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Data Type:	num:perShareItemType
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Number of warrants or rights issued during the period.

No definition available.

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Carrying value as of the balance sheet date of outstanding underwriting commissions payable initially due after one year or beyond the operating cycle if longer, excluding current portion.

No definition available.

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Fair market value as a percentage of the net assets held in the Trust Account (excluding the deferred underwriting commissions and taxes payable on the income earned on the Trust Account) at the time of the agreement to enter into the initial Business Combination.

No definition available.

Name:	arrw_FairMarketValueAsPercentageOfNetAssetsHeldInTrustAccountIncludedInInitialBusinessCombination
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Data Type:	num:percentItemType
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Interest received on the Trust Account that can be used to pay dissolution expenses if a Business Combination is not completed with the Combination Period.

No definition available.

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Net tangible asset threshold for redeeming Public Shares.

No definition available.

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Number of operating businesses that must be included in initial Business Combination.

No definition available.

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Amount of other costs incurred in connection with the offering of Units in Initial Public Offering and Private Placement of Warrants.

No definition available.

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Data Type:	xbrli:monetaryItemType
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Percentage of Public Shares that can be redeemed without the prior consent of the Company.

No definition available.

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Percentage of Public Shares that would not be redeemed if a Business Combination is not completed within the Initial Combination Period.

No definition available.

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Period of time from closing of Initial Public Offering to complete Business Combination, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

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Data Type:	xbrli:durationItemType
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Period of time to redeem Public Shares if Business Combination is not completed within the Initial Combination Period, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

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Data Type:	xbrli:durationItemType
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Post-transaction ownership percentage of the outstanding voting securities of the target business sufficient for it not to be required to register as an investment company under the Investment Company Act of 1940.

No definition available.

Name:	arrw_PostTransactionOwnershipPercentageOfTheTargetBusiness
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Amount of costs incurred for underwriting fees in connection with the offering of Units in Initial Public Offering and Private Placement of Warrants.

No definition available.

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Number of new units issued during the period. Each unit consists of one share of Class A Common Stock and one-half of one redeemable Warrant.

No definition available.

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Specific incremental costs directly attributable to a proposed or actual offering of securities which are deferred at the end of the reporting period.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.8)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 340
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 5.A)
-URI http://asc.fasb.org/extlink&oid=27011391&loc=d3e105025-122735

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The cash inflow associated with the amount received from entity's first offering of stock to the public.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585

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The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement.

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- References

No definition available.

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Data Type:	xbrli:stringItemType
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Per share or per unit amount of equity securities issued.

No definition available.

Name:	us-gaap_SharesIssuedPricePerShare
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

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Balance Type:
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