,936 Treasury shares and RSP 2020 shares (11,612 ) — — RSP shared vested 1,451 — — Issue of Preference A shares 41,652 161 — Weighted-average number of Ordinary and Preferred A shares as at December 31 911,652 880,161 880,000

Loans And Borrowings

Loans And Borrowings	12 Months Ended
	Dec. 31, 2020
Text Block [abstract]
Loans And Borrowings	15. LOANS AND BORROWINGS Reconciliation of movements of liabilities to cashflows arising from financing activities: In thousands of euro Liabilities Lease liabilities Total January 1, 2020 22,988 22,988 Changes from financing cash flows Payment of lease liabilities (2,371 ) (2,371 ) Payment of interest (4,324 ) (4,324 ) Total hanges from financing cash flows (6,695 ) (6,695 ) The effects of changes in foreign exchange rates (3,438 ) (3,438 ) Other changes Interest on leases 4,733 4,733 New and modification of leases 74,574 74,574 Total of other changes 79,307 79,307 December 31, 2020 92,162 92,162 January 1, 2019 6,195 6,195 Changes from financing cash flows Payment of lease liabilities (713 ) (713 ) Payment of interest (2,574 ) (2,574 ) Total hanges from financing cash flows (3,287 ) (3,287 ) The effects of changes in foreign exchange rates 556 556 Other changes New and modification of leases 19,524 19,524 Total of other changes 19,524 19,524 December 31, 2019 22,988 22,988 In thousands of euro 2020 2019 Non-current Lease liability 87,907 19,943 Total non-current 87,907 19,943 Current lease liabilities Current portion of lease liabilities 4,255 3,045 Total current loans and borrowings 4,255 3,045 In thousands of euro Carrying Total Within one Between 1 and More than December 31, 2020 Leases 92,162 135,595 9,891 42,905 82,799 December 31, 2019 Leases 22,988 68,773 6,610 34,593 27,570 The Group leases office buildings and industrial buildings used for the development and production of our products. Depending on the type of lease and the location, the lease durations vary from 1 to 15 years. As the Group is rapidly expanding, leases for office buildings and research and development facilities typically run for a period of 1 to 2 years. This provides our Group with the flexibility needed. However, leases of factories and leases of buildings where we have or it is forecasted that we will have significant increase in a short period, then leases duration are usually from 9 to 15 years. Some leases rent payments can be adjusted based on changes in local price indices. Where practical, the Group seeks to have an option to extend and/or to renew the lease. This option is exercisable only by the Group. The Group assess at the lease commencement date whether it is reasonably certain to exercise the extension option. For the leases that it is estimated that the option will be exercised, the extended lease maturity date has been factored-in The lease liabilities of the Group are discounted at an average rate of 10.36%. In thousands of euro 2020 2019 Amounts recognised in consolidated statement of profit or loss and other comprehensive (loss)/income Interest on lease liability 4,733 2,574 Expenses relating to short-term leases and low value leases 311 336 5,044 2,910 Amount recognised in the statement of cash flows Total cash outflow for leases 6,695 3,287 The leased buildings are offices and industrial buildings used for the corporate, research and development of our products. In September the Company received a short-term loan from Kinetik for an amount of EUR 10,000,000. The loan was repaid in October. In addition, the Company received a EUR 1,402,000 loan from Kinetik, in October which was then has been assigned to Arrival Ltd. Subsequently this amount was contributed to the share capital of the subsidiary. In August, the Group entered into a short-term loan with HBSC Bank for a total amount of EUR 2,396,000 in respect of its payroll arrangements. The amount was repaid in October.

Income Taxes

Income Taxes	2 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2020
Statements [Line Items]
Income Taxes		16. INCOME TAXES A. Amounts recognised in consolidated statement of profit or loss and other comprehensive (loss)/income In thousands of euro 2020 2019 2018 Current tax Current year (2,186 ) (294 ) (152 ) Other taxes (431 ) (5 ) (5 ) True up adjustments for taxes for prior years 22,040 7,163 — Total current tax income 19,423 6,864 (157 ) Deferred tax True up adjustments for taxes for prior years 954 — Relating to origination and reversal of temporary differences (2,575 ) 65 1,108 Total deferred tax (1,621 ) 65 1,108 Total tax income recognised in consolidated statement of profit or loss and other comprehensive (loss)/income 17,802 6,929 951 B. Movements in deferred tax balances In thousands of euro 2020 2019 Asset Accruals — 96 Tax losses 14,213 2,223 Other 202 360 14,415 2,679 In thousands of euro 2020 2019 Liabilities Tangible and Intangible fixed assets (16,031 ) (2,520 ) (16,031 ) (2,520 ) Net deferred tax (1,616 ) 159 C. Unrecognised deferred tax assets Deferred tax assets have not been recognised in respect of the following items, because it is not sufficiently certain at this stage, the amount of future taxable profit that will be available against which the Group can use the benefits therefrom. In thousands of euro 2020 2019 Tax losses 32,327 24,638 Share options 149 — Tangible and Intangible fixed assets 1,063 — Other temporary differences 2,096 — Total 35,635 24,638 C. Unrecognised deferred tax assets 2020 2019 2018 In thousands of euro Gross Tax Gross Tax Gross Tax Tax losses 162,574 32,327 60,009 10,224 60,009 10,224 D. Tax losses carried forward Tax losses for which no deferred tax asset was recognised and expire as follows: In thousands of euro 2020 2019 2018 Expiry 2021 - 2037 22,770 7,457 249 No expiry 139,804 133,988 59,760 E. Reconciliation of effective tax rate In thousands of euro 2020 2020 2019 2019 2018 2018 Loss before tax from continuing operations (101,017 ) (55,025 ) (31,140 ) Tax rate using the Company’s domestic tax rate 24.94 % (25,194 ) 24.94 % (13,723 ) 26,0 % (8,100 ) Effect of tax rates in foreign jurisdictions (4.17 %) 4,212 (5.96 %) 3,283 (7.36 %) 2,375 Non-deductible (2.70 %) 2,727 (0.31 %) 172 (0.90 %) 280 Tax exempt income/tax incentives 0.85 % (855 ) 0.03 % (16 ) 0.17 % (52 ) Current year losses for which no deferred tax asset is recognised (23.46 %) 23,696 (19.11 %) 10,511 (17.97 %) 5,597 True up adjustments for taxes for prior years* 22.76 % (22,994 ) 13.02 % (7,162 ) 3.39 % (1,056 ) Other domestic taxes (0.60 %) 606 (0.01 %) 6 (0.02 %) 5 Income tax income 17.62 % (17,802 ) 12.59 % (6,929 ) (951 ) * True up adjustment for taxes for prior years relate to changes in estimates to UK R&D claims for prior periods, which were calculated and submitted in 2020. F. Changes in tax rates The UK government has announced that the corporation tax rate of 19% will remain unchanged until March 31, 2023. As from April 1, 2023, the rate will increase to 25%. On April 25, 2019, the Luxembourg parliament has passed legislation, reducing the corporation tax rate for Luxembourg entities, from 26.01% to 24.94%. The new rate is applicable for all Luxembourg entities as from January 1, 2019.
Arrival Group [Member]
Statements [Line Items]
Income Taxes	6. INCOME TAXES A. Unrecognised deferred tax assets Deferred tax assets have not been recognised in respect of the following items, because it is not sufficiently certain at this stage, the amount of future taxable profit that will be available against which the Company can use the benefits therefrom. In thousands of euro 2020 Tax losses (3,387 ) Total (3,387 ) 2020 In thousands of euro Gross Tax Tax losses 3,387 845 B. Tax losses carried forward Tax loses for which no deferred tax asset was recognised and expire as follows: In thousands of euro 2020 Expiry in 2037 3,387 C. Reconciliation of effective tax rate In thousands of euro 2020 Loss before tax from continuing operations (3,387 ) Tax rate using the Company’s domestic tax rate 24.94 % (845 ) Current year losses for which no deferred tax asset is recognised (24.94 %) 845 Income tax expense —

Trade And Other Payables

Trade And Other Payables	2 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2020
Statements [Line Items]
Trade And Other Payables		17. TRADE AND OTHER PAYABLES 2020 2019 Current liabilities Trade payables 9,144 9,131 Accrued expenses 8,815 7,165 Other payables 16,206 4,514 34,165 20,810 Other payables are mainly composed of amounts due to Income Tax and National Insurance contributions for employees and provisions for unused vacations.
Arrival Group [Member]
Statements [Line Items]
Trade And Other Payables	7. TRADE AND OTHER PAYABLES 2020 Current liabilities Other payables and accrued expenses (3,385 ) (3,385 )

Financial Instruments - Fair Va

Financial Instruments - Fair Values	12 Months Ended
	Dec. 31, 2020
Text Block [abstract]
Financial Instruments – Fair Values	18. FINANCIAL INSTRUMENTS – FAIR VALUES The following table shows the carrying amounts and fair values of financial assets and financial liabilities. In thousands of euro Note Financial Total Fair Level in December 31, 2020 Loan receivables 10 29,998 29,998 30,231 3 Cash guarantees and deposits 10 9,364 9,364 — 1 December 31, 2019 Cash guarantees and deposits 10 6,963 6,963 — 1

Income And Expenses

Income And Expenses	12 Months Ended
	Dec. 31, 2020
Text Block [abstract]
Income And Expenses	19. INCOME AND EXPENSES In thousands of euro 2020 2019 2018 A. Other income Government grants 1,023 1,865 1,138 Gain on disposal of fixed assets 6 546 — Gain from modification of lease 1,036 64 — Other income 297 108 29 Total other income 2,362 2,583 1,167 B. Other expenses Impairment of receivable (6 ) — Loss on disposal of fixed assets (5 ) (5 ) — Other charges (6,842 ) (6,906 ) (13 ) Total other expenses (6,853 ) (6,911 ) (13 ) Government grants recognised in other income relate to grants received from Innovate UK, which is part of UK research and innovation, a non-departmental Other charges relate to fees that do not fall within the normal operating activity of the Group. These expenses relate to underwriter fees for the fund raising that occurred in October 2020. In thousands of euro 2020 2019 2018 C. Expenses by nature Depreciation (9,652 ) (4,770 ) (2,120 ) Impairment of intangible assets and receivable (391 ) (4,972 ) (9,347 ) Wages and salaries (31,754 ) (14,260 ) (8,466 ) Consultancy fees (11,667 ) (4,547 ) (1,718 ) Contractors (1,535 ) (2,241 ) (1,316 ) Rent and property utilities (4,691 ) (2,820 ) (2,666 ) Legal fees (5,362 ) (633 ) (311 ) Employee share scheme (9,326 ) — — Raw material and consumables (9,683 ) (5,107 ) (1,640 ) Marketing (1,676 ) (535 ) (938 ) Recruitment fees (1,183 ) (1,447 ) (597 ) Travel expenses and accommodation (1,003 ) (2,365 ) (1,137 ) Fees payable to the Company’s auditors for the 2020 audit of the Company’s annual accounts (1,224 ) — — Fees payable to the Company’s auditors for the prior year audits of the Company’s annual accounts (1,809 ) (393 ) (111 ) Fees payable to the Company’s auditors for other services (272 ) (154 ) (90 ) Other (2,243 ) (3,269 ) (1,878 ) Total cost of administrative, research and development and impairment expenses (93,471 ) (47,513 ) (32,335 ) An amount of EUR 3,429,000 (2019: EUR 1,043,000, 2018: EUR 279,000) of depreciation has been capitalised as it formed part of the costs directly attributable to assets under construction.

Financial Income_Expense

Financial Income/Expense	12 Months Ended
	Dec. 31, 2020
Text Block [abstract]
Financial Income/Expense	20. FINANCIAL INCOME/EXPENSE In thousands of euro 2020 2019 2018 Finance income Foreign exchange differences — — 18 Interest receivable 2,703 51 122 Total finance income 2,703 51 140 Finance cost Bank charges (298 ) (160 ) (72 ) Interest payable (149 ) — (27 ) Interest on leases (4,733 ) (2,574 ) — Foreign exchange differences (578 ) (501 ) — Total finance cost (5,758 ) (3,235 ) (99 )

Share Based Payments

Share Based Payments	12 Months Ended
	Dec. 31, 2020
Text Block [abstract]
Share Based Payments	21. SHARE BASED PAYMENTS On October 2, 2020, Management formally communicated the terms and conditions of the SOP and RSP share schemes to all employees and non-employees On October 26, 2020, the Company entered into the Arrival Share Option Plan 2020 Option Deed. By this Option Deed, each of the SOP participants were granted options under the Arrival Option Plan over an aggregate of 26,899,662 shares with an exercise price of EUR 3.40909. As indicated in Note 13, on October 8, 2020, the Company adopted the RSP under which certain of the Wider Group Employees have been granted ordinary shares subject to the terms of the RSP and the restricted share agreement. These shares were acquired by the eligible employees and they are held in a nominee account until the vesting and non-vesting The RSP and SOP have the same vesting and non-vesting As per the share plan, participants are granted options which have the following vesting conditions: a) 50% of share options granted vest on the first anniversary of the participant’s start date, b) 25% of the share options vest subject to a production rate milestone and c) 25% of the share options vest subject to a contribution milestone. All the above conditions are subject to an exit event, which is the asset or share sale of the Group or an initial public offering (“IPO”). In addition, the employee participating in the share option scheme must be an employee of the Group at the time a vesting condition has been met. The latter condition, it is not applicable for non-employee During the year, there was no other movement in the RSP and SOP other than the issuance of shares mentioned above for the RSP. For 2020 an amount of EUR 24,747,000 has been recognised based on the vesting conditions mentioned above and the estimation made by management as to when these options will be vested. The total charge for the year amounted to EUR 24,747,000. An amount of EUR 9,326,000 is presented in the consolidated statement of profit or loss and other comprehensive (loss)/income and an amount of EUR 15,421,000 was capitalised (see note 23). The service condition (one year of employment) has been met by most of the participants and as such the expense relating to this condition was recognised in the consolidated statement of profit or loss and other comprehensive (loss)/income. The cost of the performance conditions has been spread over the current period and the expected date that it is envisioned that these milestones will be met. Estimation by management is that these milestones will be reached in 2022. The production rate milestone will be met when in a calendar month, a microfactory that has been fully operational and has achieved the set target of production. Similarly, the contribution milestone will be met when the target sales for the relevant vehicles produced by a microfactory on a calendar month are achieved. The awards granted under the SOP carry no dividend or voting rights. 2020 RSP SOP Weighted average fair value at grant date 2.62 1.93 Share price of Preferred A shares based on transactions occurred at the same time of the issues of the scheme 3.41 3.41 Exercise price — 3.41 Contractual life of the options — 10 years In thousands SOP 2020 Outstanding at the beginning of the year — Granted during the year 26,890 Exercised during the year — Expired during the year — Forfeited during the year — Outstanding at the end of the year 26,890 Exercisable at the end of the year — Fair value of the options granted The assessed fair value at the grant date of awards granted during 2020 was EUR 51,804,000. The fair value at grant date is independently determined using Black Scholes Option Pricing Methodology (“BSOPM”). The BSOPM was used to apportion the total equity value between the different classes of securities within the Company’s capital structure. This apportionment captures the current value of each security class with reference to its expected value at a future exit date under different scenarios. The total equity value at the at grant date was estimated by back solving the BSOPM for the price paid by the preference A shareholders which have subscribed to the share capital of the Company few days before to the share capital of the Company (see note 13). By determining the total equity value, the expected exercise dates of the various tranches of the SOP and RSP have been incorporated into the BSOPM to derive the estimated value of the options issued. The model inputs for options granted as of December 31, 2020 included: Input IPO Delayed exit Justification Valuation date October 2, 2020 October 2, 2020 This is the date that the option scheme was communicated to the employees and the date that management has made an estimation of the valuation of the scheme. Given the short time elapsed between the valuation date and the date that the actual agreements were signed management does not consider there to be any material change in value across the valuation date and the date the agreements have been signed (grant date). Risk free rate 0% 0% Risk free rates are taken from yields on UK government bonds for corresponding periods to the exit dates for each valuation event. Rates are linearly interpolated from yields for bonds with the closest available maturities. Where negative, rates have been capped at 0%. Dividend yield Nil Nil No dividend is anticipated to be paid prior to an exit event. SOPs are not entitled to dividends but RSPs are. Expected volatility 146% 102% Based on the average observed volatility in the equity value of listed comparable companies over a historic period commensurate with the expected exit date Expected exit event January 31, 2021 January 1, 2022 Estimation as to when the exit event will occur Scenario weighting 75% 25% This is the expected likelihood of the different exit routes as at the grant dates. We have assumed a one-year

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2020
Text Block [abstract]
Related Party Transactions	22. RELATED PARTY TRANSACTIONS The Group’s related parties include its ultimate parent company Kinetik, key management personnel and any subsidiaries or entities under significant influence of Kinetik. Transactions between the Group entities which have been eliminated on consolidation are not disclosed. The following transactions were carried out with related parties: In thousands of euro Transactions for the year Balance outstanding Related party 2020 2019 2018 December 31, December 31, Arrival Management Systems LLC (10 ) (256 ) — (53 ) Arrival Solutions LLC 4 (30 ) 5 (26 ) Shishkov Rodion — 62 123 — 64 Studio S.à r.l. — — (1,690 ) K Cybernation S.à r.l. — (3,297 ) — — K Robolife S.à r.l. (66 ) (65,649 ) — — Kinetik S.à r.l. (23,959 ) (150,909 ) (44,553 ) — — Charge Cars Ltd 294 (39 ) 165 — — Smart Space LLC (386 ) (152 ) Smekalka LLC (299 ) — — — Experiment X Ltd (66 ) Happy Electron Ltd (127 ) Cybernation Ltd (60 ) Remy Robotics LLC 31 36 — — Denis Sverdlov 195 As described in note 13, Kinetik has contributed part of the shares it owned in Arrival Luxembourg S.à r.l. to the Company having a total nominal value of EUR 12,500,000 as well as contributing EUR 57,000 to the share premium of the Company without the issuance of any shares. During the year Kinetik provided loans to Arrival for a total amount of EUR 11,402,000 (see note 15). In thousands of euro Transactions for the year Key Management personnel 2020 2019 2018 Wages and salaries 2,937 2,903 2,924 Social contributions 334 561 372 Other benefits 48 1 — Other earnings — 34 — RSP loans 13,700 — — SOP expense 3,141 — — The related party transactions relate mainly to acquisition of fixed assets, acquisition of entities, contributions from the ultimate business owner and consulting services. In October 2020, the Group has provided loans to the following executives: Name Nominal Amount Fair Value of In thousands of euro Tim Holbrow 600 426 Avinash Rugoobur 3,000 2,130 Mike Ableson 1,500 978 Daniel Chin 1,000 710 Total 6,100 4,244

Personnel

Personnel	12 Months Ended
	Dec. 31, 2020
Text Block [abstract]
Personnel	23. PERSONNEL In thousands of euro Personnel cost 2020 2019 2018 UK 65,178 27,601 12,562 Russia 31,255 11,265 6,586 US 4,987 2,597 — Germany 4,589 2,165 62 Israel 1,793 57 — Other 2,167 — — 109,969 43,685 19,210 The personnel cost is presented grossed up as certain directly attributable wages and salaries are capitalised as part of the costs of the development projects. The amount capitalised amounted to EUR 68,889,000 (2019: EUR 29,425,000, 2018: EUR 10,744,000). Of these amounts capitalised during 2020 an amount of EUR 15,421,000, relates to the fair value of the SOP where this cost relates to employees which work on the development projects in accordance with IAS 38. The above-mentioned amounts include social security cost of EUR 7,812 (2019: EUR 3,443, 2018: EUR 1,781).

Administration And Legal Expens

Administration And Legal Expenses	2 Months Ended
	Dec. 31, 2020
Arrival Group [member]
Statements [Line Items]
Administration And Legal Expenses	8. ADMINISTRATIVE AND LEGAL EXPENSES In thousands of euro 2020 Other (53 ) Audit fees (49 ) Legal fees (3,285 ) Total other expenses (3,387 ) .

Off Balance Events

Off Balance Events	2 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2020
Statements [Line Items]
Off Balance Events		24. OFF BALANCE EVENTS The Group had no off-balance
Arrival Group [Member]
Statements [Line Items]
Off Balance Events	9. OFF BALANCE EVENTS The Company had no off-balance

Ultimate Parent Undertaking

Ultimate Parent Undertaking	2 Months Ended
	Dec. 31, 2020
Arrival Group [member]
Statements [Line Items]
Ultimate Parent Undertaking	10. ULTIMATE PARENT UNDERTAKING The Company as of December 31, 2020, was a subsidiary of Arrival Luxembourg S.à r.l. and the results of the Company have been included in the consolidated financial statements of Arrival Luxembourg S.à r.l.. As described in note 11, the Company on March 25, 2021 has successfully admitted some of its shares, listed on NASDAQ and as of the same date, Kinetik S.à r.l. became the majority shareholder of the Company, which is also the Company’s ultimate holding company. The related party transactions the Company had during the period amounted to EUR 53,000, which relates to invoice settled by Arrival Luxembourg S.à r.l.. The amount outstanding that is owed to Arrival Luxembourg S.à r.l as at the year-end is EUR 53,000.

Subsequent Events

Subsequent Events	2 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2020
Statements [Line Items]
Subsequent Events		25. SUBSEQUENT EVENTS On January 4, 2021, the Directors of Arrival Group S.A. (now known as Arrival) resolved to increase the share capital of Arrival Group S.A. by EUR 4,265,114.40, to waive any preferential rights subscription rights (to the extent necessary), accept the subscription for the Preferred Exchange New Shares by the following entities and accept payment for these new shares by contributions in kind consisting in shares in Arrival with payment of a share premium in an aggregate amount of EUR 256,234,886.99 in the following numbers and proportions: 1) 13,098,240 ordinary shares by Hyundai Motor Company with a payment of a share premium in an amount of EUR 78,690,176.26, paid by a contribution in kind consisting of 23,466,673 preferred A convertible preference shares in Arrival S.à r.l., 2) 3,274,560 ordinary shares by Kia Motors Corporation with a payment of a share premium in an amount of EUR 19,672,543.21, paid by a contribution in kind consisting of 5,866,668 preferred A convertible preference shares in Arrival Luxembourg S.à r.l., 3) 1,637,280 ordinary shares by United Parcel Service General Services Co. with a payment of a share premium in an amount of EUR 9,836,272.00, paid by a contribution in kind consisting of 2,933,334 preferred A convertible preference shares in Arrival Luxembourg S.à r.l., 4) 8,186,400 ordinary shares by WCPF II Holdings Limited with a payment of a share premium in an amount of EUR 49,181,361.44, paid by a contribution in kind consisting of 14,666,671 preferred A convertible preference shares in Arrival Luxembourg S.à r.l. and 5) 16,454,664 ordinary shares by twelve BlackRock Funds with a payment of a share premium in an amount of EUR 98,854,534.08, paid by a contribution in kind consisting of 29,480,008 preferred A convertible preference shares in Arrival Luxembourg S.à r.l.. All contributions in kind represents a value in an aggregate amount of EUR 260,500,001.39. On February 1, 2021, the Group entered into a prepayment agreement with LG Energy Solutions Ltd (“LG”). The agreement specifies that an amount of EUR 25,830,000 will be paid to LG and in return, LG has to build an assembly line for the manufacturing of cells at the specifications required by the Group. The assembly line will be determined by the Group and LG guarantees the supply of 82,000,000 cells to the Group. On March 23, 2021, the Directors of Arrival Group S.A. res o On March 23, 2021, during the Extraordinary General Meeting of Arrival Group S.A. it was resolved to change the name of the company “Arrival Group” to “Arrival”, to reduce the share capital by an amount of EUR 30,000.00 by cancellation of 300,000 shares held by Arrival Luxembourg S.à r.l. and to allocate the amount of the capital reduction to a free reserve. Also, it was resolved to approve the employee participation schemes of Arrival in accordance with the rules of the Arrival Share Option Plan 2020, the Arrival Restricted Share Plan 2020 and the Arrival Incentive Compensation Plan. On March 23, 2021, during the Extraordinary General Meeting of Arrival Luxembourg S.à r.l. it was resolved to change the name of the company “Arrival S.à r.l.” to “Arrival Luxembourg S.à r.l.”, to reclassify the existing 76,413,354 preferred A convertible preference shares into 76,413,354 ordinary shares and to reduce the corporate capital by an amount of EUR 239,091,338.50 to EUR 12,000.00 by cancellation of 956,365,354 ordinary shares with a nominal value of EUR 0.25 each, and to allocate the proceeds of such capital reduction to a free reserve. On March 24, 2021, the Directors of Arrival S.A. resolved to increase the share capital of Arrival S.A. by EUR 7,232,226.70 so as to raise to an amount of EUR 60,615,726.70 by issuing 72,322,267 Merger New Shares with a nominal value of EUR 0.10 each having the same rights and privileges as the existing shares and to accept the subscription for the Merger New Shares by persons and entities (the “Subscribers”) and to accept payment for these new shares by contributions in kind consisting in all the class A common stock issued by CIIG Merger Corp. with a par value of USD 0.0001 per share (other than such class A common stock held in treasury by CIIG​​​​​​​ Merger Corp.) by the stockholders of CIIG Merger Corp. through the merger of ARSNL Merger Sub Inc. into CIIG Merger Corp. with payment of a share premium in an aggregate amount of EUR 602,413,453.14. All contributions in kind represent a value in an aggregate amount of EUR 609,645,679.84. In March 2021, certain executive officers of the Group received a onetime bonus in connection with the successful merger with CIIG. With the money received, the executive officers settled the loans that they had with certain subsidiaries of the Company, prior to closing of the merger transaction and listing to a total nominal value of EUR 6,100,000. Following the merger with CIIG, the listing on NASADAQ of Arrivals’ shares completed on March 25, 2021. This listing constituted an exit event condition of the share-based payment schemes (see note 21) and as such the options provided to the Wider Group Employees can be exercised up-on lock-up
Arrival Group [Member]
Statements [Line Items]
Subsequent Events	11. SUBSEQUENT EVENTS On January 4, 2021, the Directors of Arrival Group S.A. (previously Arrival Group S.A.) resolved to increase the share capital of Arrival Group S.A. by EUR 4,265,114.40, to waive any preferential rights subscription rights (to the extent necessary), accept the subscription for the Preferred Exchange New Shares by the following entities and accept payment for these new shares by contributions in kind consisting in shares in Arrival with payment of a share premium in an aggregate amount of EUR 256,234,886.99 in the following numbers and proportions: 1) 13,098,240 ordinary shares by Hyundai Motor Company with a payment of a share premium in an amount of EUR 78,690,176.26, paid by a contribution in kind consisting of 23,466,673 preferred A convertible preference shares in Arrival S.à r.l., 2) 3,274,560 ordinary shares by Kia Motors Corporation with a payment of a share premium in an amount of EUR 19,672,543.21, paid by a contribution in kind consisting of 5,866,668 preferred A convertible preference shares in Arrival Luxembourg S.à r.l., 3) 1,637,280 ordinary shares by United Parcel Service General Services Co. with a payment of a share premium in an amount of EUR 9,836,272.00, paid by a contribution in kind consisting of 2,933,334 preferred A convertible preference shares in Arrival Luxembourg S.à r.l., 4) 8,186,400 ordinary shares by WCPF II Holdings Limited with a payment of a share premium in an amount of EUR 49,181,361.44, paid by a contribution in kind consisting of 14,666,671 preferred A convertible preference shares in Arrival Luxembourg S.à r.l. and 5) 16,454,664 ordinary shares by twelve BlackRock Funds with a payment of a share premium in an amount of EUR 98,854,534.08, paid by a contribution in kind consisting of 29,480,008 preferred A convertible preference shares in Arrival Luxembourg S.à r.l.. All contributions in kind represents a value in an aggregate amount of EUR 260,500,001.39. On March 23, 2021, the Directors of Arrival Group S.A. resolved to increase the share capital of Arrival Group S.A. by EUR 49,118,385.60 and accept the subscription for the Ordinary Exchange New Shares by the following entities and accept payment for these new shares by contributions in kind consisting in shares in Arrival S.à r.l. with payment of a share premium in an aggregate amount of EUR 4,033,273,470.30 in the following numbers and proportions: 463,275,682 shares by Kinetik S.à r.l. with a payment of a share premium in an amount of EUR 3,858,887,655.60, paid by a contribution in kind consisting of 830,000,000 shares in Arrival S.à r.l., 20,935,750 shares by Arrival S.à r.l. with a payment of a share premium in an amount of EUR 174,385,814.70, paid by a contribution in kind consisting of 37,508,277 shares in Arrival S.à r.l. and 6,972,424 shares by Computershare Trustees (Jersey) Limited with a payment of a share premium in an amount of EUR 58,077,300.30, paid by a contribution in kind consisting of 12,491,723 shares in Arrival S.à r.l.. All contributions in kind represent a value in an aggregate amount of EUR 4,140,469,156.20. On March 23, 2021, during the Extraordinary General Meeting of Arrival Group S.A. it was resolved to change the name of the company “Arrival Group” to “Arrival”, to reduce the share capital by an amount of EUR 30,000.00 by cancellation of 300,000 shares held by Arrival Luxembourg S.à r.l. and to allocate the amount of the capital reduction to a free reserve. Also, it was resolved to approve the employee participation schemes of Arrival in accordance with the rules of the Arrival Share Option Plan 2020, the Arrival Restricted Share Plan 2020 and the Arrival Incentive Compensation Plan. On March 24, 2021, the Directors of Arrival resolved to increase the share capital of Arrival by EUR 7,232,226.70 so as to raise to an amount of EUR 60,615,726.70 by issuing 72,322,267 Merger New Shares with a nominal value of EUR 0.10 each having the same rights and privileges as the existing shares and to accept the subscription for the Merger New Shares by persons and entities (the “Subscribers”) and to accept payment for these new shares by contributions in kind consisting in all the class A common stock issued by CIIG Merger Corp. with a par value of USD 0.0001 per share (other than such class A common stock held in treasury by CIIG Merger Corp.) by the stockholders of CIIG Merger Corp. through the merger of ARSNL Merger Sub Inc. into CIIG Merger Corp. with payment of a share premium in an aggregate amount of EUR 602,413,453.14. All contributions in kind represent a value in an aggregate amount of EUR 609,645,679.84. Following the merger with CIIG, the listing on NASDAQ of Arrivals’ shares completed on March 25, 2021.

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2020
Text Block [abstract]
Basis of consolidation	Basis of consolidation a) Subsidiary companies Subsidiaries are all the entities controlled by the Group. Control exists where the Group is exposed, or has rights, to variable returns from its involvement with the investee and has the ability to affect those returns through its power over the investee. The existence and effect of potential voting rights that are currently exercisable or convertible are considered when assessing whether the Group controls another entity. The Group also assesses the existence of control when it does not hold more than 50% of the voting rights but is able to govern the financial and operating policies by virtue of de-facto De-facto Subsidiaries are fully consolidated from the date on which control is transferred to the Group. They are de-consolidated b) Business combinations The Group accounts for business combinations using the acquisition method when control is transferred to the Group. The consideration transferred for the acquisition of a subsidiary is the fair value of the assets transferred, the liabilities incurred and the equity interests issued by the Group. Acquisition-related costs are expensed in the consolidated statement of If the business combination is achieved in stages, the fair value at the acquisition date of the interest previously held by the Group is valued again at fair value at the acquisition date through consolidated statement of Any contingent consideration to be transferred by the Group is recognised at fair value at the acquisition date. Subsequent changes to the fair value of the contingent consideration that is considered as an asset or liability is recognised in accordance with IAS 39 either in the consolidated statement of Goodwill is measured as the excess of the sum of the consideration transferred and the fair value of the amount of any non-controlling Business combinations involving entities under common control are recognised as follows: all assets and liabilities are recorded at book value and the difference between the cost of investment and net equity of the entity acquired is recorded as an equity transaction in the statement of changes in equity. A list of the subsidiary companies of the Group are: The Group Country of Participation in share Principal activity and status 2020 2019 % % Arrival Ltd UK 100 % 100 % R&D Arrival Nominees Ltd UK — — Dissolved – February 5, 2019 Arrival Software Ltd UK — 80 % Dissolved – January 14, 2020 Sim-ply UK — — Dissolved – May 7, 2019 Arrival One Ltd UK — — Dissolved – March 26, 2019 Arrival Robotics Ltd (previously named TRA UK 100 % 100 % R&D Arrival R Ltd (previously named Roborace Ltd) UK 100 % 100 % R&D Arrival M Ltd (previously named UK — 100 % Dissolved – September 22, 2020 Arrival Jet Ltd UK 100 % 100 % R&D Arrival Elements Ltd UK — 100 % Dissolved – March 3, 2020 Roborace Ltd UK 100 % — R&D Arrival Management Systems Ltd UK — 100 % Dissolved – January 14, 2020 The Group Country of Participation in share Principal activity and status 2020 2019 % % Arrival Automotive UK Ltd UK 100 % 100 % Manufacturing Arrival Solutions UK Ltd UK 100 % — Services Arrival Mobility Ltd UK 100 % 100 % Services Arrival Vault UK Ltd UK 100 % — Services Arrival Elements B.V. NL 100 % 100 % Distributor Arrival USA Inc (previously named Roborace Inc) US 100 % 100 % R&D Arrival Automotive USA Inc US 100 % 100 % Manufacturing ARSNL Merger Sub Inc US 100 % — Holding Roborace Inc US 100 % — R&D Arrival Solutions USA Inc US 100 % — Services Arrival Automotive PTE Ltd SGP 100 % 100 % Acquisition and holding of participating interests Arrival RUS LLC (previously named Arrival Russia 100 % 100 % R&D Arrival Robotics LLC (previously named TRA Robotics LLC) Russia 100 % 100 % R&D Arrival Germany GmbH GER 100 % 100 % R&D Arrival Automotive Germany GmbH GER 100 % 100 % Manufacturing Arrival Solutions Germany GmbH (previously named Cybernation Germany GmbH) GER 100 % — Services Arrival Israel Ltd IL 100 % 100 % R&D Arrival LT UAB LT 100 % — R&D Arrival (previously named Arrival Group S.A.) Lux 100 % — Holding c) Transactions eliminated at consolidation Intergroup balances and any recognised gains and losses or income and expenses arising from intergroup transactions are eliminated during the preparation of the consolidated financial statements. Unrealised gains arising from transactions with associate companies are eliminated to the extent of the Group’s interest in the net assets of the associate company. Unrealised losses are eliminated in the same way, but only to the extent that there is no evidence for impairment.
Foreign currencies	Foreign currencies 1. Foreign currency transactions Transactions in foreign currencies are translated to the functional currency of the Company at the average rate of the year. Monetary assets and liabilities denominated in foreign currencies are translated to the functional currency of the Company at the exchange rate at the reporting date. Non-monetary Non-monetary currency are translated at the exchange rate at the date of the transaction. Foreign currency differences are generally recognised in consolidated statement of 2. Foreign operations The assets and liabilities of foreign operations, including goodwill and fair value adjustments arising on acquisition, are translated into Euro at the exchange rates at the reporting date. The income and expenses of foreign operations are translated into Euro at the average rate of the year. Foreign currency differences are recognised in Other Comprehensive Income (“OCI”) and accumulated in the translation reserve, except to the extent that the translation difference is allocated to Non-Controlling When a foreign operation is disposed of in its entirety or partially such control, significant influence or joint control is lost, the cumulative amount in the translation reserve related to that foreign operation is reclassified to consolidated statement of Foreign exchange gains and losses are presented netted in the consolidated financial statements The rates applied to convert the foreign currencies into EUR are presented in the following table: Consolidated Balance Sheet Consolidated Statement of profit or (loss) and 2020 2019 2020 2019 2018 British Pounds GBP 1.11234705 1.17536436 1.12440301 1.14171543 1.12873080 Russian Rubles RUB 0.01093289 0.01429464 0.01187300 0.01384692 0.01348233 US Dollar USD 0.81492950 0.89015489 0.87183958 0.89329581 0.84794867 Singapore Dollar SGD 0.61659884 0.66176957 0.63344594 0.6556159 0.64139567 Israeli Shekel ILS 0.25350470 0.25743339 0.25488151 0.25138208 — If the settlement of a monetary item receivable from or payable to a foreign operation is neither planned nor likely to occur in the foreseeable future, the foreign currency differences arising from such items form part of the net investment in the foreign operation. Accordingly, such differences are recognised in OCI and accumulated in the translation reserve.
Property, plant and equipment	Property, plant and equipment Each class of property, plant and equipment is carried at cost less, where applicable, any accumulated depreciation and impairment. The depreciation rates for property, plant and equipment are as follows: Depreciation method Depreciation Rate Plant and machinery Straight line 20 % Furniture & Fittings Straight line 20 % Computer equipment Straight line 33 % Motor vehicles Straight line 20 % At the end of each annual reporting period, the depreciation method, useful life and residual value of each asset is reviewed. Any revisions are accounted for prospectively as a change in estimate. When an asset is disposed, the gain or loss is calculated by comparing proceeds received with its carrying amount and is taken to consolidated statement of Assets that have been acquired but are not available for use are not depreciated. Leasehold improvements under construction are also not depreciated. Leasehold improvements that are available for use are depreciated over the shorter of their useful economic life and the duration of the lease. The right of use of assets for leases is depreciated over the shorter of their useful economic life and the duration of the lease. Depreciation amount is presented in administration expenses. Depreciation of assets used in the development of products is capitalised (see note 19C).
Intangible fixed assets and goodwill	Intangible fixed assets and goodwill Intangible fixed assets are valued at purchase price including the expenses incidental thereto or at production cost, less accumulated amortisation and accumulated impairment losses. Where factors, such as technological advancement or changes in market price, indicate that the residual value or useful life have changed, the residual value, useful life or amortisation rate are amended prospectively to reflect the new circumstances. The assets are reviewed for impairment if the above factors indicate that the carrying amount may be impaired. Expenditure on research activities is recognised in the consolidated statement of Assets under construction involve design for, construction or testing of the production of a new or substantially improved products or processes. The expenditure recognised includes the cost of materials, direct labour, an appropriate proportion of overheads and borrowing costs. Other development expenditure is recognised in the consolidated statement of Intangible assets are amortised as follows: Amortisation method Amortisation Rate Trademarks and Patents Straight line 10 years Software Straight line 33.33% or over the The amortisation of intangible assets is presented in administration expenses. Goodwill is not amortised. In a business combination, goodwill represents the excess of the consideration paid over the fair value of the net identifiable assets, liabilities and contingent liabilities of the entity acquired. Goodwill is stated at cost, less accumulated impairment losses. Goodwill impairment testing is performed annually or more frequently if events or changes in circumstances indicate possible impairment. The carrying amount of goodwill is compared with its recoverable amount which is the higher of the value in use and the fair value less cost to sell.
Trade and other receivables	Trade and other receivables Trade and other receivables without significant financing components are initially measured at the transaction price. Other receivables which have significant financing components, are initially measured at fair value plus transaction costs that are directly attributable to the acquisition or issue. The amount of provision for trade and other receivables represents the difference between the carrying amount and the recoverable amount, which is equal to the present value of the estimated cash flow. Amounts receivable in more than one year are presented in non-current
Financial Assets	Financial Assets The Group classifies its financial assets as assets measured at amortised cost. Financial assets measured at amortised cost are held under the business model that is aimed at collecting contractual cash-flows. The cash-flows of the financial assets relate solely to payments of the principal and interest on the principal amount. Financial assets recognised at amortised cost are initially measured at fair value less costs that are directly attributable to the acquisition or issue of the financial asset. Subsequently they are adjusted to the payments received and the cumulative amortisation of any difference between the original amount and the amount repayable at maturity, using the effective interest method over the term of the financial asset. Interest income from these financial assets is included in finance income. When there is a difference between the fair value and the amount of the transaction at initial recognition, this difference is recognised in finance income or expenses in the consolidated statement of profit or (loss) and other comprehensive (loss)/income.​​​​​​​
Measurement of fair value	Measurement of fair value The Group has an established control framework with respect to the measurement of fair values. This includes a valuation team that has overall responsibility for overseeing all significant fair value measurements, including Level 3 fair values, and reports directly to the chief financial officer. The valuation team regularly reviews significant unobservable inputs and valuation adjustments. If third party information, such as broker quotes or pricing services, is used to measure fair values, then the valuation team assesses the evidence obtained from the third parties to support the conclusion that these valuations meet the requirements of the Standards, including the level in the fair value hierarchy in which the valuations should be classified. Significant valuation issues are reported to the those charged with Governance. When measuring the fair value of an asset or a liability, the Group uses observable market data as far as possible. Fair values are categorised into different levels in a fair value hierarchy based on the inputs used in the valuation techniques as follows: — Level 1: quoted prices (unadjusted) in active markets for identical assets or liabilities. — Level 2: inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly (i.e. as prices) or indirectly (i.e. derived from prices). — Level 3: inputs for the asset or liability that are not based on observable market data (unobservable inputs). If the inputs used to measure the fair value of an asset or a liability fall into different levels of the fair value hierarchy, then the fair value measurement is categorised in its entirety in the same level of the fair value hierarchy as the lowest level input that is significant to the entire measurement.
Inventories	Inventories Inventories are measured at the lower of cost and net realisable value. Cost of inventory is determined using the first-in-first-out
Cash and cash equivalents and Cash flow statement	Cash and cash equivalents and Cash flow statement Cash and cash equivalents, for the purpose of preparing the statement of cash flows, comprise cash in hand and at banks and short-term deposits expiring not more than three months after the acquisition date. Long term deposits are presented on the Balance Sheet as trade and other receivables, as these deposits are not liquid investments. For the purposes of preparing the statement of cash flows, transactions occurred within such long-term deposits appear within cash flows used in operations.​​​​​​​
Impairment of assets	Impairment of assets The carrying amount of the Group’s assets is reviewed at each reporting date to determine whether there is any indication of impairment in the value of the assets. If such indication exists, the asset’s recoverable amount is estimated. The recoverable amount of an asset is determined as the higher of its net selling price in an arm’s length transaction and the present value of the estimated future cash flows from the continued use of the asset and its sale at the end of its useful life. When the recoverable amount of an asset is lower than its carrying amount, this decrease is recognised as an expense in the statement of comprehensive income of the year. In the case that in future accounting periods the amount of impairment that corresponds to the remaining assets decreases due to events that occurred after the recognition of the impairment, the corresponding amount is reversed through consolidated statement of Expected Credit Loss (“ECL”) is a probability-weighted estimate of credit losses. Credit losses are measured as the present value of all cash shortfalls (for example: the difference between the cash flows due to the entity in accordance with the contract and the cash flows that the Group expects to receive). ECLs are discounted at the effective interest rate of the financial asset. Loss allowances for financial assets measured at amortised cost are deducted from the gross carrying amount of the assets. Based on management assessment the impact of ECL is not material to the consolidated financial statements.
Share capital	Share capital Ordinary shares and Preference A shares are classified as equity. Incremental costs directly attributable to the issue of ordinary shares and share options which vest immediately are recognised as a deduction from equity, net of any tax effects. Share premium is the difference between the fair value of the consideration receivable for the issue of shares and the nominal value of the shares. Treasury Shares are ordinary outstanding shares that are held by the issuing company. When such ordinary shares are subsequently reissued any consideration received is included in equity attributable to the owners of the Company.
Trade and other payables	Trade and other payables Trade and other payables are initially recognised at their fair value and subsequently measured at amortised cost. Trade and other payables are classified as current liabilities unless the Group has the right, unconditionally, to postpone the repayment of the liabilities for at least twelve months after the reporting date.
Interest income and expense	Interest income and expense Interest income and expense are recognised within `finance income’ and `finance expense’ in consolidated statement of The effective interest method is a method of calculating the amortised cost of a financial asset or financial liability and of allocating the interest income or interest expense over the relevant period. The effective interest rate is the rate that exactly discounts estimated future cash payments or receipts throughout the expected life of the financial instrument, or a shorter period where appropriate, to the net carrying amount of the financial asset or financial liability. When calculating the effective interest rate, the Group estimates cash flows considering all contractual terms of the financial instrument (for example, prepayment options) but does not consider future credit losses. The calculation includes all paid or received between parties to the contract that are an integral part of the effective interest rate, transaction costs and all other premiums or discounts.
Government grants	Government grants The Group recognises an unconditional government grant relating to development in the consolidated statement of
Leases	Leases 1. Definition of a lease Previously, the Group determined at contract inception whether an arrangement was or contained a lease under IFRIC 4 Determining whether an Arrangement contains a Lease. The Group now assesses whether a contract is or contains a lease based on the definition of a lease under IFRS 16. A contract is, or contains, a lease if the contract conveys the right to control the use of an identified asset for a period of time in exchange for consideration. To assess whether a contract conveys the right to control the use of an identified asset, the Group uses the definition of a lease in IFRS 16. 2. Leased assets At commencement or on modification of a contract that contains a lease component, the Group allocates the consideration in the contract to each lease component on the basis of its relative prices. However, for the leases of property the Group has elected not to separate non-lease non-lease The Group recognises a right-of-use right-of-use The right-of-use straight-line right-of-use In that case the right-of-use right-of-use The lease liability is initially measured at the present value of the lease payments that are not paid at the commencement date, discounted at the discount rate implicit in the lease if that rate can be readily determined, otherwise the Group’s incremental borrowing rate is used. The Group in 2018 and 2019 determined its incremental borrowing rate by obtaining interest rates from various external financing sources and made certain adjustments to reflect the terms of the lease and type of the asset leased. In 2020, in the absence of external borrowing and Group’s credit risk, the Group has calculated its incremental borrowing rate based on property yields adjusted for economic environment and duration of the leases. Lease payments included in the measurement of the lease liability comprise the following: • fixed payments, including in-substance • amounts expected to be payable under a residual value guarantee. The lease liability is measured at amortised cost using the effective interest method. It is remeasured when there is a change in future lease payments arising from a change in an index or rate, if there is a change in the Group’s estimate of the amount expected to be payable under a residual value guarantee, if the Group changes its assessment of whether it will exercise a purchase, extension or termination option or if there is a revised in-substance When the lease liability is remeasured in this way, a corresponding adjustment is made to the carrying amount of the right-of-use right-of-use 3. Short-term leases and leases of low-value The Group has elected not to recognise right-of-use low-value short-term straight-line Policy before January 1, 2019: Determining whether an arrangement contains a lease At inception of an arrangement, the Group determines whether the arrangement is or contains a lease. At inception or on reassessment of an arrangement that contains a lease, the Group separates payments and other consideration required by the arrangement into those for the lease and those for other elements on the basis of their relative fair values. If the Group concludes for a finance lease that it is impracticable to separate the payments reliably, then an asset and a liability are recognised at an amount equal to the fair value of the underlying asset; subsequently, the liability is reduced as payments are made and an imputed finance cost on the liability is recognised using the Group’s incremental borrowing rate. Leased assets Leases of property, plant and equipment that transfer to the Group substantially all of the risks and rewards of ownership are classified as finance leases. The leased assets are measured initially at an amount equal to the lower of their fair value and the present value of the minimum lease payments. Subsequent to initial recognition, the assets are accounted for in accordance with the accounting policy applicable to that asset. Assets held under other leases are classified as operating leases and are not recognised in the Group’s statement of financial position. Lease payments Payments made under operating leases are recognised in consolidated statement of straight-line
Share-based payments	Share-based payments Share-based compensation benefits are provided to employees via the Arrival Share Option Plan (“SOP”) and Arrival Restricted Share Plan (“RSP”). Share-based payment arrangements in which the Company receives goods or services as consideration for its own equity instruments are accounted for as equity-settled share-based payment transactions. The grant date fair value of share-based payments awards granted to employees is recognised as an employee expense or it is capitalised as part of the development cost, with a corresponding increase in equity, over the vesting period. For awards that are vested on grant date, the services received are recognized in full, with a corresponding increase in equity. The fair value of the awards granted is measured using an option valuation model, taking into account the terms and conditions upon which the awards were granted. The amount recognised as an expense is adjusted to reflect the revised estimated number of awards for which the related service and non-market non-market For share-based payment awards with non-vesting true-up
Taxation	Taxation Tax on the profit or loss for the year comprises current and deferred tax. Tax is recognised in the income statement except to the extent that it relates to items recognised directly in equity, in which case it is recognised in equity. The income tax expense or income for the period is the tax payable on the current period’s taxable income based on the applicable income tax rate for each jurisdiction adjusted by changes in deferred taxes and liabilities attributable to temporary differences and to unused tax losses. Current tax is calculated on the basis of the tax laws enacted or substantively enacted at the end of the reporting period in the countries where the Group’s subsidiaries operate and generate taxable income. Deferred tax is provided on temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for taxation purposes. The following temporary differences are not provided for: the initial recognition of goodwill; the initial recognition of assets or liabilities that affect neither accounting nor taxable profit other than in a business combination, and differences relating to investments in subsidiaries to the extent that they will probably not reverse in the foreseeable future. The amount of deferred tax provided is based on the expected manner of realisation or settlement of the carrying amount of assets and liabilities, using tax rates enacted or substantively enacted at the balance sheet date. A deferred tax asset is recognised only if it is probable that future taxable amounts will be available to utilise those temporary differences and losses. Deferred tax assets and liabilities are offset when there is a legally enforceable right to offset current tax assets and liabilities and when the deferred tax balances relate to the same taxing authority. R&D Tax Credits UK registered entities in the Group are eligible to apply for a credit from the UK tax authorities calculated based on the cost of specific qualifying research and development activities in the period (“R&D Tax Credits”). The calculation of these tax credits, and the approval of them by the tax authorities, is sufficiently uncertain, as it requires the approval from the UK authorities that all conditions are met. Research and Development Expenditure Credit (“RDEC”) and Small and Medium Enterprise credits (“SME credit”) are recognised as tax receivable and they are recognised when it is reasonably certain that the amount will be received from Her Majesty’s Revenue and Customs (“HMRC”).
Events after the reporting date	Events after the reporting date Assets and liabilities are adjusted for events which occurred in the period between the reporting date and the date the financial statements are approved by the Board when such events provide evidence of conditions that existed at the end of the reporting period.
Use of estimates and judgements	Use of estimates and judgements The preparation of consolidated financial statements in accordance with IFRS as issued by the International Accounting Standards Board (IASB) requires from Management the exercise of judgment, to make estimates and assumptions that influence the application of accounting principles and the related amounts of assets and liabilities, income and expenses. The estimates and underlying assumptions are based on historical experience and various other factors that are deemed to be reasonable based on knowledge available at that time. Actual results may deviate from such estimates. A higher degree of judgement has been applied to: Impairment testing The assumptions used in the impairment test represent management’s best estimate for the period under consideration. The estimate of the recoverable amount, for purposes of performing the annual impairment test for the research and development cash generating units (“CGU”), was determined using a value-in-use Management has identified that changes in the 2 key assumptions could cause the carrying amount to exceed the recoverable amount. The following table shows the amount by which these 2 assumptions would need to change individually for the estimated recoverable amount to be equal to the carrying amount:​​​​​​​ Change required for Weighted average cost of capital 78 % Product growth rate 0.319 % Capitalised assets in the course of construction Management uses judgement to determine when a project has reached the development phase, to ascertain the ability to use or sell the asset, which is a criteria for capitalization for development expenditure per IAS 38. Management estimates the cost to completion and probable future cash flows that will flow in order to determine if the project is economically viable. If the conditions are met and it is believed that there is a market for the product under development, then all directly attributable costs relating to the project are capitalised. Share based payments In determining the value of the employee share schemes (see Note 21), management used the following assumption: a) participants that will resign before 1 year of service or before the milestone dates are achieved: 4,3 13,75 value-in-use Reasonably possible changes at the reporting date to one of the relevant assumptions, holding other assumptions constant, would have affected the share based payments by the amounts shown below: December 31, 2020 Increase Decrease Resign before one year (1% movement) 0 0 Resign before the milestone dates (1% movement) (62 ) 62 Milestones be achieved (6 months earlier or 6 months later) (872 ) 1,508 Fair Value of Loans Participants in the RSP have received interest bearing and interest free loans, all provided on a full recourse basis. For the determination of fair value of loans granted to employees, employees of Kinetik and ex-employees zero-coupon Reasonably possible changes at the reporting date to one of the relevant assumptions, holding other assumptions constant, would have affected the fair value of the loans by the amounts shown below: December 31, 2020 Increase Decrease Repayment of loans (6 months movement) 134 (16 ) Discount rate (2.5% movement) 43 (44 ) Annual increase in savings (0.2% decrease, 1% increase) (268 ) 54 Initial savings (2.5% movement) (636 ) 646 Volatility (10% movement) 1,239 (1,263 )
Changes in significant accounting policies	Changes in significant accounting policies To date the Group has applied the following accounting policy: Government grants which become receivable and relate to a capital expenditure are credited to a deferred income account and are released to the consolidated statement of This accounting policy has been amended during 2020 and the Group now recognises the government grants which become receivable and relate to capital expenditure are credited in Intangible assets. Management decided to implement this change in accounting policy as several of the assets under development may have indefinite useful economic life and such as the deferred income recognised on the balance sheet would not be released. It is considered by changing the accounting policy that this will give a better view of the financial position of the company. The change of this accounting policy did not have a material impact to the numbers of the prior periods.

Basis of Preparation (Tables)

Basis of Preparation (Tables)	12 Months Ended
	Dec. 31, 2020
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Disclosure of Impact on Transition to IFRS	The impact on transition is summarised below: In thousands of euro January 1, The impact at transition Right of use assets – property plant and equipment 5,720 Lease liability (6,195 ) Retained earnings 475
Disclosure of Group Initially Applied IFRS 16 Using the Modified Retrospective Approach	The Group initially applied IFRS 16 at January 1, 2019, using the modified retrospective approach. Under this approach, comparative information is not restated and the cumulative effect of initially applying IFRS 16 is recognised in retained earnings at the date of initial application. In thousands of euro Lease liabilities at transition Operating lease commitments at December 31, 2018 as disclosed under IAS 17 14,847 Discounted using the incremental borrowing rate at January 1, 2019* 6,195 Lease liabilities recognised at January 1, 2019 6,195

Significant Accounting Polici_3

Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2020
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Summary of List of the Subsidiary Companies of the Group	A list of the subsidiary companies of the Group are: The Group Country of Participation in share Principal activity and status 2020 2019 % % Arrival Ltd UK 100 % 100 % R&D Arrival Nominees Ltd UK — — Dissolved – February 5, 2019 Arrival Software Ltd UK — 80 % Dissolved – January 14, 2020 Sim-ply UK — — Dissolved – May 7, 2019 Arrival One Ltd UK — — Dissolved – March 26, 2019 Arrival Robotics Ltd (previously named TRA UK 100 % 100 % R&D Arrival R Ltd (previously named Roborace Ltd) UK 100 % 100 % R&D Arrival M Ltd (previously named UK — 100 % Dissolved – September 22, 2020 Arrival Jet Ltd UK 100 % 100 % R&D Arrival Elements Ltd UK — 100 % Dissolved – March 3, 2020 Roborace Ltd UK 100 % — R&D Arrival Management Systems Ltd UK — 100 % Dissolved – January 14, 2020 The Group Country of Participation in share Principal activity and status 2020 2019 % % Arrival Automotive UK Ltd UK 100 % 100 % Manufacturing Arrival Solutions UK Ltd UK 100 % — Services Arrival Mobility Ltd UK 100 % 100 % Services Arrival Vault UK Ltd UK 100 % — Services Arrival Elements B.V. NL 100 % 100 % Distributor Arrival USA Inc (previously named Roborace Inc) US 100 % 100 % R&D Arrival Automotive USA Inc US 100 % 100 % Manufacturing ARSNL Merger Sub Inc US 100 % — Holding Roborace Inc US 100 % — R&D Arrival Solutions USA Inc US 100 % — Services Arrival Automotive PTE Ltd SGP 100 % 100 % Acquisition and holding of participating interests Arrival RUS LLC (previously named Arrival Russia 100 % 100 % R&D Arrival Robotics LLC (previously named TRA Robotics LLC) Russia 100 % 100 % R&D Arrival Germany GmbH GER 100 % 100 % R&D Arrival Automotive Germany GmbH GER 100 % 100 % Manufacturing Arrival Solutions Germany GmbH (previously named Cybernation Germany GmbH) GER 100 % — Services Arrival Israel Ltd IL 100 % 100 % R&D Arrival LT UAB LT 100 % — R&D Arrival (previously named Arrival Group S.A.) Lux 100 % — Holding
Summary of Conversion of Functional Currency Details	The rates applied to convert the foreign currencies into EUR are presented in the following table: Consolidated Balance Sheet Consolidated Statement of profit or (loss) and 2020 2019 2020 2019 2018 British Pounds GBP 1.11234705 1.17536436 1.12440301 1.14171543 1.12873080 Russian Rubles RUB 0.01093289 0.01429464 0.01187300 0.01384692 0.01348233 US Dollar USD 0.81492950 0.89015489 0.87183958 0.89329581 0.84794867 Singapore Dollar SGD 0.61659884 0.66176957 0.63344594 0.6556159 0.64139567 Israeli Shekel ILS 0.25350470 0.25743339 0.25488151 0.25138208 —
Summary of the Depreciation Rates for Property, Plant and Equipment	The depreciation rates for property, plant and equipment are as follows: Depreciation method Depreciation Rate Plant and machinery Straight line 20 % Furniture & Fittings Straight line 20 % Computer equipment Straight line 33 % Motor vehicles Straight line 20 %
Summary of Intangible Assets are Amortised	Intangible assets are amortised as follows: Amortisation method Amortisation Rate Trademarks and Patents Straight line 10 years Software Straight line 33.33% or over the
Disclosure of Assumptions Would Need to Change Individually for the Estimated Recoverable Amount	The following table shows the amount by which these 2 assumptions would need to change individually for the estimated recoverable amount to be equal to the carrying amount: Change required for Weighted average cost of capital 78 % Product growth rate 0.319 %
Disclosure of Increase (Decrease) in Share Based Payment Due to Unobservable Input	Reasonably possible changes at the reporting date to one of the relevant assumptions, holding other assumptions constant, would have affected the share based payments by the amounts shown below: December 31, 2020 Increase Decrease Resign before one year (1% movement) 0 0 Resign before the milestone dates (1% movement) (62 ) 62 Milestones be achieved (6 months earlier or 6 months later) (872 ) 1,508
Disclosure of Increase (Decrease) in Fair Value of Loan Due to Unobservable Input	Reasonably possible changes at the reporting date to one of the relevant assumptions, holding other assumptions constant, would have affected the fair value of the loans by the amounts shown below: December 31, 2020 Increase Decrease Repayment of loans (6 months movement) 134 (16 ) Discount rate (2.5% movement) 43 (44 ) Annual increase in savings (0.2% decrease, 1% increase) (268 ) 54 Initial savings (2.5% movement) (636 ) 646 Volatility (10% movement) 1,239 (1,263 )

Financial Risk And Capital Ma_2

Financial Risk And Capital Management (Tables)	12 Months Ended
	Dec. 31, 2020
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Summary of Fluctuation of The Main Currencies The Group	The following table shows the fluctuation of the main currencies the Group is using against Euro: 2020 2019 2018 EUR/USD (2.40 %) 5.34 % (3.72 %) EUR/GBP (1.52 %) 1.15 % (1.17 %) EUR/RUB (14.26 %) 2.70 % (12.08 %) EUR/ILS 1.39 % 6.92 % —

Property, Plant And Equipment (

Property, Plant And Equipment (Tables)	12 Months Ended
	Dec. 31, 2020
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Summary Of Property, Plant And Equipment	In thousands of euro Land and Plant and Furniture and Motor Assets under TOTAL Cost At January 1, 2020 23,945 16,268 3,536 116 1,533 45,398 Additions 50,491 10,541 2,460 83 3,731 67,306 Disposals — (157 ) (231 ) — — (388 ) Modification of lease*** 24,506 — — — — 24,506 Additions through business combinations under common control — 139 131 392 — 662 Transfers (1,812 ) (1,812 ) Additions through business combinations 165 735 4 10 — 914 Foreign exchange differences (3,579 ) (1,573 ) (209 ) 1 (122 ) (5,482 ) At December 31, 2020 93,716 25,953 5,691 602 5,142 131,104 Depreciation/impairment At January 1, 2020 (3,549 ) (5,984 ) (864 ) (54 ) — (10,451 ) Additions through business combinations under common control — (59 ) (25 ) (95 ) — (179 ) Depreciation (6,157 ) (4,984 ) (788 ) (72 ) — (12,001 ) Modification of lease*** 1,114 1,114 Transfers 1,812 1,812 Impairment — (25 ) — — — (25 ) Disposal — 157 225 — — 382 Foreign exchange differences 333 574 54 2 — 963 In thousands of euro Land and Plant and Furniture and Motor Assets under TOTAL At December 31, 2020 (6,447 ) (10,321 ) (1,398 ) (219 ) — (18,385 ) Net book Value At January 1, 2020 20,396 10,284 2,672 62 1,533 34,947 At December 31, 2020 87,269 15,632 4,293 383 5,142 112,719 Cost At January 1, 2019 — 8,270 1,029 78 1,475 10,852 Recognition of right-of-use 6,027 — — — — 6,027 Additions 14,732 4,335 2,135 19 — 21,221 Disposals — (3,199 ) (33 ) (188 ) (17 ) (3,437 ) Modification of lease 22 — — — — 22 Additions through business combinations under common control 2,584 5,989 276 189 — 9,038 Foreign exchange differences 580 873 129 18 75 1,675 At December 31, 2019 23,945 16,268 3,536 116 1,533 45,398 Depreciation/impairment At January 1, 2019 — (2,513 ) (339 ) (28 ) — (2,880 ) Recognition of right-of-use (981 ) — — — — (981 ) Additions through business combinations under common control (251 ) (1,547 ) (53 ) (169 ) — (2,020 ) Depreciation (2,267 ) (2,606 ) (465 ) (39 ) — (5,377 ) Modification of lease 42 — — — — 42 Disposal — 981 26 188 — 1,195 Foreign exchange differences (92 ) (299 ) (33 ) (6 ) — (430 ) At December 31, 2019 (3,549 ) (5,984 ) (864 ) (54 ) — (10,451 ) Net book Value At January 1, 2019 — 5,757 690 50 1,475 7,972 At December 31, 2019 20,396 10,284 2,672 62 1,533 34,947 In thousands of euro Plant and Furniture Motor Assets under TOTAL Cost At January 1, 2018 5,249 774 41 1,841 7,905 Additions 1,769 264 37 1,112 3,182 Reclassification 1,466 — — (1,466 ) — Foreign exchange differences (214 ) (9 ) — (12 ) (235 ) At December 31, 2018 8,270 1,029 78 1,475 10,852 Depreciation/impairment At January 1, 2018 (660 ) (110 ) (15 ) — (785 ) Depreciation (1,927 ) (232 ) (13 ) — (2,172 ) Reclassification — — — — — Impairment — — — — — Foreign exchange differences 74 3 — — 77 At December 31, 2018 (2,513 ) (339 ) (28 ) — (2,880 ) * Land and Building comprise of leased buildings and leasehold improvements. The cost of leased buildings amounts to EUR 93,575 (2019: EUR 23,945) and the accumulated depreciation is EUR 6,559 (2019: 3,549). ** Assets under construction classified under property, plant and equipment are assets bought and/or lease hold improvements that are not ready for use. *** During 2020, the Group has entered a number of new leases and amended several existing agreements. The Group has entered into 4 material lease agreements in the USA which have a right of use of asset of EUR 23,770. In addition, the Group has leased office and factory buildings in the UK of total right of use value of EUR 24,683. Due to the growth the Group, we have renegotiated several of the existing lease agreements, which resulted in obtaining better terms and at the same time extent the period of the lease terms. The total modification of the lease amounted to EUR 24,506.

Intangible Assets And Goodwill

Intangible Assets And Goodwill (Tables)	12 Months Ended
	Dec. 31, 2020
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Summary of Intangible Assets And Goodwill	In thousands of euro Goodwill Assets under Patent, trademarks Software TOTAL Cost At January 1, 2020 6 124,938 104 2,394 127,442 Additions 26 91,996 — 2,304 94,326 Additions through business combinations under common control — — 361 — 361 Additions through business combinations — — — 4 4 Transfer (4 ) — — — (4 ) Disposal — — — (10 ) (10 ) Foreign exchange differences — (8,147 ) 2 (150 ) (8,295 ) At December 31, 2020 28 208,787 467 4,542 213,824 Amortisation/impairment At January 1, 2020 (6 ) (41,949 ) (17 ) (1,220 ) (43,192 ) Amortisation — — (27 ) (893 ) (920 ) Additions through business combinations under common control — — (39 ) — (39 ) Transfer 4 — — — 4 Disposal — — — 5 5 Impairment — (366 ) — — (366 ) Foreign exchange differences — 2,337 — 73 2,410 At December 31, 2020 (2 ) (39,978 ) (83 ) (2,035 ) ( ) Net book Value At January 1, 2020 — 82,989 87 1,174 84,250 At December 31, 2020 26 168,809 384 2,507 171,726 Further information on acquisition through business combinations, are provided in Note 9. In thousands of euro Goodwill Assets under Patent, trademarks Software TOTAL Cost At January 1, 2019 2 49,325 102 917 50,346 Additions 4 46,145 — 836 46,985 Additions through business combinations under common control — 24,020 121 543 24,684 Disposal — (2 ) (133 ) — (135 ) Foreign exchange differences — 5,450 14 98 5,562 At December 31, 2019 6 124,938 104 2,394 127,442 In thousands of euro Goodwill Assets under Patent, trademarks Software TOTAL Amortisation/impairment At January 1, 2019 (2 ) (15,298 ) (9 ) (476 ) (15,785 ) Amortisation — — (17 ) (419 ) (436 ) Additions through business combinations under common control — (19,661 ) (121 ) (275 ) (20,057 ) Disposal — — 133 — 133 Impairment (4 ) (4,968 ) — — (4,972 ) Foreign exchange differences — (2,022 ) (3 ) (50 ) (2,075 ) At December 31, 2019 (6 ) (41,949 ) (17 ) (1,220 ) (43,192 ) Net book Value At January 1, 2019 — 34,027 93 441 34,561 At December 31, 2019 — 82,989 87 1,174 84,250 Cost At January 1, 2018 2 28,934 — 570 29,506 Additions — 19,155 103 355 19,613 Foreign exchange differences — 1,236 (1 ) (8 ) 1,227 At December 31, 2018 2 49,325 102 917 50,346 Amortisation/impairment At January 1, 2018 (2 ) (6,090 ) — (262 ) (6,354 ) Amortisation — — (9 ) (218 ) (227 ) Impairment — (9,347 ) — — (9,347 ) Foreign exchange differences — 139 — 4 143 At December 31, 2018 (2 ) (15,298 ) (9 ) (476 ) (15,785 )

Business Combination (Tables)

Business Combination (Tables)	12 Months Ended
	Dec. 31, 2020
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Summary of Identifiable Assets Acquired And Liabilities	a. The identifiable net assets acquired and liabilities recognised on acquisition were: In thousands of euro Note Property, plant and equipment 7 914 Intangible assets 8 4 Trade and other receivables 89 Cash and cash equivalent 59 Lease liabilities (153 ) Deferred tax (56 ) Trade and other payables (880 ) Total (23 )
Summary Of Goodwill Recognised As Of Acquisition Date	c. Goodwill: In thousands of euro Note Consideration transferred 3 Fair value of identifiable net assets 23 Goodwill 26

Trade And Other Receivables (Ta

Trade And Other Receivables (Tables)	12 Months Ended
	Dec. 31, 2020
Text Block [abstract]
Summary of Non-Current Trade And Other Receivables	A. Non-Current 2020 2019 In thousands of euro Loans receivable 1,841 — Other — 1,246 Call deposit 1,617 2,351 Cash Guarantees and deposits 7,328 4,612 Total 10,786 8,209
Summary of Current Trade And Other Receivables	B. Current trade and other receivables 2020 2019 In thousands of euro VAT receivable 5,260 1,943 Tax receivable 21,298 — Call deposit 427 — Deferred charges 43 82 Loans receivable 23,913 1,279 Impairment of other receivables (6 ) — Other receivables 489 5,205 Total 51,424 8,509

Inventory (Tables)

Inventory (Tables)	12 Months Ended
	Dec. 31, 2020
Text Block [abstract]
Summary of Inventories	In thousands of euro 2020 2019 Raw materials and consumables 11,820 5,716 Inventory 11,820 5,716

Cash And Cash Equivalents (Tabl

Cash And Cash Equivalents (Tables)	2 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2020
Statements [Line Items]
Summary of Cash And Cash Equivalents		In thousands of euro 2020 2019 Bank balances 67,080 96,644 Total 67,080 96,644
Arrival Group [Member]
Statements [Line Items]
Summary of Cash And Cash Equivalents	In thousands of euro 2020 Bank balances 28 Total 28

Capital And Reserves (Tables)

Capital And Reserves (Tables)	2 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2020
Statements [Line Items]
Summary of Classes Of Share Capital		A. Share capital In thousands of shares 2020 2019 Authorised Ordinary shares (nominal value 2019: EUR 0.25) 880,000 880,000 Preferred A shares (nominal value EUR 0.25) 88,000 88,000 In thousands of euro Ordinary shares issued and fully paid Ordinary shares as of January 1 220,000 16 Contribution of ordinary shares by Kinetik S.à r.l. (12,500 ) — Treasury shares 9,377 — Shares sold to RSP Scheme Members 3,123 — Contribution from share premium — 219,984 Ordinary shares issued and fully paid as of December 31 220,000 220,000 Preferred A shares issued and fully paid Preferred A shares as of January 1 7,333 — Issue of Preferred A shares 11,770 7,333 Preferred A shares issued and fully paid as of December 31 19,103 7,333 Total share capital December 31 239,103 227,333
Summary of Reserves Within Equity		B. Share premium In thousands of euro January 1, 2019 116,160 Additions 243,576 Contribution to share capital (219,984 ) December 31, 2019 139,752 January 1, 2020 139,752 Additions 148,787 December 31, 2020 288,539 1. Other Comprehensive Income accumulated in reserves, net of tax In thousands of euro January 1, 2018 2,695 Foreign operations – foreign currency translation differences (554 ) December 31, 2018 2,141 January 1, 2019 2,141 Foreign operations – foreign currency translation differences 4,894 December 31, 2019 7,035 January 1, 2020 7,035 Foreign operations – foreign currency translation differences (7,757 ) December 31 2020 (722 ) 2. Equity Reserves In thousands of euro January 1, 2020 — Treasury shares acquired by the employees of the Group 27,400 Equity-settled Share Plan to employees 24,747 December 31 2020 52,147
Arrival Group [Member]
Statements [Line Items]
Summary of Classes Of Share Capital	A. Share capital In thousands of shares 2020 Authorised Ordinary shares 300 In thousands of euro Ordinary shares issued and fully paid Ordinary shares issued on October 27 30 Ordinary shares issued and fully paid as of December 31 30

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2020
Text Block [abstract]
Summary of Basic Earnings Per Share	A. Basic earnings per share The calculation of basic earnings per share (“EPS”) has been based on the following losses attributable to Ordinary shareholders and weighted number of shares outstanding: i. (Loss) attributable to Ordinary shareholders: In thousands of euro 2020 2019 2018 Continuing Total Continuing Total Continuing Total (Loss) for the year, attributable to the owners of the Company (basic) (74,894 ) (74,874 ) (46,542 ) (46,542 ) (30,189 ) (30,189 ) Loss for the year has been adjusted to the percentage held only by the holders of ordinary shares. The Preferred A shares have the same rights to the reserves, but as they have priority over the ordinary shares in the event of liquidation of the Group as such as per IAS 33 requirements, they have been excluded from the basic earnings per share calculation. In thousands of shares 2020 2019 2018 Ordinary shares as at January 1 880,000 16 16 Share split — 48 48 Conversion of distributable reserves into shares — 879,936 879,936 Treasury shares and RSP 2020 shares (11,612 ) — — RSP shares vested 1,451 — — Weighted-average number of Ordinary and Preferred A shares as at December 31 869,839 880,000 880,000
Summary of Diluted Earnings Per Share	A. Diluted earnings per share i. (Loss) attributable to Ordinary and Preferred A shares (diluted) In thousands of euro 2020 2019 2018 Continuing Total Continuing Total Continuing Total (Loss) for the year, attributable to the owners of the Company (basic) (83,215 ) (83,215 ) (48,096 ) (48,096 ) (30,189 ) (30,189 ) ii. Weighted-average number of Ordinary and Preferred A shares In thousands of shares 2020 2019 2018 Ordinary and Preferred A shares as at January 1 880,161 16 16 Share split — 48 48 Conversion of distributable reserves into shares — 879,936 879,936 Treasury shares and RSP 2020 shares (11,612 ) — — RSP shared vested 1,451 — — Issue of Preference A shares 41,652 161 — Weighted-average number of Ordinary and Preferred A shares as at December 31 911,652 880,161 880,000

Loans And Borrowings (Tables)

Loans And Borrowings (Tables)	12 Months Ended
	Dec. 31, 2020
Text Block [abstract]
Summary of Reconciliation of Movements of Liabilities To Cash Flows Arising From Financing Activities	Reconciliation of movements of liabilities to cashflows arising from financing activities: In thousands of euro Liabilities Lease liabilities Total January 1, 2020 22,988 22,988 Changes from financing cash flows Payment of lease liabilities (2,371 ) (2,371 ) Payment of interest (4,324 ) (4,324 ) Total hanges from financing cash flows (6,695 ) (6,695 ) The effects of changes in foreign exchange rates (3,438 ) (3,438 ) Other changes Interest on leases 4,733 4,733 New and modification of leases 74,574 74,574 Total of other changes 79,307 79,307 December 31, 2020 92,162 92,162 January 1, 2019 6,195 6,195 Changes from financing cash flows Payment of lease liabilities (713 ) (713 ) Payment of interest (2,574 ) (2,574 ) Total hanges from financing cash flows (3,287 ) (3,287 ) The effects of changes in foreign exchange rates 556 556 Other changes New and modification of leases 19,524 19,524 Total of other changes 19,524 19,524 December 31, 2019 22,988 22,988 In thousands of euro 2020 2019 Non-current Lease liability 87,907 19,943 Total non-current 87,907 19,943 Current lease liabilities Current portion of lease liabilities 4,255 3,045 Total current loans and borrowings 4,255 3,045
Summary of Maturity Analysis of Operating Lease Payments	In thousands of euro Carrying Total Within one Between 1 and More than December 31, 2020 Leases 92,162 135,595 9,891 42,905 82,799 December 31, 2019 Leases 22,988 68,773 6,610 34,593 27,570
Summary of Lease Liabilities	The lease liabilities of the Group are discounted at an average rate of 10.36%. In thousands of euro 2020 2019 Amounts recognised in consolidated statement of profit or loss and other comprehensive (loss)/income Interest on lease liability 4,733 2,574 Expenses relating to short-term leases and low value leases 311 336 5,044 2,910 Amount recognised in the statement of cash flows Total cash outflow for leases 6,695 3,287

Income Taxes (Tables)

Income Taxes (Tables)	2 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2020
Statements [Line Items]
Summary of Components of Income Tax Expense (Benefit) as follows		In thousands of euro 2020 2019 2018 Current tax Current year (2,186 ) (294 ) (152 ) Other taxes (431 ) (5 ) (5 ) True up adjustments for taxes for prior years 22,040 7,163 — Total current tax income 19,423 6,864 (157 ) Deferred tax True up adjustments for taxes for prior years 954 — Relating to origination and reversal of temporary differences (2,575 ) 65 1,108 Total deferred tax (1,621 ) 65 1,108 Total tax income recognised in consolidated statement of profit or loss and other comprehensive (loss)/income 17,802 6,929 951
Summary of Movements In Deferred Tax Balances		B. Movements in deferred tax balances In thousands of euro 2020 2019 Asset Accruals — 96 Tax losses 14,213 2,223 Other 202 360 14,415 2,679 In thousands of euro 2020 2019 Liabilities Tangible and Intangible fixed assets (16,031 ) (2,520 ) (16,031 ) (2,520 ) Net deferred tax (1,616 ) 159
Summary of Unrecognised Deferred Tax Assets As Follows		Deferred tax assets have not been recognised in respect of the following items, because it is not sufficiently certain at this stage, the amount of future taxable profit that will be available against which the Group can use the benefits therefrom. In thousands of euro 2020 2019 Tax losses 32,327 24,638 Share options 149 — Tangible and Intangible fixed assets 1,063 — Other temporary differences 2,096 — Total 35,635 24,638 2020 2019 2018 In thousands of euro Gross Tax Gross Tax Gross Tax Tax losses 162,574 32,327 60,009 10,224 60,009 10,224
Summary of Tax Losses Carried Forward As Follows		Tax losses for which no deferred tax asset was recognised and expire as follows: In thousands of euro 2020 2019 2018 Expiry 2021 - 2037 22,770 7,457 249 No expiry 139,804 133,988 59,760
Summary of Reconciliation of Effective Tax Rate As Follows		E. Reconciliation of effective tax rate In thousands of euro 2020 2020 2019 2019 2018 2018 Loss before tax from continuing operations (101,017 ) (55,025 ) (31,140 ) Tax rate using the Company’s domestic tax rate 24.94 % (25,194 ) 24.94 % (13,723 ) 26,0 % (8,100 ) Effect of tax rates in foreign jurisdictions (4.17 %) 4,212 (5.96 %) 3,283 (7.36 %) 2,375 Non-deductible (2.70 %) 2,727 (0.31 %) 172 (0.90 %) 280 Tax exempt income/tax incentives 0.85 % (855 ) 0.03 % (16 ) 0.17 % (52 ) Current year losses for which no deferred tax asset is recognised (23.46 %) 23,696 (19.11 %) 10,511 (17.97 %) 5,597 True up adjustments for taxes for prior years* 22.76 % (22,994 ) 13.02 % (7,162 ) 3.39 % (1,056 ) Other domestic taxes (0.60 %) 606 (0.01 %) 6 (0.02 %) 5 Income tax income 17.62 % (17,802 ) 12.59 % (6,929 ) (951 ) * True up adjustment for taxes for prior years relate to changes in estimates to UK R&D claims for prior periods, which were calculated and submitted in 2020.
Arrival Group [Member]
Statements [Line Items]
Summary of Unrecognised Deferred Tax Assets As Follows	A. Unrecognised deferred tax assets Deferred tax assets have not been recognised in respect of the following items, because it is not sufficiently certain at this stage, the amount of future taxable profit that will be available against which the Company can use the benefits therefrom. In thousands of euro 2020 Tax losses (3,387 ) Total (3,387 ) 2020 In thousands of euro Gross Tax Tax losses 3,387 845
Summary of Tax Losses Carried Forward As Follows	B. Tax losses carried forward Tax loses for which no deferred tax asset was recognised and expire as follows: In thousands of euro 2020 Expiry in 2037 3,387
Summary of Reconciliation of Effective Tax Rate As Follows	C. Reconciliation of effective tax rate In thousands of euro 2020 Loss before tax from continuing operations (3,387 ) Tax rate using the Company’s domestic tax rate 24.94 % (845 ) Current year losses for which no deferred tax asset is recognised (24.94 %) 845 Income tax expense —

Trade And Other Payables (Table

Trade And Other Payables (Tables)	2 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2020
Statements [Line Items]
Summary of Trade And Other Payables		2020 2019 Current liabilities Trade payables 9,144 9,131 Accrued expenses 8,815 7,165 Other payables 16,206 4,514 34,165 20,810
Arrival Group [Member]
Statements [Line Items]
Summary of Trade And Other Payables	2020 Current liabilities Other payables and accrued expenses (3,385 ) (3,385 )

Financial Instruments - Fair _2

Financial Instruments - Fair Values (Tables)	12 Months Ended
	Dec. 31, 2020
Text Block [abstract]
Summary of Fair Values of Financial Assets And Financial Liabilities	The following table shows the carrying amounts and fair values of financial assets and financial liabilities. In thousands of euro Note Financial Total Fair Level in December 31, 2020 Loan receivables 10 29,998 29,998 30,231 3 Cash guarantees and deposits 10 9,364 9,364 — 1 December 31, 2019 Cash guarantees and deposits 10 6,963 6,963 — 1

Income And Expenses (Tables)

Income And Expenses (Tables)	12 Months Ended
	Dec. 31, 2020
Text Block [abstract]
Summary of Other Income Expense	In thousands of euro 2020 2019 2018 A. Other income Government grants 1,023 1,865 1,138 Gain on disposal of fixed assets 6 546 — Gain from modification of lease 1,036 64 — Other income 297 108 29 Total other income 2,362 2,583 1,167 B. Other expenses Impairment of receivable (6 ) — Loss on disposal of fixed assets (5 ) (5 ) — Other charges (6,842 ) (6,906 ) (13 ) Total other expenses (6,853 ) (6,911 ) (13 )
Disclosure of Expenses By Nature	Other charges relate to fees that do not fall within the normal operating activity of the Group. These expenses relate to underwriter fees for the fund raising that occurred in October 2020. In thousands of euro 2020 2019 2018 C. Expenses by nature Depreciation (9,652 ) (4,770 ) (2,120 ) Impairment of intangible assets and receivable (391 ) (4,972 ) (9,347 ) Wages and salaries (31,754 ) (14,260 ) (8,466 ) Consultancy fees (11,667 ) (4,547 ) (1,718 ) Contractors (1,535 ) (2,241 ) (1,316 ) Rent and property utilities (4,691 ) (2,820 ) (2,666 ) Legal fees (5,362 ) (633 ) (311 ) Employee share scheme (9,326 ) — — Raw material and consumables (9,683 ) (5,107 ) (1,640 ) Marketing (1,676 ) (535 ) (938 ) Recruitment fees (1,183 ) (1,447 ) (597 ) Travel expenses and accommodation (1,003 ) (2,365 ) (1,137 ) Fees payable to the Company’s auditors for the 2020 audit of the Company’s annual accounts (1,224 ) — — Fees payable to the Company’s auditors for the prior year audits of the Company’s annual accounts (1,809 ) (393 ) (111 ) Fees payable to the Company’s auditors for other services (272 ) (154 ) (90 ) Other (2,243 ) (3,269 ) (1,878 ) Total cost of administrative, research and development and impairment expenses (93,471 ) (47,513 ) (32,335 )

Financial Income_Expense (Table

Financial Income/Expense (Tables)	12 Months Ended
	Dec. 31, 2020
Text Block [abstract]
Summary of Finance Income Expense Transactions	In thousands of euro 2020 2019 2018 Finance income Foreign exchange differences — — 18 Interest receivable 2,703 51 122 Total finance income 2,703 51 140 Finance cost Bank charges (298 ) (160 ) (72 ) Interest payable (149 ) — (27 ) Interest on leases (4,733 ) (2,574 ) — Foreign exchange differences (578 ) (501 ) — Total finance cost (5,758 ) (3,235 ) (99 )

Share Based Payments (Tables)

Share Based Payments (Tables)	12 Months Ended
	Dec. 31, 2020
Text Block [abstract]
Summary of Weighted Average Exercise Prices And Contractual Life of the Share Options	The awards granted under the SOP carry no dividend or voting rights. 2020 RSP SOP Weighted average fair value at grant date 2.62 1.93 Share price of Preferred A shares based on transactions occurred at the same time of the issues of the scheme 3.41 3.41 Exercise price — 3.41 Contractual life of the options — 10 years
Summary of Number of The Share Options	In thousands SOP 2020 Outstanding at the beginning of the year — Granted during the year 26,890 Exercised during the year — Expired during the year — Forfeited during the year — Outstanding at the end of the year 26,890 Exercisable at the end of the year —
Summary of inclusions of Model Inputs For Options Granted	The model inputs for options granted as of December 31, 2020 included: Input IPO Delayed exit Justification Valuation date October 2, 2020 October 2, 2020 This is the date that the option scheme was communicated to the employees and the date that management has made an estimation of the valuation of the scheme. Given the short time elapsed between the valuation date and the date that the actual agreements were signed management does not consider there to be any material change in value across the valuation date and the date the agreements have been signed (grant date). Risk free rate 0% 0% Risk free rates are taken from yields on UK government bonds for corresponding periods to the exit dates for each valuation event. Rates are linearly interpolated from yields for bonds with the closest available maturities. Where negative, rates have been capped at 0%. Dividend yield Nil Nil No dividend is anticipated to be paid prior to an exit event. SOPs are not entitled to dividends but RSPs are. Expected volatility 146% 102% Based on the average observed volatility in the equity value of listed comparable companies over a historic period commensurate with the expected exit date Expected exit event January 31, 2021 January 1, 2022 Estimation as to when the exit event will occur Scenario weighting 75% 25% This is the expected likelihood of the different exit routes as at the grant dates. We have assumed a one-year

Related Party Transactions (Tab

Related Party Transactions (Tables)	12 Months Ended
	Dec. 31, 2020
Text Block [abstract]
Summary of transactions Between Related Parties	The following transactions were carried out with related parties: In thousands of euro Transactions for the year Balance outstanding Related party 2020 2019 2018 December 31, December 31, Arrival Management Systems LLC (10 ) (256 ) — (53 ) Arrival Solutions LLC 4 (30 ) 5 (26 ) Shishkov Rodion — 62 123 — 64 Studio S.à r.l. — — (1,690 ) K Cybernation S.à r.l. — (3,297 ) — — K Robolife S.à r.l. (66 ) (65,649 ) — — Kinetik S.à r.l. (23,959 ) (150,909 ) (44,553 ) — — Charge Cars Ltd 294 (39 ) 165 — — Smart Space LLC (386 ) (152 ) Smekalka LLC (299 ) — — — Experiment X Ltd (66 ) Happy Electron Ltd (127 ) Cybernation Ltd (60 ) Remy Robotics LLC 31 36 — — Denis Sverdlov 195 As described in note 13, Kinetik has contributed part of the shares it owned in Arrival Luxembourg S.à r.l. to the Company having a total nominal value of EUR 12,500,000 as well as contributing EUR 57,000 to the share premium of the Company without the issuance of any shares. During the year Kinetik provided loans to Arrival for a total amount of EUR 11,402,000 (see note 15). In thousands of euro Transactions for the year Key Management personnel 2020 2019 2018 Wages and salaries 2,937 2,903 2,924 Social contributions 334 561 372 Other benefits 48 1 — Other earnings — 34 — RSP loans 13,700 — — SOP expense 3,141 — —
Summary of Detailed Information About Loans Executives	In October 2020, the Group has provided loans to the following executives: Name Nominal Amount Fair Value of In thousands of euro Tim Holbrow 600 426 Avinash Rugoobur 3,000 2,130 Mike Ableson 1,500 978 Daniel Chin 1,000 710 Total 6,100 4,244

Personnel (Tables)

Personnel (Tables)	12 Months Ended
	Dec. 31, 2020
Text Block [abstract]
Summary of Total Cost of Employees as a Personal Cost	In thousands of euro Personnel cost 2020 2019 2018 UK 65,178 27,601 12,562 Russia 31,255 11,265 6,586 US 4,987 2,597 — Germany 4,589 2,165 62 Israel 1,793 57 — Other 2,167 — — 109,969 43,685 19,210

Administration And Legal Expe_2

Administration And Legal Expenses (Tables)	2 Months Ended
	Dec. 31, 2020
Arrival Group [Member]
Statements [Line Items]
Disclosure Details Of Other Operating Expenses	In thousands of euro 2020 Other (53 ) Audit fees (49 ) Legal fees (3,285 ) Total other expenses (3,387 )

Basis of Preparation - Addition

Basis of Preparation - Additional Information (Detail)	Mar. 25, 2021USD ($)	Mar. 31, 2021EUR (€)	Dec. 31, 2019EUR (€)	Jan. 01, 2019	Dec. 31, 2018EUR (€)
Statements [Line Items]
weighted average of the incremental borrowing rate				18.30%
Prepayments of intangible assets			€ 4,644,000		€ 889,000
Government grants of intangible asset			€ 844,000		€ 0
Arrival Group [Member]
Statements [Line Items]
Proceeds from issue of equity | $	$ 611,734,000
Cash on hand		€ 498,638,038

Basis of Preparation - Disclosu

Basis of Preparation - Disclosure of Impact on Transition to IFRS (Detail) € in Thousands	Jan. 01, 2019EUR (€)
The impact at transition
Right of use assets – property plant and equipment	€ 5,720
Lease liability	(6,195)
Retained earnings	€ 475

Basis of Preparation - Disclo_2

Basis of Preparation - Disclosure of Group Initially Applied IFRS 16 Using the Modified Retrospective Approach (Detail) € in Thousands	Jan. 01, 2019EUR (€)
Lease liabilities at transition
Operating lease commitments at December 31, 2018 as disclosed under IAS 17	€ 14,847
Discounted using the incremental borrowing rate at January 1, 2019	6,195
Lease liabilities recognised at January 1, 2019	€ 6,195

Significant Accounting Polici_4

Significant Accounting Policies - Summary of List of the Subsidiary Companies of the Group (Detail)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Arrival Ltd
Disclosure of subsidiaries [line items]
Country of registration	UK
Participation in share capital	100.00%	100.00%
Principal activity and status	R&D
Arrival Nominees Ltd
Disclosure of subsidiaries [line items]
Country of registration	UK
Principal activity and status	Dissolved – February 5, 2019
Arrival Software Ltd
Disclosure of subsidiaries [line items]
Country of registration	UK
Participation in share capital		80.00%
Principal activity and status	Dissolved – January 14, 2020
Sim-ply Designed Ltd
Disclosure of subsidiaries [line items]
Country of registration	UK
Principal activity and status	Dissolved – May 7, 2019
Arrival One Ltd
Disclosure of subsidiaries [line items]
Country of registration	UK
Principal activity and status	Dissolved – March 26, 2019
Arrival Robotics Ltd
Disclosure of subsidiaries [line items]
Country of registration	UK
Participation in share capital	100.00%	100.00%
Principal activity and status	R&D
Arrival R Ltd
Disclosure of subsidiaries [line items]
Country of registration	UK
Participation in share capital	100.00%	100.00%
Principal activity and status	R&D
Arrival M Ltd
Disclosure of subsidiaries [line items]
Country of registration	UK
Participation in share capital		100.00%
Principal activity and status	Dissolved – September 22, 2020
Arrival Jet Ltd
Disclosure of subsidiaries [line items]
Country of registration	UK
Participation in share capital	100.00%	100.00%
Principal activity and status	R&D
Arrival Elements Ltd
Disclosure of subsidiaries [line items]
Country of registration	UK
Participation in share capital		100.00%
Principal activity and status	Dissolved – March 3, 2020
Roborace Ltd
Disclosure of subsidiaries [line items]
Country of registration	UK
Participation in share capital	100.00%
Principal activity and status	R&D
Arrival Management Systems Ltd
Disclosure of subsidiaries [line items]
Country of registration	UK
Participation in share capital		100.00%
Principal activity and status	Dissolved – January 14, 2020
Arrival Automotive UK Ltd
Disclosure of subsidiaries [line items]
Country of registration	UK
Participation in share capital	100.00%	100.00%
Principal activity and status	Manufacturing
Arrival Solutions UK Ltd
Disclosure of subsidiaries [line items]
Country of registration	UK
Participation in share capital	100.00%
Principal activity and status	Services
Arrival Mobility Ltd
Disclosure of subsidiaries [line items]
Country of registration	UK
Participation in share capital	100.00%	100.00%
Principal activity and status	Services
Arrival Vault UK Ltd
Disclosure of subsidiaries [line items]
Country of registration	UK
Participation in share capital	100.00%
Principal activity and status	Services
Arrival Elements B.V
Disclosure of subsidiaries [line items]
Country of registration	NL
Participation in share capital	100.00%	100.00%
Principal activity and status	Distributor
Arrival USA Inc
Disclosure of subsidiaries [line items]
Country of registration	US
Participation in share capital	100.00%	100.00%
Principal activity and status	R&D
Arrival Automotive USA Inc
Disclosure of subsidiaries [line items]
Country of registration	US
Participation in share capital	100.00%	100.00%
Principal activity and status	Manufacturing
ARSNL Merger Sub Inc
Disclosure of subsidiaries [line items]
Country of registration	US
Participation in share capital	100.00%
Principal activity and status	Holding
Roborace Inc
Disclosure of subsidiaries [line items]
Country of registration	US
Participation in share capital	100.00%
Principal activity and status	R&D
Arrival Solutions USA Inc
Disclosure of subsidiaries [line items]
Country of registration	US
Participation in share capital	100.00%
Principal activity and status	Services
Arrival Automotive PTE Ltd
Disclosure of subsidiaries [line items]
Country of registration	SGP
Participation in share capital	100.00%	100.00%
Principal activity and status	Acquisition and holding of participating interests
Arrival RUS LLC
Disclosure of subsidiaries [line items]
Country of registration	Russia
Participation in share capital	100.00%	100.00%
Principal activity and status	R&D
Arrival Robotics LLC
Disclosure of subsidiaries [line items]
Country of registration	Russia
Participation in share capital	100.00%	100.00%
Principal activity and status	R&D
Arrival Germany GmbH
Disclosure of subsidiaries [line items]
Country of registration	GER
Participation in share capital	100.00%	100.00%
Principal activity and status	R&D
Arrival Automotive Germany GmbH
Disclosure of subsidiaries [line items]
Country of registration	GER
Participation in share capital	100.00%	100.00%
Principal activity and status	Manufacturing
Arrival Solutions Germany GmbH
Disclosure of subsidiaries [line items]
Country of registration	GER
Participation in share capital	100.00%
Principal activity and status	Services
Arrival Israel Ltd
Disclosure of subsidiaries [line items]
Country of registration	IL
Participation in share capital	100.00%	100.00%
Principal activity and status	R&D
Arrival LT UAB
Disclosure of subsidiaries [line items]
Country of registration	LT
Participation in share capital	100.00%
Principal activity and status	R&D
Arrival (previously named Arrival Group S.A.)
Disclosure of subsidiaries [line items]
Country of registration	Lux
Participation in share capital	100.00%
Principal activity and status	Holding

Significant Accounting Polici_5

Significant Accounting Policies - Summary of Conversion of Functional Currency Details (Detail) - Employees	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
British Pounds Currency [Member]
Description of conversion of functional Currency [Line Items]
Consolidated Balance Sheet Closing rates	1.11234705	1.17536436
Consolidated Statement of profit or (loss) and other comprehensive (loss)/income Average rates	1.12440301	1.14171543	1.12873080
Russian Rubles Currency [Member]
Description of conversion of functional Currency [Line Items]
Consolidated Balance Sheet Closing rates	0.01093289	0.01429464
Consolidated Statement of profit or (loss) and other comprehensive (loss)/income Average rates	0.01187300	0.01384692	0.01348233
US Dollars Currency [Member]
Description of conversion of functional Currency [Line Items]
Consolidated Balance Sheet Closing rates	0.81492950	0.89015489
Consolidated Statement of profit or (loss) and other comprehensive (loss)/income Average rates	0.87183958	0.89329581	0.84794867
Singapore Dollar Currency [Member]
Description of conversion of functional Currency [Line Items]
Consolidated Balance Sheet Closing rates	0.61659884	0.66176957
Consolidated Statement of profit or (loss) and other comprehensive (loss)/income Average rates	0.63344594	0.6556159	0.64139567
Israeli Shekel Currency [Member]
Description of conversion of functional Currency [Line Items]
Consolidated Balance Sheet Closing rates	0.25350470	0.25743339
Consolidated Statement of profit or (loss) and other comprehensive (loss)/income Average rates	0.25488151	0.25138208

Significant Accounting Polici_6

Significant Accounting Policies - Summary of the Depreciation Rates for Property, Plant and Equipment (Detail)	12 Months Ended
	Dec. 31, 2020
Plant and machinery [member]
Disclosure of depreciation rates for property plant and equipment [Line Items]
Depreciation method	Straight line
Depreciation Rate	20.00%
Furniture & Fittings [member]
Disclosure of depreciation rates for property plant and equipment [Line Items]
Depreciation method	Straight line
Depreciation Rate	20.00%
Computer equipment [member]
Disclosure of depreciation rates for property plant and equipment [Line Items]
Depreciation method	Straight line
Depreciation Rate	33.00%
Motor vehicles [member]
Disclosure of depreciation rates for property plant and equipment [Line Items]
Depreciation method	Straight line
Depreciation Rate	20.00%

Significant Accounting Polici_7

Significant Accounting Policies - Summary of Intangible Assets are Amortised (Detail)	12 Months Ended
	Dec. 31, 2020
Trademarks and Patents [member]
Disclosure of Intangible assets are amortised [line items]
Amortisation method	Straight line
Amortisation Rate	10 years
Software [member]
Disclosure of Intangible assets are amortised [line items]
Amortisation method	Straight line
Amortisation Rate	33.33%

Significant Accounting Polici_8

Significant Accounting Policies - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Statement [line items]
weight average cost of capital	35.00%	35.00%
Growth rate for its terminal value	2.50%	2.50%
Average rate for growth	195.00%	195.00%
Bottom of range [member]
Statement [line items]
Percentage of employee share schemes	4.30%
Top of range [member]
Statement [line items]
Proportion of voting rights held in subsidiary	50.00%
Percentage of employee share schemes	13.75%

Significant Accounting Polici_9

Significant Accounting Policies - Disclosure of Assumptions Would Need to Change Individually for the Estimated Recoverable Amount (Detail)	Dec. 31, 2020
Disclosure of assumptions would need to change individually for the estimated recoverable amount [Line Items]
Weighted average cost of capital	78.00%
Product growth rate	0.319%

Significant Accounting Polic_10

Significant Accounting Policies - Disclosure of Increase (Decrease) in Share Based Payment Due to Unobservable Input (Detail) € in Thousands	12 Months Ended
	Dec. 31, 2020EUR (€)
Resign before one year (1% movement)
Disclosure of Increase Decrease In Share Based Payment Due To Unobservable Input [Line Items]
Increase	€ 0
Decrease	0
Resign before the milestone dates (1% movement)
Disclosure of Increase Decrease In Share Based Payment Due To Unobservable Input [Line Items]
Increase	(62)
Decrease	62
Milestones be achieved (6 months earlier or 6 months later)
Disclosure of Increase Decrease In Share Based Payment Due To Unobservable Input [Line Items]
Increase	(872)
Decrease	€ 1,508

Significant Accounting Polic_11

Significant Accounting Policies - Disclosure of Increase Decrease in Share Based Payment Due to Unobservable Input (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2020
Resign before one year (1% movement)
Disclosure of Increase Decrease In Share Based Payment Due To Unobservable Input [Line Items]
Percent of movement	1.00%
Resign before the milestone dates (1% movement)
Disclosure of Increase Decrease In Share Based Payment Due To Unobservable Input [Line Items]
Percent of movement	1.00%
Milestones be achieved (6 months earlier or 6 months later)
Disclosure of Increase Decrease In Share Based Payment Due To Unobservable Input [Line Items]
Period In Movement Earlier	6 months
Period In Movement Later	6 months

Significant Accounting Polic_12

Significant Accounting Policies - Disclosure of Increase (Decrease) in Fair Value of Loan Due to Unobservable Input (Detail) € in Thousands	12 Months Ended
	Dec. 31, 2020EUR (€)
Repayment of loans (6 months movement)
Disclosure of Increase Decrease In Fair Value Of Loan Due To Unobservable Input [Line Items]
Increase	€ 134
Decrease	(16)
Discount rate (2.5% movement)
Disclosure of Increase Decrease In Fair Value Of Loan Due To Unobservable Input [Line Items]
Increase	43
Decrease	(44)
Annual increase in savings (0.2% decrease, 1% increase)
Disclosure of Increase Decrease In Fair Value Of Loan Due To Unobservable Input [Line Items]
Increase	(268)
Decrease	54
Initial savings (2.5% movement)
Disclosure of Increase Decrease In Fair Value Of Loan Due To Unobservable Input [Line Items]
Increase	(636)
Decrease	646
Volatility (10% movement)
Disclosure of Increase Decrease In Fair Value Of Loan Due To Unobservable Input [Line Items]
Increase	1,239
Decrease	€ (1,263)

Significant Accounting Polic_13

Significant Accounting Policies - Disclosure of Increase (Decrease) in Fair Value of Loan Due to Unobservable Input (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2020
Repayment of loans (6 months movement)
Disclosure of Increase Decrease In Fair Value Of Loan Due To Unobservable Input [Line Items]
Period in movement	6 months
Annual increase in savings (0.2% decrease, 1% increase)
Disclosure of Increase Decrease In Fair Value Of Loan Due To Unobservable Input [Line Items]
Percent of movement decrease	0.20%
Percent of movement Increase	1.00%
Discount rate (2.5% movement)
Disclosure of Increase Decrease In Fair Value Of Loan Due To Unobservable Input [Line Items]
Percent of movement	2.50%
Initial savings (2.5% movement)
Disclosure of Increase Decrease In Fair Value Of Loan Due To Unobservable Input [Line Items]
Percent of movement	2.50%
Volatility (10% movement)
Disclosure of Increase Decrease In Fair Value Of Loan Due To Unobservable Input [Line Items]
Percent of movement	10.00%

Financial Risk And Capital Ma_3

Financial Risk And Capital Management - Summary of Fluctuation of the Main Currencies the Group (Detail)	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
EUR To USD [Member]
Fluctuation Of The Main Currencies The Group Is Using Against Euro [Line Items]
Fluctuation Of The Main Currencies Against Euro Percent	(2.40%)	5.34%	(3.72%)
EUR To GBP [Member]
Fluctuation Of The Main Currencies The Group Is Using Against Euro [Line Items]
Fluctuation Of The Main Currencies Against Euro Percent	(1.52%)	1.15%	(1.17%)
EUR To RUB [Member]
Fluctuation Of The Main Currencies The Group Is Using Against Euro [Line Items]
Fluctuation Of The Main Currencies Against Euro Percent	(14.26%)	2.70%	(12.08%)
EUR To ILS [Member]
Fluctuation Of The Main Currencies The Group Is Using Against Euro [Line Items]
Fluctuation Of The Main Currencies Against Euro Percent	1.39%	6.92%

Financial Risk And Capital Ma_4

Financial Risk And Capital Management - Additional Information (Detail) € in Thousands	Mar. 25, 2021USD ($)	Dec. 31, 2020EUR (€)	Dec. 31, 2019EUR (€)	Dec. 31, 2018EUR (€)
Financial Risk And Capital Management [Line Items]
Increase in share capital		€ 160,557	€ 250,909
Fluctuation of operational foreign exchange rates		(578)	(501)	€ 18
Preferred A Investor [Member]
Financial Risk And Capital Management [Line Items]
Increase in share capital		€ 160,500	€ 250,909
CIIG [Member] | Nonadjusting Events Reporting After Date [Member]
Financial Risk And Capital Management [Line Items]
Increase in capital through merger | $	$ 611,734,000

Property, Plant And Equipment -

Property, Plant And Equipment - Summary of Property, Plant And Equipment (Detail) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about property, plant and equipment [line items]
Beginning Balance	€ 34,947	€ 7,972
Ending balance	112,719	34,947	€ 7,972
Land and buildings [member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning Balance	20,396	0
Ending balance	87,269	20,396	0
Plant and Equipment [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning Balance	10,284	5,757
Ending balance	15,632	10,284	5,757
Fixtures and fittings [member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning Balance	2,672	690
Ending balance	4,293	2,672	690
Motor vehicles [member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning Balance	62	50
Ending balance	383	62	50
Construction in progress [member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning Balance	1,533	1,475
Ending balance	5,142	1,533	1,475
Gross carrying amount [member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning Balance	45,398	10,852	7,905
Additions	67,306	21,221	3,182
Disposals	(388)	(3,437)
Modification of lease	24,506	22
Additions through business combinations under common control	662	9,038
Transfers and Reclassification	(1,812)		0
Additions through business combinations	914
Foreign exchange differences	(5,482)	1,675	(235)
Recognition of right-of-use asset on initial application of IFRS 16		6,027
Ending balance	131,104	45,398	10,852
Gross carrying amount [member] | Land and buildings [member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning Balance	23,945	0
Additions	50,491	14,732
Disposals	0	0
Modification of lease	24,506	22
Additions through business combinations under common control	0	2,584
Transfers and Reclassification	(1,812)
Additions through business combinations	165
Foreign exchange differences	(3,579)	580
Recognition of right-of-use asset on initial application of IFRS 16		6,027
Ending balance	93,716	23,945	0
Gross carrying amount [member] | Plant and Equipment [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning Balance	16,268	8,270	5,249
Additions	10,541	4,335	1,769
Disposals	(157)	(3,199)
Modification of lease	0	0
Additions through business combinations under common control	139	5,989
Transfers and Reclassification			1,466
Additions through business combinations	735
Foreign exchange differences	(1,573)	873	(214)
Recognition of right-of-use asset on initial application of IFRS 16		0
Ending balance	25,953	16,268	8,270
Gross carrying amount [member] | Fixtures and fittings [member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning Balance	3,536	1,029	774
Additions	2,460	2,135	264
Disposals	(231)	(33)
Modification of lease	0	0
Additions through business combinations under common control	131	276
Transfers and Reclassification			0
Additions through business combinations	4
Foreign exchange differences	(209)	129	(9)
Recognition of right-of-use asset on initial application of IFRS 16		0
Ending balance	5,691	3,536	1,029
Gross carrying amount [member] | Motor vehicles [member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning Balance	116	78	41
Additions	83	19	37
Disposals	0	(188)
Modification of lease	0	0
Additions through business combinations under common control	392	189
Transfers and Reclassification			0
Additions through business combinations	10
Foreign exchange differences	1	18	0
Recognition of right-of-use asset on initial application of IFRS 16		0
Ending balance	602	116	78
Gross carrying amount [member] | Construction in progress [member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning Balance	1,533	1,475	1,841
Additions	3,731	0	1,112
Disposals	0	(17)
Modification of lease	0	0
Additions through business combinations under common control	0	0
Transfers and Reclassification			(1,466)
Additions through business combinations	0
Foreign exchange differences	(122)	75	(12)
Recognition of right-of-use asset on initial application of IFRS 16		0
Ending balance	5,142	1,533	1,475
Accumulated depreciation, amortisation and impairment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning Balance	(10,451)	(2,880)	(785)
Disposals	382	1,195
Modification of lease	1,114	42
Additions through business combinations under common control	(179)	(2,020)
Transfers and Reclassification	1,812		0
Foreign exchange differences	963	(430)	77
Depreciation	(12,001)	(5,377)	(2,172)
Impairment	(25)		0
Recognition of right-of-use asset on initial application of IFRS 16		(981)
Ending balance	(18,385)	(10,451)	(2,880)
Accumulated depreciation, amortisation and impairment [member] | Land and buildings [member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning Balance	(3,549)	0
Disposals	0	0
Modification of lease	1,114	42
Additions through business combinations under common control	0	(251)
Transfers and Reclassification	1,812
Foreign exchange differences	333	(92)
Depreciation	(6,157)	(2,267)
Impairment	0
Recognition of right-of-use asset on initial application of IFRS 16		(981)
Ending balance	(6,447)	(3,549)	0
Accumulated depreciation, amortisation and impairment [member] | Plant and Equipment [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning Balance	(5,984)	(2,513)	(660)
Disposals	157	981
Modification of lease		0
Additions through business combinations under common control	(59)	(1,547)
Transfers and Reclassification			0
Foreign exchange differences	574	(299)	74
Depreciation	(4,984)	(2,606)	(1,927)
Impairment	(25)		0
Recognition of right-of-use asset on initial application of IFRS 16		0
Ending balance	(10,321)	(5,984)	(2,513)
Accumulated depreciation, amortisation and impairment [member] | Fixtures and fittings [member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning Balance	(864)	(339)	(110)
Disposals	225	26
Modification of lease		0
Additions through business combinations under common control	(25)	(53)
Transfers and Reclassification			0
Foreign exchange differences	54	(33)	3
Depreciation	(788)	(465)	(232)
Impairment	0		0
Recognition of right-of-use asset on initial application of IFRS 16		0
Ending balance	(1,398)	(864)	(339)
Accumulated depreciation, amortisation and impairment [member] | Motor vehicles [member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning Balance	(54)	(28)	(15)
Disposals	0	188
Modification of lease		0
Additions through business combinations under common control	(95)	(169)
Transfers and Reclassification			0
Foreign exchange differences	2	(6)	0
Depreciation	(72)	(39)	(13)
Impairment	0		0
Recognition of right-of-use asset on initial application of IFRS 16		0
Ending balance	(219)	(54)	(28)
Accumulated depreciation, amortisation and impairment [member] | Construction in progress [member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning Balance	0	0	0
Disposals	0	0
Modification of lease		0
Additions through business combinations under common control	0	0
Transfers and Reclassification			0
Foreign exchange differences	0	0	0
Depreciation	0	0	0
Impairment	0		0
Recognition of right-of-use asset on initial application of IFRS 16		0
Ending balance	€ 0	€ 0	€ 0

Property, Plant And Equipment_2

Property, Plant And Equipment - Summary of Property, Plant And Equipment (Parenthetical) (Detail) € in Thousands	12 Months Ended
	Dec. 31, 2020EUR (€)Agreements	Dec. 31, 2019EUR (€)	Dec. 30, 2019EUR (€)	Jan. 01, 2019EUR (€)	Dec. 31, 2018EUR (€)	Dec. 31, 2017EUR (€)
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	€ 112,719	€ 34,947			€ 7,972
Right-of-use assets				€ 5,720
UNITED STATES
Disclosure of detailed information about property, plant and equipment [line items]
Right-of-use assets	€ 23,770
Number of Lease Agreements | Agreements	4
Gross carrying amount [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	€ 131,104	45,398			€ 10,852	€ 7,905
Modification of lease	24,506	€ 22
Office And Factory Buildings [Member] | UNITED KINGDOM
Disclosure of detailed information about property, plant and equipment [line items]
Right-of-use assets	24,683
Leased Buildings [Member] | Gross carrying amount [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	93,575		€ 23,945
Leased Buildings [Member] | Accumulated depreciation and amortisation [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	€ (6,559)		€ (3,549)

Intangible Assets And Goodwil_2

Intangible Assets And Goodwill - Summary of Intangible Assets And Goodwill (Detail) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Beginning Balance	€ 84,250	€ 34,561
Ending Balance	171,726	84,250	€ 34,561
Cost [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Beginning Balance	127,442	50,346	29,506
Additions	94,326	46,985	19,613
Additions through business combinations under common control	361	24,684
Additions through business combinations	4
Transfer	(4)
Disposal	(10)	(135)
Foreign exchange differences	(8,295)	5,562	1,227
Ending Balance	213,824	127,442	50,346
Amortisation/impairment [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Beginning Balance	(43,192)	(15,785)	(6,354)
Amortisation	(920)	(436)	(227)
Additions through business combinations under common control	(39)	(20,057)
Transfer	4
Disposal	5	133
Impairment	(366)	(4,972)	(9,347)
Foreign exchange differences	2,410	(2,075)	143
Ending Balance	(42,098)	(43,192)	(15,785)
Goodwill [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Ending Balance	26
Goodwill [member] | Cost [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Beginning Balance	6	2	2
Additions	26	4
Transfer	(4)
Ending Balance	28	6	2
Goodwill [member] | Amortisation/impairment [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Beginning Balance	(6)	(2)	(2)
Transfer	4
Impairment		(4)
Ending Balance	(2)	(6)	(2)
Assets under construction [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Beginning Balance	82,989	34,027
Ending Balance	168,809	82,989	34,027
Assets under construction [member] | Cost [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Beginning Balance	124,938	49,325	28,934
Additions	91,996	46,145	19,155
Additions through business combinations under common control		24,020
Disposal		(2)
Foreign exchange differences	(8,147)	5,450	1,236
Ending Balance	208,787	124,938	49,325
Assets under construction [member] | Amortisation/impairment [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Beginning Balance	(41,949)	(15,298)	(6,090)
Additions through business combinations under common control		(19,661)
Impairment	(366)	(4,968)	(9,347)
Foreign exchange differences	2,337	(2,022)	139
Ending Balance	(39,978)	(41,949)	(15,298)
Patent, trademarks and other rights [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Beginning Balance	87	93
Ending Balance	384	87	93
Patent, trademarks and other rights [member] | Cost [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Beginning Balance	104	102
Additions			103
Additions through business combinations under common control	361	121
Disposal		(133)
Foreign exchange differences	2	14	(1)
Ending Balance	467	104	102
Patent, trademarks and other rights [member] | Amortisation/impairment [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Beginning Balance	(17)	(9)
Amortisation	(27)	(17)	(9)
Additions through business combinations under common control	(39)	(121)
Disposal		133
Foreign exchange differences		(3)
Ending Balance	(83)	(17)	(9)
Software [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Beginning Balance	1,174	441
Ending Balance	2,507	1,174	441
Software [member] | Cost [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Beginning Balance	2,394	917	570
Additions	2,304	836	355
Additions through business combinations under common control		543
Additions through business combinations	4
Disposal	(10)
Foreign exchange differences	(150)	98	(8)
Ending Balance	4,542	2,394	917
Software [member] | Amortisation/impairment [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Beginning Balance	(1,220)	(476)	(262)
Amortisation	(893)	(419)	(218)
Additions through business combinations under common control		(275)
Disposal	5
Foreign exchange differences	73	(50)	4
Ending Balance	€ (2,035)	€ (1,220)	€ (476)

Business Combinations - Additio

Business Combinations - Additional Information (Detail)	6 Months Ended
	Dec. 31, 2020EUR (€)	Jul. 14, 2020EUR (€)	Sep. 21, 2020EUR (€)	Jul. 20, 2020EUR (€)	Jul. 20, 2020USD ($)	Mar. 09, 2020EUR (€)	Dec. 31, 2019EUR (€)	Sep. 02, 2019EUR (€)	Apr. 11, 2019EUR (€)
Statement [line items]
Loss reported until acquisition date		€ (210,000)
Profit reported since acquisition	€ 1,254,000
Arrival L T U A B [Member]
Statement [line items]
Percentage of voting equity interests acquired		100.00%
Cash transferred		€ 2,500
Cash and cash equivalents recognised as of acquisition date		59,000
Consideration transferred		3,000
Arrival Solutions Germany GmbH [Member]
Statement [line items]
Cash transferred						€ 25,000
Roborace Inc [Member]
Statement [line items]
Cash transferred				€ 8,700	$ 10,000
Cash and cash equivalents recognised as of acquisition date			€ 39,000
Retained earnings recognized as of acquisition date				€ 666,000
Roborace Ltd [Member]
Statement [line items]
Cash and cash equivalents recognised as of acquisition date			55,000
Retained earnings recognized as of acquisition date		€ 57,943,000
Contributions to share premium			€ 57,000
Arrival M Ltd [Member]
Statement [line items]
Consideration transferred									€ 3,322,000
Arrival R Ltd [Member]
Statement [line items]
Consideration transferred								€ 61,134,000
Arrival U S A Inc [Member]
Statement [line items]
Consideration transferred								€ 4,515,000
K Cybernation S.à r.l. and K Robolife S.à r.l. [Member]
Statement [line items]
Amount due to related party							€ 68,971,000

Business Combinations - Summary

Business Combinations - Summary of Identifiable Assets Acquired And Liabilities (Detail) - Arrival L T U A B [Member] € in Thousands	Jul. 14, 2020EUR (€)
Disclosure of detailed information about business combination [line items]
Property, plant and equipment	€ 914
Intangible assets	4
Trade and other receivables	89
Cash and cash equivalent	59
Lease liabilities	(153)
Deferred tax	(56)
Trade and other payables	(880)
Total	€ (23)

Business Combinations - Summa_2

Business Combinations - Summary of Goodwill Recognised As Of Acquisition Date (Detail) - Arrival L T U A B [Member] € in Thousands	Jul. 14, 2020EUR (€)
Disclosure Of Goodwill Recognised As Of Acquisition Date [Line Items]
Consideration transferred	€ 3
Fair value of identifiable net assets	23
Goodwill	€ 26

Trade And Other Receivables - S

Trade And Other Receivables - Summary of Non-Current Trade and Other Receivables (Detail) - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019
Trade and other non-current receivables [abstract]
Loans receivable	€ 1,841	€ 0
Other	0	1,246
Call deposit	1,617	2,351
Cash Guarantees and deposits	7,328	4,612
Total	€ 10,786	€ 8,209

Trade And Other Receivables -_2

Trade And Other Receivables - Summary of Current Trade and Other Receivables (Detail) - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019
Trade and other current receivables [abstract]
VAT receivable	€ 5,260	€ 1,943
Tax receivable	21,298	0
Call deposit	427	0
Deferred charges	43	82
Loans receivable	23,913	1,279
Impairment of other receivables	(6)	0
Other receivables	489	5,205
Total	€ 51,424	€ 8,509

Trade And Other Receivables - A

Trade And Other Receivables - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2020EUR (€)
Statement [line items]
Notional amount	€ 6,100,000
Fixed term deposit maturity	May 2021
Loans receivable fair value at initial recognition	€ 27,400,000
Interest free 12-month loans [member]
Statement [line items]
Notional amount	€ 38,257,000
Borrowings, maturity	12-month
10-year 1.12% [member]
Statement [line items]
Notional amount	€ 2,451,000
Borrowings, maturity	10-year
Borrowings, interest rate	1.12%
10-year 1.50% [member]
Statement [line items]
Notional amount	€ 1,402,000
Borrowings, maturity	10-year
Borrowings, interest rate	1.50%
Interest free 10-year loans [member]
Statement [line items]
Notional amount	€ 476,000
Borrowings, maturity	10-year
Bottom of range [member]
Statement [line items]
Lease expire duration	2 years
Top of range [member]
Statement [line items]
Lease expire duration	15 years

Inventory - Summary of Inventor

Inventory - Summary of Inventories (Detail) - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019
Classes of current inventories [abstract]
Raw materials and consumables	€ 11,820	€ 5,716
Inventory	€ 11,820	€ 5,716

Cash And Cash Equivalents - Sum

Cash And Cash Equivalents - Summary of Cash And Cash Equivalents (Detail) - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019		Dec. 31, 2018	[1]	Dec. 31, 2017	[1]
Statement [line items]
Bank balances	€ 67,080	€ 96,644
Total	67,080	€ 96,644	[1]	€ 1,053		€ 5,476
Arrival Group [Member]
Statement [line items]
Bank balances	28
Total	€ 28
[1]	Restated to reflect reclassification of cash flows described in note 2

Capital And Reserves - Summary

Capital And Reserves - Summary of Classes of Share Capital (Detail) - EUR (€) € in Thousands, shares in Thousands	2 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2019
Shares issued and fully paid
Shares issued and fully paid		€ 227,333
Issue of new shares		160,557	€ 250,909
Shares issued and fully paid as of December 31	€ 239,103	€ 239,103	€ 227,333
Ordinary Shares [Member]
Authorised
Number Of Share Authorised	880,000	880,000	880,000
Shares issued and fully paid
Shares issued and fully paid		€ 220,000	€ 16
Contribution of ordinary shares by Kinetik S.à r.l.		(12,500)	0
Treasury shares		9,377	0
Shares sold to RSP Scheme Members		3,123	0
Contribution from share premium		0	219,984
Shares issued and fully paid as of December 31	€ 220,000	€ 220,000	€ 220,000
Preferred A Shares [Member]
Authorised
Number Of Share Authorised	88,000	88,000	88,000
Shares issued and fully paid
Shares issued and fully paid		€ 7,333	€ 0
Issue of new shares		11,770	7,333
Shares issued and fully paid as of December 31	€ 19,103	19,103	€ 7,333
Arrival Group [Member]
Shares issued and fully paid
Issue of new shares	30
Shares issued and fully paid as of December 31	€ 30	€ 30
Arrival Group [Member] | Ordinary Shares [Member]
Authorised
Number Of Share Authorised	300	300
Shares issued and fully paid
Issue of new shares	€ 30
Shares issued and fully paid as of December 31	€ 30	€ 30

Capital And Reserves - Summar_2

Capital And Reserves - Summary of Classes of Share Capital (Parenthetical) (Detail) - Arrival Group [Member] - EUR (€)	2 Months Ended
	Dec. 31, 2020	Oct. 27, 2020
Disclosure of classes of share capital [line items]
Date of incorporation	Oct. 27, 2020
Issue and fully paid ordinary share value		€ 30,000
Number of shares issued and fully paid		300,000
Common stock par or stated value per share		€ 0.10

Capital And Reserves - Addition

Capital And Reserves - Additional Information (Detail)	Oct. 13, 2020€ / sharesshares	Oct. 12, 2020EUR (€)shares€ / shares	Jan. 29, 2020EUR (€)vehicles€ / sharesshares	Oct. 04, 2019EUR (€)€ / sharesshares	Dec. 31, 2019EUR (€)€ / shares	Dec. 31, 2020EUR (€)	Oct. 27, 2020€ / shares	Oct. 08, 2020€ / sharesshares	Dec. 30, 2019shares
Capital And Reserves [Line Items]
Eligibility amount for acquisition or disposal				€ 10,000,000
Annual revenue percentage				2.00%
Treasury shares					€ 0	€ 9,377,000
Share premium [member]
Capital And Reserves [Line Items]
Contribution towards share premium		€ 148,730,000			150,909,000
Contribution in cash					81,911,000
Contribution in kind					€ 68,998,000
Additional capital contribution in cash		€ 92,667,000
Kinetik [Member]
Capital And Reserves [Line Items]
Par value per share | € / shares								€ 0.25
shares contributed by associates | shares								50,000,000
Computer Share Trustees Limited [Member]
Capital And Reserves [Line Items]
Par value per share | € / shares	€ 0.25
Number of shares transferred | shares	12,491,723
Arrival Group [Member]
Capital And Reserves [Line Items]
Par value per share | € / shares							€ 0.10
Arrival Group [Member] | Luxembourg law [Member]
Capital And Reserves [Line Items]
Aggregate reserve to be maintained untill it reaches percentage of subscribed capital						10.00%
Arrival Group [Member] | Luxembourg law [Member] | Top of range [member]
Capital And Reserves [Line Items]
Percentage of reserve to be allocated not less than to its statutory net profits to a non distributable legal reserve						5.00%
UPS [Member]
Capital And Reserves [Line Items]
Subscription price			€ 10,000,000
Number of electric vehicles | vehicles			10,000
RSP Participants [Member]
Capital And Reserves [Line Items]
Number of shares acquired | shares		12,491,723
Business consideration for the acquisition		€ 42,585,408.29
Preferred Share A [Member]
Capital And Reserves [Line Items]
Par value per share | € / shares		€ 0.25	€ 0.25
Amount of share capital			€ 227,333,335.25
Share capital amount after increase			€ 228,066,668.75
Preferred Share A [Member] | Share premium [member]
Capital And Reserves [Line Items]
Number of shares issued | shares		11,481,274	2,933,334
Preferred Share A [Member] | Black Rock Funds [Member]
Capital And Reserves [Line Items]
Par value per share | € / shares		€ 0.25
Number of shares issued | shares		17,998,734
Subscription price		€ 100,500,000.48
Preferred Share A [Member] | WCPF II [Member]
Capital And Reserves [Line Items]
Par value per share | € / shares		€ 0.25
Number of shares issued | shares		14,666,671
Subscription price		€ 50,000,001.44
Before Extra Ordinary General Meeting [Member]
Capital And Reserves [Line Items]
Par value per share | € / shares				€ 1
Number of shares conversion | shares				16,000
Conversion price ratio				1.00
After Extra Ordinary General Meeting [Member]
Capital And Reserves [Line Items]
Par value per share | € / shares				€ 0.25
Reduced par value per share | € / shares				€ 0.25	€ 0.25
Number of shares conversion | shares				64,000
Convesrion price per share | € / shares				€ 0.25
Increase in share capital amount				€ 219,984,000	€ 7,333,335.25
Number of shares issued | shares				879,936,000					29,333,341

Capital And Reserves - Summar_3

Capital And Reserves - Summary of Reserves Within Equity (Detail) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of reserves within equity [line items]
Balance	€ 199,245	€ 49,956	€ 36,146
Equity-settled Share Plan to employees	24,747
Balance	320,311	199,245	49,956
Share premium [member]
Disclosure of reserves within equity [line items]
Balance	139,752	116,160
Additions	148,787	243,576
Contribution to share capital		(219,984)
Balance	288,539	139,752	116,160
Other Comprehensive Income accumulated in reserves, net of tax
Disclosure of reserves within equity [line items]
Balance	7,035	2,141	2,695
Foreign operations – foreign currency translation differences	(7,757)	4,894	(554)
Balance	(722)	7,035	€ 2,141
Equity Reserves
Disclosure of reserves within equity [line items]
Balance	0
Treasury shares acquired by the employees of the Group at fair value	27,400
Equity-settled Share Plan to employees	24,747
Balance	€ 52,147	€ 0

Earnings Per Share - Summary of

Earnings Per Share - Summary of Basic Earnings Per Share (Detail) - EUR (€) € in Thousands, shares in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Earnings per share [line items]
(Loss) for the year, attributable to the owners of the Company (basic), Continuing operations	€ (74,894)	€ (46,542)	€ (30,189)
(Loss) for the year, attributable to the owners of the Company (basic)	€ (74,874)	€ (46,542)	€ (30,189)
Earnings per Share Basic [Member]
Weighted average ordinary shares and adjusted weighted average ordinary shares [abstract]
Ordinary and Preferred A shares as at January 1	880,000	16	16
Weighted-average number of Ordinary and Preferred A shares as at December 31	869,839	880,000	880,000
Earnings per Share Basic [Member] | Share split [Member]
Weighted average ordinary shares and adjusted weighted average ordinary shares [abstract]
Increase (decrease) in number of ordinary shares issued		48	48
Earnings per Share Basic [Member] | Conversion of distributable reserves into shares [Member]
Weighted average ordinary shares and adjusted weighted average ordinary shares [abstract]
Increase (decrease) in number of ordinary shares issued		879,936	879,936
Earnings per Share Basic [Member] | Treasury shares and RSP 2020 shares [Member]
Weighted average ordinary shares and adjusted weighted average ordinary shares [abstract]
Increase (decrease) in number of ordinary shares issued	(11,612)
Earnings per Share Basic [Member] | RSP Shared Vested [Member]
Weighted average ordinary shares and adjusted weighted average ordinary shares [abstract]
Increase (decrease) in number of ordinary shares issued	1,451

Earnings Per Share - Summary _2

Earnings Per Share - Summary of Diluted Earnings Per Share (Detail) - EUR (€) € in Thousands, shares in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Earnings per share [line items]
(Loss) for the year, attributable to the owners of the Company (basic), Continuing operations	€ (83,215)	€ (48,096)	€ (30,189)
(Loss) for the year, attributable to the owners of the Company (basic)	€ (83,215)	€ (48,096)	€ (30,189)
Earnings per Share Diluted [Member]
Weighted average ordinary shares and adjusted weighted average ordinary shares [abstract]
Weighted average number of ordinary shares outstanding	880,161	880,000	16
Weighted average number of ordinary shares outstanding		16
Weighted-average number of Ordinary and Preferred A shares	911,652	880,161	880,000
Earnings per Share Diluted [Member] | Share Split [Member]
Weighted average ordinary shares and adjusted weighted average ordinary shares [abstract]
Increase (decrease) in number of ordinary shares issued		48	48
Earnings per Share Diluted [Member] | Conversion Of Distributable Reserves Into Shares [Member]
Weighted average ordinary shares and adjusted weighted average ordinary shares [abstract]
Increase (decrease) in number of ordinary shares issued		879,936	879,936
Earnings per Share Diluted [Member] | Treasury Shares And RSP 2020 Shares [Member]
Weighted average ordinary shares and adjusted weighted average ordinary shares [abstract]
Increase (decrease) in number of ordinary shares issued	11,612
Earnings per Share Diluted [Member] | Issue of Preference A shares [Member]
Weighted average ordinary shares and adjusted weighted average ordinary shares [abstract]
Increase (decrease) in number of ordinary shares issued	41,652	161
Earnings per Share Diluted [Member] | RSP Shared Vested [Member]
Weighted average ordinary shares and adjusted weighted average ordinary shares [abstract]
Increase (decrease) in number of ordinary shares issued	1,451

Loans And Borrowings - Summary

Loans And Borrowings - Summary of Reconciliation of Movements of Liabilities To Cash Flows Arising From Financing Activities (Detail) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Balance, Beginning of Year	€ 22,988	€ 6,195
Changes from financing cash flows
Payment of lease liabilities	(2,371)	(713)
Payment of interest	(4,324)	(2,574)
Total changes from financing cash flows	(6,695)	(3,287)
The effects of changes in foreign exchange rates	(3,438)	556
Interest on leases	4,733	2,574	€ 0
New and modification of leases	74,574	19,524
Total of other changes	79,307	19,524
Balance as of end of the year	92,162	22,988	6,195
Total non-current lease liabilities	87,907	19,943
Current portion of lease liabilities	4,255	3,045
Total current loans and borrowings	4,255	3,045
Lease liabilities [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Balance, Beginning of Year	22,988	6,195
Changes from financing cash flows
Payment of lease liabilities	(2,371)	(713)
Payment of interest	(4,324)	(2,574)
Total changes from financing cash flows	(6,695)	(3,287)
The effects of changes in foreign exchange rates	(3,438)	556
Interest on leases	4,733
New and modification of leases	74,574	19,524
Total of other changes	79,307	19,524
Balance as of end of the year	€ 92,162	€ 22,988	€ 6,195

Loans And Borrowings - Summar_2

Loans And Borrowings - Summary of Maturity Analysis of Operating Lease Payments (Detail) - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure of maturity analysis of operating lease payments [line items]
Leases	€ 135,595	€ 68,773
With in one year [member]
Disclosure of maturity analysis of operating lease payments [line items]
Leases	9,891	6,610
Between 1 and 5 years [member]
Disclosure of maturity analysis of operating lease payments [line items]
Leases	42,905	34,593
More than 5 years [member]
Disclosure of maturity analysis of operating lease payments [line items]
Leases	82,799	27,570
Gross carrying amount [member]
Disclosure of maturity analysis of operating lease payments [line items]
Leases	€ 92,162	€ 22,988

Loans And Borrowings - Summar_3

Loans And Borrowings - Summary of Lease liabilities (Detail) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Amounts recognized in profit or loss
Interest on lease liability	€ 4,733	€ 2,574	€ 0
Expenses relating to short-term leases and low value leases	311	336
Expenses of lease liabilities	5,044	2,910
Amount recognized in the statement of cash flows
Total cash outflow for leases	€ 6,695	€ 3,287

Loans And Borrowings - Summar_4

Loans And Borrowings - Summary of Lease liabilities (Parenthetical) (Detail)	Dec. 31, 2020
Lease liabilities [abstract]
Discount rate on lease liabilities	10.36%

Loans And Borrowings - Addition

Loans And Borrowings - Additional Information (Detail) - EUR (€)	12 Months Ended
	Dec. 31, 2020	Oct. 31, 2020	Sep. 30, 2020	Aug. 30, 2020	Dec. 31, 2019
Loans And Borrowings [Line Items]
Current borrowings	€ 4,255,000				€ 3,045,000
Bottom of range [member]
Loans And Borrowings [Line Items]
Lessee, Operating Lease, Term of Contract	1 year
Bottom of range [member] | leases for office building [Member]
Loans And Borrowings [Line Items]
Lessee, Operating Lease, Term of Contract	1 year
Lessee, Operating Lease, Renewal Term	9 years
Top of range [member]
Loans And Borrowings [Line Items]
Lessee, Operating Lease, Term of Contract	15 years
Top of range [member] | leases for office building [Member]
Loans And Borrowings [Line Items]
Lessee, Operating Lease, Term of Contract	2 years
Lessee, Operating Lease, Renewal Term	15 years
Kinetik loan [Member]
Loans And Borrowings [Line Items]
Current borrowings			€ 10,000,000
Loans received		€ 1,402,000
HBSC Bank [Member]
Loans And Borrowings [Line Items]
Current borrowings				€ 2,396,000

Income Taxes - Summary of Movem

Income Taxes - Summary of Movements In Deferred Tax Balances (Detail) - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019
Statement [line items]
Deferred tax assets	€ 1,134	€ 159
Deferred tax liabilities	(2,750)
Net deferred tax	(1,616)	159
Deferred Tax Asset Accruals [Member]
Statement [line items]
Deferred tax assets		96
Deferred Tax Asset Tax losses [Member]
Statement [line items]
Deferred tax assets	14,213	2,223
Deferred Tax Asset Other [Member]
Statement [line items]
Deferred tax assets	202	360
Deferred Tax Liabilities Tangible And Intangible Fixed Assets [Member]
Statement [line items]
Deferred tax liabilities	(16,031)	(2,520)
Movements in Deferred Tax Balances [Member]
Statement [line items]
Deferred tax assets	14,415	2,679
Deferred tax liabilities	€ (16,031)	€ (2,520)

Income Taxes - Summary of Unrec

Income Taxes - Summary of Unrecognised Deferred Tax Assets As Follows (Detail) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement [line items]
Tax losses, Tax effects	€ 35,635	€ 24,638
Arrival Group [Member]
Statement [line items]
Deductible temporary differences for which no deferred tax asset is recognised	(3,387)
Unused tax losses [member]
Statement [line items]
Deductible temporary differences for which no deferred tax asset is recognised	162,574	60,009	€ 60,009
Tax losses, Tax effects	32,327	10,224	€ 10,224
Tax losses, Tax effects		€ 24,638
Unused tax losses [member] | Arrival Group [Member]
Statement [line items]
Deductible temporary differences for which no deferred tax asset is recognised	3,387
Tax losses, Tax effects	845
Share options [Member]
Statement [line items]
Tax losses, Tax effects	149
Tangible And Intangible Fixed Assets [Member]
Statement [line items]
Tax losses, Tax effects	1,063
Other temporary differences [member]
Statement [line items]
Tax losses, Tax effects	€ 2,096

Income Taxes - Summary of Compo

Income Taxes - Summary of Components of Income Tax Expense (Benefit) As follows (Detail) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current tax
Current year	€ (2,186)	€ (294)	€ (152)
Other taxes	(431)	(5)	(5)
True up adjustments for taxes for prior years	22,040	7,163
Total current tax income	19,423	6,864	(157)
Deferred tax
True up adjustments for taxes for prior years	954
Relating to origination and reversal of temporary differences	(2,575)	65	1,108
Total deferred tax	(1,621)	65	1,108
Total tax income recognised in consolidated statement of profit or loss and other comprehensive (loss)/income	€ 17,802	€ 6,929	€ 951

Income Taxes - Summary of Tax L

Income Taxes - Summary of Tax Losses Carried Forward As Follows (Details) - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Arrival Group [Member]
Statement [line items]
Deductible temporary differences for which no deferred tax asset is recognised	€ (3,387)
Tax losses Due 2021 to 2037 Period [Member]
Statement [line items]
Deductible temporary differences for which no deferred tax asset is recognised	22,770	€ 7,457	€ 249
Tax losses Due 2021 to 2037 Period [Member] | Arrival Group [Member]
Statement [line items]
Deductible temporary differences for which no deferred tax asset is recognised	3,387
Tax losses Due Infinite period [Member]
Statement [line items]
Deductible temporary differences for which no deferred tax asset is recognised	€ 139,804	€ 133,988	€ 59,760

Income Taxes - Summary of Recon

Income Taxes - Summary of Reconciliation of Effective Tax Rate (Detail) - EUR (€) € in Thousands	2 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Taxes [Line Items]
Loss before tax from continuing operations		€ (101,017)	€ (55,025)	€ (31,140)
Tax rate using the Company's domestic tax rate		(25,194)	(13,723)	(8,100)
Effect of tax rates in foreign jurisdictions		4,212	3,283	2,375
Non-deductible expenses		2,727	172	280
Tax exempt income/tax incentives		(855)	(16)	(52)
Current year losses for which no deferred tax asset is recognised		23,696	10,511	5,597
True up adjustments for taxes for prior years		(22,994)	(7,162)	(1,056)
Other domestic taxes		606	6	5
Total tax income recognised in profit or loss		€ (17,802)	€ (6,929)	€ (951)
Loss before tax from continuing operations, in percent		24.94%	24.94%	26.01%
Effect of tax rates in foreign jurisdictions, in percent		(4.17%)	(5.96%)	(7.36%)
Non-deductible expenses, in percent		(2.70%)	(0.31%)	(0.90%)
Tax exempt income/tax incentives, in percent		0.85%	0.03%	0.17%
Current year losses for which no deferred tax asset is recognised, in percent		(23.46%)	(19.11%)	(17.97%)
True up adjustments for taxes for prior years, in percent		22.76%	13.02%	3.39%
Other domestic taxes, in percent		(0.60%)	(0.01%)	(0.02%)
Income tax income, in percent		17.62%	12.59%
Arrival Group [Member]
Income Taxes [Line Items]
Loss before tax from continuing operations	€ (3,387)
Tax rate using the Company's domestic tax rate	(845)
Current year losses for which no deferred tax asset is recognised	€ 845
Loss before tax from continuing operations, in percent	24.94%
Current year losses for which no deferred tax asset is recognised, in percent	(24.94%)

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2020	Apr. 01, 2023	Apr. 25, 2019
Statement [line items]
Tax rate due Period	Mar. 31, 2023
UK [member]
Statement [line items]
Corporate tax rate	19.00%
Bottom of range [member] | Luxembourg [member]]
Statement [line items]
Corporate tax rate			24.94%
Top of range [member] | Luxembourg [member]]
Statement [line items]
Corporate tax rate			26.01%
Top of range [member] | Changes in tax rates or tax laws enacted or announced [member] | UK [member]
Statement [line items]
Corporate tax rate		25.00%

Non-Financial Risk Management (

Non-Financial Risk Management (Detail)	12 Months Ended
	Dec. 31, 2020
Text Block [abstract]
Number of orders received	10,000
Time Period Of Contract To Be Delivered	5 years

Trade And Other Payables - Summ

Trade And Other Payables - Summary of Trade And Other Payables (Detail) - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019
Statements [Line Items]
Trade payables	€ 9,144	€ 9,131
Accrued expenses	8,815	7,165
Other Payables And Accrued Expenses	16,206	4,514
Total	34,165	€ 20,810
Arrival Group [Member]
Statements [Line Items]
Other Payables And Accrued Expenses	(3,385)
Total	€ 3,385

Financial Instruments - Fair _3

Financial Instruments - Fair Values - Summary of Fair Values of Financial Assets And Financial Liabilities As Follows (Detail) - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019
Loan receivables [Member] | Level 3 [Member]
Disclosure Of Financial Assets And Financial Liabilities [Line Items]
Financial Assets at amortised cost	€ 29,998
Total	29,998
Fair Value	30,231
Cash guarantees and deposits [Member] | Level 1 [Member]
Disclosure Of Financial Assets And Financial Liabilities [Line Items]
Financial Assets at amortised cost	9,364	€ 6,963
Total	€ 9,364	€ 6,963

Income And Expenses - Summary o

Income And Expenses - Summary of Other Income Expense (Detail) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Other operating income [Abstract]
Government grants	€ 1,023	€ 1,865	€ 1,138
Gain on disposal of fixed assets	6	546
Gain from modification of lease	1,036	64
Other income	297	108	29
Total other income	2,362	2,583	1,167
Other operating expense [Abstract]
Impairment of receivable	(6)
Loss on disposal of fixed assets	(5)	(5)
Other charges	(6,842)	(6,906)	(13)
Total other expenses	€ (6,853)	€ (6,911)	€ (13)

Income And Expenses - Summary_2

Income And Expenses - Summary of Expenses By Nature (Detail) - EUR (€)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement [line items]
Depreciation	€ (9,652,000)	€ (4,770,000)	€ (2,120,000)
Impairment of intangible assets and receivable	(391,000)	(4,972,000)	(9,347,000)
Wages and salaries	(31,754,000)	(14,260,000)	(8,466,000)
Consultancy fees	(11,667,000)	(4,547,000)	(1,718,000)
Contractors	(1,535,000)	(2,241,000)	(1,316,000)
Rent and property utilities	(4,691,000)	(2,820,000)	(2,666,000)
Legal fees	(5,362,000)	(633,000)	(311,000)
Employee share scheme	(9,326,000)	0	0
Raw material and consumables	(9,683,000)	(5,107,000)	(1,640,000)
Marketing	(1,676,000)	(535,000)	(938,000)
Recruitment fees	(1,183,000)	(1,447,000)	(597,000)
Travel expenses and accommodation	(1,003,000)	(2,365,000)	(1,137,000)
Fees payable to the Company's auditors for the 2020 audit of the Company's annual accounts	(1,224,000)	0	0
Fees payable to the Company's auditors for the prior year audits of the Company's annual accounts	(1,809,000)	(393,000)	(111,000)
Fees payable to the Company's auditors for other services	(272,000)	(154,000)	(90,000)
Other	(2,243,000)	(3,269,000)	(1,878,000)
Total cost of administrative, research and development and impairment expenses	€ (93,471,000)	€ (47,513,000)	€ (32,335,000)

Income And Expenses - Additiona

Income And Expenses - Additional Information (Detail) - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income And Expenses [Abstract]
Capitalised cost of depreciation	€ 3,429,000	€ 1,043,000	€ 279,000

Financial Income_Expense - Summ

Financial Income/Expense - Summary of Finance Income Expense Transaction (Detail) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Finance income
Foreign exchange differences	€ 0	€ 0	€ 18
Interest receivable	2,703	51	122
Total finance income	2,703	51	140
Finance cost
Bank charges	(298)	(160)	(72)
Interest payable	(149)	0	(27)
Interest on leases	(4,733)	(2,574)	0
Foreign exchange differences	(578)	(501)	0
Total finance cost	€ (5,758)	€ (3,235)	€ (99)

Share Based Payments - Summary

Share Based Payments - Summary of Weighted Average Exercise Prices And Contractual Life of The Share Options (Detail)	12 Months Ended
	Dec. 31, 2020$ / shares
Restricted Share Plan [Member]
Statement Of Share Based Payment Arrangements [Line Items]
Weighted average fair value at grant date	$ 2.62
Share price of Preferred A shares based on transactions occurred at the same time of the issues of the scheme	3.41
Exercise price	$ 0
Contractual life of the options	0 years
Share Option Plan [Member]
Statement Of Share Based Payment Arrangements [Line Items]
Weighted average fair value at grant date	$ 1.93
Share price of Preferred A shares based on transactions occurred at the same time of the issues of the scheme	3.41
Exercise price	$ 3.41
Contractual life of the options	10 years

Share Based Payments - Summar_2

Share Based Payments - Summary of Number of The Share Options (Detail) - Share Option Plan [Member] shares in Thousands	12 Months Ended
	Dec. 31, 2020shares
Statement Of Share Based Payment Arrangements [Line Items]
Outstanding at the beginning of the year	0
Granted during the year	26,890
Exercised during the year	0
Expired during the year	0
Forfeited during the year	0
Outstanding at the end of the year	26,890
Exercisable at the end of the year	0

Share Based Payments - Summar_3

Share Based Payments - Summary of Inclusions of Model Inputs For Options Granted (Detail)	12 Months Ended
	Dec. 31, 2020
Initial Public Offering [Member]
Statement Of Share Based Payment Arrangements [Line Items]
Valuation date	Oct. 2, 2020
Risk free rate	0.00%
Dividend yield
Expected volatility	146.00%
Expected exit event	Jan. 31, 2021
Scenario weighting	75.00%
Delayed Exit [Member]
Statement Of Share Based Payment Arrangements [Line Items]
Valuation date	Oct. 2, 2020
Risk free rate	0.00%
Dividend yield
Expected volatility	102.00%
Expected exit event	Jan. 1, 2022
Scenario weighting	25.00%

Share Based Payments - Addition

Share Based Payments - Additional Information (Detail)	Oct. 26, 2020shares€ / shares	Oct. 08, 2020	Dec. 31, 2020EUR (€)	Dec. 31, 2019EUR (€)	Dec. 31, 2018EUR (€)
Statement Of Share Based Payment Arrangements [Line Items]
Description of terms of options granted, share based payment arrangement		As per the share plan, participants are granted options which have the following vesting conditions: a) 50% of share options granted vest on the first anniversary of the participant’s start date, b) 25% of the share options vest subject to a production rate milestone and c) 25% of the share options vest subject to a contribution milestone. All the above conditions are subject to an exit event, which is the asset or share sale of the Group or an initial public offering (“IPO”). In addition, the employee participating in the share option scheme must be an employee of the Group at the time a vesting condition has been met. The latter condition, it is not applicable for non-employee participants.
Intrinsic value of options based on the vesting conditions			€ 24,747,000
Share-based Payment Arrangement, Expensed and Capitalized, Amount			24,747,000
Expense from share-based payment transactions with employees			9,326,000	€ 0	€ 0
Share-based Payment Arrangement, Amount Capitalized			15,421,000
Arrival Share Option Plan 2020 [Member]
Statement Of Share Based Payment Arrangements [Line Items]
Granted during the year | shares	26,899,662
Exercise price | € / shares	€ 3.40909
Assessed fair value at the grant date of awards			€ 51,804,000
Arrival Share Option Plan 2020 [Member] | First Anniversary Of The Participant Start Date [Member]
Statement Of Share Based Payment Arrangements [Line Items]
Share options granted vest, percentage		50.00%
Arrival Share Option Plan 2020 [Member] | Production Rate Milestone [Member]
Statement Of Share Based Payment Arrangements [Line Items]
Share options granted vest, percentage		25.00%
Arrival Share Option Plan 2020 [Member] | Contribution Mile Stone [Member]
Statement Of Share Based Payment Arrangements [Line Items]
Share options granted vest, percentage		25.00%

Related Party Transactions - Su

Related Party Transactions - Summary of Transactions Between Related Parties (Detail) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of transactions between related parties [line items]
Wages and salaries	€ 31,754	€ 14,260	€ 8,466
Social contributions	7,812	3,443	1,781
Arrival Management Systems LLC [Member]
Disclosure of transactions between related parties [line items]
Related party Transactions for the year	(10)	(256)
Amount payable, related party transactions	0	(53)
Arrival Solutions LLC [Member]
Disclosure of transactions between related parties [line items]
Related party Transactions for the year	4	(30)
Amount payable, related party transactions	5	(26)
Shishkov Rodion [Member]
Disclosure of transactions between related parties [line items]
Related party Transactions for the year	0	62	123
Amount payable, related party transactions	0	64
Studio S.à r.l. [Member]
Disclosure of transactions between related parties [line items]
Related party Transactions for the year	0	0	(1,690)
K Cybernation S.à r.l. [Member]
Disclosure of transactions between related parties [line items]
Related party Transactions for the year	0	(3,297)
Amount payable, related party transactions	0	0
K Robolife S.à r.l.
Disclosure of transactions between related parties [line items]
Related party Transactions for the year	(66)	(65,649)
Amount payable, related party transactions	0	0
Kinetik S.à r.l [Member]
Disclosure of transactions between related parties [line items]
Related party Transactions for the year	(23,959)	(150,909)	(44,553)
Amount payable, related party transactions	0	0
Denis Sverdlov [Member]
Disclosure of transactions between related parties [line items]
Related party Transactions for the year			195
Charge Cars Ltd [Member]
Disclosure of transactions between related parties [line items]
Related party Transactions for the year	294	(39)	165
Amount payable, related party transactions	0	0
Smart Space LLC [Member]
Disclosure of transactions between related parties [line items]
Related party Transactions for the year		(386)	(152)
Smekalka LLC [Member]
Disclosure of transactions between related parties [line items]
Related party Transactions for the year	(299)	0
Amount payable, related party transactions	0	0
Experiment X Ltd [Member]
Disclosure of transactions between related parties [line items]
Related party Transactions for the year			(66)
Happy Electron Ltd [Member]
Disclosure of transactions between related parties [line items]
Related party Transactions for the year			(127)
Cybernation Ltd [Member]
Disclosure of transactions between related parties [line items]
Related party Transactions for the year			(60)
Remy Robotics LLC [Member]
Disclosure of transactions between related parties [line items]
Related party Transactions for the year	31	36
Amount payable, related party transactions	0	0
Key management personnel of entity or parent [member]
Disclosure of transactions between related parties [line items]
Wages and salaries	2,937	2,903	2,924
Social contributions	334	561	372
Other benefits	48	1	0
Other earnings	0	34	0
RSP loans	13,700	0	0
SOP expense	€ 3,141	€ 0	€ 0

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - EUR (€)	Dec. 31, 2020	Dec. 31, 2019
Disclosure of transactions between related parties [line items]
Share premium	€ 288,539,000	€ 139,752,000
Kinetik [Member]
Disclosure of transactions between related parties [line items]
Financial assets, at fair value	12,500,000
Loans received	11,402,000
Share premium	€ 57,000

Related Party Transactions - _2

Related Party Transactions - Summary of Information About Loans Executives (Detail) € in Thousands	Dec. 31, 2020EUR (€)
Loans To The Executives [Line Items]
Nominal Amount	€ 6,100
Fair Value of December 31, (see note10A.iii)	4,244
Tim Holbrow
Loans To The Executives [Line Items]
Nominal Amount	600
Fair Value of December 31, (see note10A.iii)	426
Avinash Rugoobur
Loans To The Executives [Line Items]
Nominal Amount	3,000
Fair Value of December 31, (see note10A.iii)	2,130
Mike Ableson
Loans To The Executives [Line Items]
Nominal Amount	1,500
Fair Value of December 31, (see note10A.iii)	978
Daniel Chin
Loans To The Executives [Line Items]
Nominal Amount	1,000
Fair Value of December 31, (see note10A.iii)	€ 710

Personnel - Summary of Cost And

Personnel - Summary of Cost And Development Projects Which Are Capitalized As A Personal Cost (Detail) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of Total Cost of Employees as a Personal Cost [Line Items]
Total staff cost before any capitalization	€ 109,969	€ 43,685	€ 19,210
UNITED KINGDOM
Disclosure of Total Cost of Employees as a Personal Cost [Line Items]
Total staff cost before any capitalization	65,178	27,601	12,562
RUSSIAN FEDERATION
Disclosure of Total Cost of Employees as a Personal Cost [Line Items]
Total staff cost before any capitalization	31,255	11,265	6,586
UNITED STATES
Disclosure of Total Cost of Employees as a Personal Cost [Line Items]
Total staff cost before any capitalization	4,987	2,597	0
GERMANY
Disclosure of Total Cost of Employees as a Personal Cost [Line Items]
Total staff cost before any capitalization	4,589	2,165	62
ISRAEL
Disclosure of Total Cost of Employees as a Personal Cost [Line Items]
Total staff cost before any capitalization	1,793	57	0
Other Countries [Member]
Disclosure of Total Cost of Employees as a Personal Cost [Line Items]
Total staff cost before any capitalization	€ 2,167	€ 0	€ 0

Personnel - Additional Informat

Personnel - Additional Information (Detail) - EUR (€)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of Total Cost of Employees as a Personal Cost [Line Items]
Total staff cost before any capitalization	€ 109,969,000	€ 43,685,000	€ 19,210,000
Development programs expense, capitalised	17,947,000	11,149,000	6,219,000
Social Security Cost	7,812,000	3,443,000	1,781,000
Capitalised development expenditure [member]
Disclosure of Total Cost of Employees as a Personal Cost [Line Items]
Total staff cost before any capitalization	68,889,000	€ 29,425,000	€ 10,744,000
Development programs expense, capitalised	€ 15,421,000

Administration And Legal Expe_3

Administration And Legal Expenses - Disclosure Details Of Other Operating Expenses (Detail) - EUR (€) € in Thousands	2 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statements [Line Items]
Total other expenses		€ (2,243)	€ (3,269)	€ (1,878)
Arrival Group [Member]
Statements [Line Items]
Other	€ (53)
Audit fees	(49)
Legal fees	(3,285)
Total other expenses	€ (3,387)

Ultimate Parent Undertaking - A

Ultimate Parent Undertaking - Additional Information (Detail) - Arrival Luxembourg € in Thousands	2 Months Ended
	Dec. 31, 2020EUR (€)
Disclosure of subsidiaries [line items]
Revenue from rendering of services, related party transactions	€ 53,000
Amounts payable, related party transactions	€ 53,000

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail)	Mar. 24, 2021EUR (€)€ / sharesshares	Mar. 23, 2021EUR (€)€ / sharesshares	Feb. 01, 2021EUR (€)	Jan. 04, 2021EUR (€)shares	Mar. 31, 2021EUR (€)	Dec. 31, 2020EUR (€)	Dec. 31, 2020EUR (€)	Dec. 31, 2019EUR (€)	Mar. 24, 2021$ / shares	Oct. 27, 2020€ / shares
Subsequent Events [Line Items]
Increase in share capital of group							€ 160,557,000	€ 250,909,000
Share premium						€ 288,539,000	288,539,000	139,752,000
Notional amount						6,100,000	6,100,000
Arrival Group [Member]
Subsequent Events [Line Items]
Increase in share capital of group						30,000
Nominal value shares | € / shares										€ 0.10
Prepayment Agreement [Member]
Subsequent Events [Line Items]
Explanation of details of guarantees, significant transactions			The assembly line will be determined by the Group and LG guarantees the supply of 82,000,000 cells to the Group
Amount payable in-return to build an assembly line for manufacturing of cells			€ 25,830,000
Computershare Trustees (Jersey) Limited [Member]
Subsequent Events [Line Items]
Number of shares contributed in exchange for shares issued | shares		12,491,723
Arrival Luxembourg S a r l [Member]
Subsequent Events [Line Items]
Nominal value shares | € / shares		€ 0.25
Arrival Luxembourg S a r l [Member] | Top of range [member]
Subsequent Events [Line Items]
Cancellation of share capital		€ 239,091,338.50
Arrival Luxembourg S a r l [Member] | Bottom of range [member]
Subsequent Events [Line Items]
Cancellation of share capital		€ 12,000
Ordinary shares [member] | Arrival Group [Member]
Subsequent Events [Line Items]
Increase in share capital of group						€ 30,000
Ordinary shares [member] | Arrival Luxembourg S a r l [Member]
Subsequent Events [Line Items]
Cancellation of share capital shares | shares		956,365,354
Preference shares [member]
Subsequent Events [Line Items]
Increase in share capital of group							€ 11,770,000	€ 7,333,000
Preference shares [member] | WCPF II Holdings Limited [Member]
Subsequent Events [Line Items]
Share premium				€ 49,181,361.44
Preferred Exchange New Shares [Member]
Subsequent Events [Line Items]
Increase in share capital of group				4,265,114.40
Share premium				256,234,886.99
Preferred Exchange New Shares [Member] | Arrival Group [Member]
Subsequent Events [Line Items]
Increase in share capital of group				4,265,114.40
Share premium				256,234,886.99
Preferred Exchange New Shares [Member] | Hyundai Motor Company [Member]
Subsequent Events [Line Items]
Share premium				78,690,176.26
Preferred Exchange New Shares [Member] | Hyundai Motor Company [Member] | Arrival Group [Member]
Subsequent Events [Line Items]
Share premium				78,690,176.26
Preferred Exchange New Shares [Member] | Kia Motors Corporation [Member]
Subsequent Events [Line Items]
Share premium				€ 19,672,543.21
Number of shares contributed in exchange for shares issued | shares				5,866,668
Preferred Exchange New Shares [Member] | Kia Motors Corporation [Member] | Arrival Group [Member]
Subsequent Events [Line Items]
Share premium				€ 19,672,543.21
Number of shares contributed in exchange for shares issued | shares				5,866,668
Preferred Exchange New Shares [Member] | United Parcel Service General Services Co [Member]
Subsequent Events [Line Items]
Share premium				€ 9,836,272
Preferred Exchange New Shares [Member] | United Parcel Service General Services Co [Member] | Arrival Group [Member]
Subsequent Events [Line Items]
Share premium				9,836,272
Preferred Exchange New Shares [Member] | WCPF II Holdings Limited [Member] | Arrival Group [Member]
Subsequent Events [Line Items]
Share premium				49,181,361.44
Preferred Exchange New Shares [Member] | Blackrock Funds [Member]
Subsequent Events [Line Items]
Share premium				€ 98,854,534.08
Preferred Exchange New Shares [Member] | Ordinary shares [member] | Hyundai Motor Company [Member]
Subsequent Events [Line Items]
Number of shares issued | shares				13,098,240
Preferred Exchange New Shares [Member] | Ordinary shares [member] | Hyundai Motor Company [Member] | Arrival Group [Member]
Subsequent Events [Line Items]
Number of shares issued | shares				13,098,240
Preferred Exchange New Shares [Member] | Ordinary shares [member] | Kia Motors Corporation [Member]
Subsequent Events [Line Items]
Number of shares issued | shares				3,274,560
Preferred Exchange New Shares [Member] | Ordinary shares [member] | Kia Motors Corporation [Member] | Arrival Group [Member]
Subsequent Events [Line Items]
Number of shares issued | shares				3,274,560
Preferred Exchange New Shares [Member] | Ordinary shares [member] | United Parcel Service General Services Co [Member]
Subsequent Events [Line Items]
Number of shares issued | shares				1,637,280
Preferred Exchange New Shares [Member] | Ordinary shares [member] | United Parcel Service General Services Co [Member] | Arrival Group [Member]
Subsequent Events [Line Items]
Number of shares issued | shares				1,637,280
Preferred Exchange New Shares [Member] | Ordinary shares [member] | WCPF II Holdings Limited [Member]
Subsequent Events [Line Items]
Number of shares issued | shares				8,186,400
Preferred Exchange New Shares [Member] | Ordinary shares [member] | WCPF II Holdings Limited [Member] | Arrival Group [Member]
Subsequent Events [Line Items]
Number of shares issued | shares				8,186,400
Preferred Exchange New Shares [Member] | Ordinary shares [member] | Arrival Luxembourg S a r l [Member]
Subsequent Events [Line Items]
Number of shares outstanding | shares		76,413,354
Preferred Exchange New Shares [Member] | Ordinary shares [member] | Blackrock Funds [Member]
Subsequent Events [Line Items]
Number of shares issued | shares				16,454,664
Preferred Exchange New Shares [Member] | Ordinary shares [member] | Blackrock Funds [Member] | Arrival Group [Member]
Subsequent Events [Line Items]
Number of shares issued | shares				16,454,664
Preferred Exchange New Shares [Member] | Preference shares [member]
Subsequent Events [Line Items]
Share premium				€ 260,500,001.39
Preferred Exchange New Shares [Member] | Preference shares [member] | Arrival Group [Member]
Subsequent Events [Line Items]
Number of shares contributed in exchange for shares issued | shares				2,933,334
Preferred Exchange New Shares [Member] | Preference shares [member] | Hyundai Motor Company [Member]
Subsequent Events [Line Items]
Number of shares contributed in exchange for shares issued | shares				23,466,673
Preferred Exchange New Shares [Member] | Preference shares [member] | Hyundai Motor Company [Member] | Arrival Group [Member]
Subsequent Events [Line Items]
Number of shares contributed in exchange for shares issued | shares				23,466,673
Preferred Exchange New Shares [Member] | Preference shares [member] | United Parcel Service General Services Co [Member]
Subsequent Events [Line Items]
Number of shares contributed in exchange for shares issued | shares				2,933,334
Preferred Exchange New Shares [Member] | Preference shares [member] | WCPF II Holdings Limited [Member]
Subsequent Events [Line Items]
Number of shares contributed in exchange for shares issued | shares				14,666,671
Preferred Exchange New Shares [Member] | Preference shares [member] | WCPF II Holdings Limited [Member] | Arrival Group [Member]
Subsequent Events [Line Items]
Number of shares contributed in exchange for shares issued | shares				14,666,671
Preferred Exchange New Shares [Member] | Preference shares [member] | Arrival Luxembourg S a r l [Member]
Subsequent Events [Line Items]
Number of shares outstanding | shares		76,413,354
Preferred Exchange New Shares [Member] | Preference shares [member] | Blackrock Funds [Member]
Subsequent Events [Line Items]
Number of shares contributed in exchange for shares issued | shares				29,480,008
Preferred Exchange New Shares [Member] | Preference shares [member] | Blackrock Funds [Member] | Arrival Group [Member]
Subsequent Events [Line Items]
Number of shares contributed in exchange for shares issued | shares				29,480,008
Ordinary Exchange New Shares [Member]
Subsequent Events [Line Items]
Increase in share capital of group		€ 49,118,385.60
Number of shares issued | shares		37,508,277
Total amount of contribution		€ 4,140,469,156.20
Ordinary Exchange New Shares [Member] | Arrival Group [Member]
Subsequent Events [Line Items]
Increase in share capital of group				€ 49,118,385.60
Share premium		4,033,273,470.30
Total amount of contribution		4,140,469,156.20
Ordinary Exchange New Shares [Member] | Kinetik S.à r.l [Member]
Subsequent Events [Line Items]
Share premium		€ 3,858,887,655.60
Number of shares issued | shares		463,275,682
Ordinary Exchange New Shares [Member] | Kinetik S.à r.l [Member] | Arrival Group [Member]
Subsequent Events [Line Items]
Share premium		€ 3,858,887,655.60
Number of shares issued | shares		463,275,682
Ordinary Exchange New Shares [Member] | Arrival S.à r.l. [Member]
Subsequent Events [Line Items]
Share premium		€ 174,385,814.70
Number of shares issued | shares		20,935,750
Ordinary Exchange New Shares [Member] | Arrival S.à r.l. [Member] | Arrival Group [Member]
Subsequent Events [Line Items]
Share premium		€ 174,385,814.70
Number of shares issued | shares		20,935,750
Ordinary Exchange New Shares [Member] | Computershare Trustees (Jersey) Limited [Member]
Subsequent Events [Line Items]
Share premium		€ 58,077,300.30
Number of shares issued | shares		6,972,424
Ordinary Exchange New Shares [Member] | Computershare Trustees (Jersey) Limited [Member] | Arrival Group [Member]
Subsequent Events [Line Items]
Share premium		€ 58,077,300.30
Number of shares issued | shares		6,972,424
Ordinary Exchange New Shares [Member] | Arrival Luxembourg S a r l [Member]
Subsequent Events [Line Items]
Cancellation of share capital		€ 30,000
Cancellation of share capital shares | shares		300,000
Ordinary Exchange New Shares [Member] | Arrival Luxembourg S a r l [Member] | Arrival Group [Member]
Subsequent Events [Line Items]
Cancellation of share capital	€ 30,000
Cancellation of share capital shares | shares		300,000
Number of shares contributed in exchange for shares issued | shares		37,508,277
Ordinary Exchange New Shares [Member] | Ordinary shares [member]
Subsequent Events [Line Items]
Share premium		€ 4,033,273,470.30
Ordinary Exchange New Shares [Member] | Ordinary shares [member] | Kinetik S.à r.l [Member]
Subsequent Events [Line Items]
Number of shares contributed in exchange for shares issued | shares		830,000,000
Ordinary Exchange New Shares [Member] | Ordinary shares [member] | Kinetik S.à r.l [Member] | Arrival Group [Member]
Subsequent Events [Line Items]
Number of shares contributed in exchange for shares issued | shares		830,000,000
Merger New Shares [Member]
Subsequent Events [Line Items]
Number of shares issued | shares	72,322,267
Nominal value shares | € / shares	€ 0.10
Total amount of contribution	€ 609,645,679.84
Increase in the share capital	7,232,226.70
Balance of the share capital after increase	€ 60,615,726.70
Merger New Shares [Member] | Arrival Group [Member]
Subsequent Events [Line Items]
Number of shares issued | shares	72,322,267
Nominal value shares | € / shares	€ 0.10
Total amount of contribution	€ 609,645,679.84
Increase in the share capital	7,232,226.70
Balance of the share capital after increase		€ 60,615,726.70
Merger New Shares [Member] | CIIG Merger Corp [Member]
Subsequent Events [Line Items]
Share premium	602,413,453.14
Nominal value shares | $ / shares									$ 0.0001
Merger New Shares [Member] | Class A Common Stock [Member] | CIIG Merger Corp [Member]
Subsequent Events [Line Items]
Share premium	€ 602,413,453.14
Merger New Shares [Member] | Class A Common Stock [Member] | CIIG Merger Corp [Member] | Arrival Group [Member]
Subsequent Events [Line Items]
Nominal value shares | $ / shares									$ 0.0001
Non adjusting events
Subsequent Events [Line Items]
Lock Up Period Stock Options					6 months
Notional amount					€ 6,100,000,000