XML 98 R74.htm IDEA: XBRL DOCUMENT
v3.23.3

Earnouts - Additional Information (Detail) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 $ / shares shares | Sep. 30, 2023 $ / shares shares
Earn Out Shares [Line Items] |  |
Number of trading days for determining the share price | 10 days |
Number of consecutive trading days for determining share price | 20 days |
Class E Common Stock [Member] |  |
Earn Out Shares [Line Items] |  |
Earnout shares issuable | shares | 15,000,000 | 15,000,000
Common stock, par or stated value per share | $ 0.0001 | $ 0.0001
Class E One Common Stock [Member] |  |
Earn Out Shares [Line Items] |  |
Common stock, par or stated value per share | 0.0001 | 0.0001
Share price | 12 | $ 12
Number of trading days for determining the share price |  | 10 days
Number of consecutive trading days for determining share price |  | 20 days
Class E Two Common Stock [Member] |  |
Earn Out Shares [Line Items] |  |
Share price | 14 | $ 14
Number of trading days for determining the share price |  | 10 days
Number of consecutive trading days for determining share price |  | 20 days
Class E Three Common Stock [Member] |  |
Earn Out Shares [Line Items] |  |
Share price | 16 | $ 16
Number of trading days for determining the share price |  | 10 days
Number of consecutive trading days for determining share price |  | 20 days
Class A Common Stock [Member] |  |
Earn Out Shares [Line Items] |  |
Common stock, par or stated value per share | 0.0001 | $ 0.0001
Share price | $ 4.34 | $ 4.34
Sponsor [Member] | Class E Common Stock [Member] |  |
Earn Out Shares [Line Items] |  |
Earnout shares issuable | shares | 1,075,061 | 1,075,061
Sponsor [Member] | Class E One Common Stock [Member] |  |
Earn Out Shares [Line Items] |  |
Earnout shares issuable | shares | 358,587 | 358,587
Sponsor [Member] | Class E Two Common Stock [Member] |  |
Earn Out Shares [Line Items] |  |
Earnout shares issuable | shares | 358,587 | 358,587
Sponsor [Member] | Class E Three Common Stock [Member] |  |
Earn Out Shares [Line Items] |  |
Earnout shares issuable | shares | 358,587 | 358,587
Sponsor [Member] | Class A Common Stock [Member] |  |
Earn Out Shares [Line Items] |  |
Earnout shares issuable | shares | 1,075,761 | 1,075,761

X
- Definition Earn out shares line item. + References No definition available. + Details
Name: | btm_EarnOutSharesLineItems
Namespace Prefix: | btm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Earnout shares issuable. + References No definition available. + Details
Name: | btm_EarnoutSharesIssuable
Namespace Prefix: | btm_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of consecutive trading days for determining share price. + References No definition available. + Details
Name: | btm_NumberOfConsecutiveTradingDaysForDeterminingSharePrice
Namespace Prefix: | btm_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of trading days for determining the share price. + References No definition available. + Details
Name: | btm_NumberOfTradingDaysForDeterminingTheSharePrice
Namespace Prefix: | btm_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Face amount or stated value per share of common stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_CommonStockParOrStatedValuePerShare
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Price of a single share of a number of saleable stocks of a company. + References No definition available. + Details
Name: | us-gaap_SharePrice
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=btm_ClassECommonStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=btm_ClassEOneCommonStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=btm_ClassETwoCommonStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=btm_ClassEThreeCommonStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=btm_SponsorMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |