XML 83 R76.htm IDEA: XBRL DOCUMENT
v3.25.3

Net Income (Loss) per Share - Schedule of securities were not included in the computation of diluted shares outstanding (Detail) - shares | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024
PubCo Warrants - Public and Private |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |
Number of securities | 43,848,750 | 43,848,750
PubCo Class E Common Stock - Earnouts Units |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |
Number of securities | 0 | 1,075,761
BT OpCo Exchangeable Non-Controlling Interest |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |
Number of securities | 0 | 44,093,024
BT OpCo Earnouts Units |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |
Number of securities | 15,000,000 | 15,000,000
2023 Incentive Plan RSU awards |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |
Number of securities | 2,545,871 | 1,624,687

X
- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=btm_PublicAndPrivateWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=btm_ClassECommonStockEarnoutsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=btm_ExchangeableNciMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=btm_EarnoutUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=btm_TwoThousandTwentyThreeIncentivePlanRSUMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |