XML 50 R43.htm IDEA: XBRL DOCUMENT
v3.25.2

Organization and Nature of Operations - Summary of Immaterial Restatement of Prior Period Financial Statements (Details) - USD ($) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2025 | Jun. 30, 2024
OPERATING ACTIVITIES |  |
Proceeds from sale of rental equipment - rent-to-sell | $ 44.8 | $ 63.1
Net cash used in operating activities | (3.4) | (24.2)
INVESTING ACTIVITIES |  |
Proceeds from sale of rental equipment - rent-to-rent | 4.9 | 3.2
Net cash used in investing activities | $ (8.4) | (34.2)
As Previously Reported |  |
OPERATING ACTIVITIES |  |
Proceeds from sale of rental equipment - rent-to-sell |  | 66.3
Net cash used in operating activities |  | (21.0)
INVESTING ACTIVITIES |  |
Proceeds from sale of rental equipment - rent-to-rent |  | 0.0
Net cash used in investing activities |  | (37.4)
Adjustment |  |
OPERATING ACTIVITIES |  |
Proceeds from sale of rental equipment - rent-to-sell |  | (3.2)
Net cash used in operating activities |  | (3.2)
INVESTING ACTIVITIES |  |
Proceeds from sale of rental equipment - rent-to-rent |  | 3.2
Net cash used in investing activities |  | $ 3.2

X
- Definition Proceeds from sale of long term rental equipment. + References No definition available. + Details
Name: | altg_ProceedsFromSaleOfLongTermRentalEquipment
Namespace Prefix: | altg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Proceeds from sale of rental equipment. + References No definition available. + Details
Name: | altg_ProceedsFromSaleOfRentalEquipment
Namespace Prefix: | altg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 24 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-24 + Details
Name: | us-gaap_NetCashProvidedByUsedInInvestingActivities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 24 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-24 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 25 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-25 + Details
Name: | us-gaap_NetCashProvidedByUsedInOperatingActivities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_RestatementAxis=srt_ScenarioPreviouslyReportedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RestatementAxis=srt_RestatementAdjustmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |