XML 110 R94.htm IDEA: XBRL DOCUMENT
v3.25.3

Preferred Units & Preferred Stock - Schedule Of Convertible Preferred Units (Details) - USD ($) $ / shares in Units, $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Preferred Units [Line Items] |  |
Units Authorized (in shares) |  | 39,865,000
Units Issued (in shares) |  | 39,842,000
Units Outstanding (in shares) |  | 39,842,000
Liquidation Preference |  | $ 646,925
Carrying Value, Net of Issuance Cost |  | $ 534,368
Series A-1 |  |
Preferred Units [Line Items] |  |
Units Authorized (in shares) |  | 14,756,000
Units Issued (in shares) |  | 14,756,000
Units Outstanding (in shares) |  | 14,756,000
Original Price per Unit (in dollars per share) |  | $ 0.71
Liquidation Preference |  | $ 21,078
Carrying Value, Net of Issuance Cost |  | $ 10,539
Series A-2 |  |
Preferred Units [Line Items] |  |
Units Authorized (in shares) |  | 738,000
Units Issued (in shares) |  | 738,000
Units Outstanding (in shares) |  | 738,000
Original Price per Unit (in dollars per share) |  | $ 0.19
Liquidation Preference |  | $ 284
Carrying Value, Net of Issuance Cost |  | $ 142
Series A-3 |  |
Preferred Units [Line Items] |  |
Units Authorized (in shares) |  | 970,000
Units Issued (in shares) |  | 970,000
Units Outstanding (in shares) |  | 970,000
Original Price per Unit (in dollars per share) |  | $ 9.72
Liquidation Preference |  | $ 18,860
Carrying Value, Net of Issuance Cost |  | $ 9,430
Series A-4 |  |
Preferred Units [Line Items] |  |
Units Authorized (in shares) |  | 5,676,000
Units Issued (in shares) |  | 5,676,000
Units Outstanding (in shares) |  | 5,676,000
Original Price per Unit (in dollars per share) |  | $ 7.90
Liquidation Preference |  | $ 89,700
Carrying Value, Net of Issuance Cost |  | $ 44,850
Series A-5 |  |
Preferred Units [Line Items] |  |
Units Authorized (in shares) |  | 1,486,000
Units Issued (in shares) |  | 1,486,000
Units Outstanding (in shares) |  | 1,486,000
Original Price per Unit (in dollars per share) |  | $ 8.35
Liquidation Preference |  | $ 24,800
Carrying Value, Net of Issuance Cost |  | $ 12,400
Series A-6 |  |
Preferred Units [Line Items] |  |
Units Authorized (in shares) |  | 4,091,000
Units Issued (in shares) |  | 4,091,000
Units Outstanding (in shares) |  | 4,091,000
Original Price per Unit (in dollars per share) |  | $ 3.12
Liquidation Preference |  | $ 25,500
Carrying Value, Net of Issuance Cost |  | $ 12,750
Series A-7 |  |
Preferred Units [Line Items] |  |
Units Authorized (in shares) |  | 3,238,000
Units Issued (in shares) |  | 3,238,000
Units Outstanding (in shares) |  | 3,238,000
Original Price per Unit (in dollars per share) |  | $ 6.61
Liquidation Preference |  | $ 42,800
Carrying Value, Net of Issuance Cost |  | $ 21,400
Series B |  |
Preferred Units [Line Items] |  |
Units Authorized (in shares) |  | 8,910,000
Units Issued (in shares) | 0 | 8,887,101
Units Outstanding (in shares) | 0 | 8,887,101
Original Price per Unit (in dollars per share) |  | $ 47.70
Liquidation Preference |  | $ 423,903
Carrying Value, Net of Issuance Cost |  | $ 422,857

X
- Definition Preferred Units, Liquidation Preference, Value + References No definition available. + Details
Name: | gemi_PreferredUnitsLiquidationPreferenceValue
Namespace Prefix: | gemi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Preferred Units, Price Per Share + References No definition available. + Details
Name: | gemi_PreferredUnitsPricePerShare
Namespace Prefix: | gemi_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of preferred units authorized to be issued. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 5 -Subparagraph (SAB Topic 4.F) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480008/505-10-S99-5 + Details
Name: | us-gaap_PreferredUnitsAuthorized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of preferred units issued. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 5 -Subparagraph (SAB Topic 4.F) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480008/505-10-S99-5 + Details
Name: | us-gaap_PreferredUnitsIssued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

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

X
- Definition The number of preferred units outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 5 -Subparagraph (SAB Topic 4.F) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480008/505-10-S99-5 + Details
Name: | us-gaap_PreferredUnitsOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The amount of the preferred partners' ownership interests. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 5 -Subparagraph (SAB Topic 4.F) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480008/505-10-S99-5 + Details
Name: | us-gaap_PreferredUnitsPreferredPartnersCapitalAccounts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_PreferredUnitsByNameAxis=gemi_SeriesA1PreferredUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PreferredUnitsByNameAxis=gemi_SeriesA2PreferredUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PreferredUnitsByNameAxis=gemi_SeriesA3PreferredUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PreferredUnitsByNameAxis=gemi_SeriesA4PreferredUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PreferredUnitsByNameAxis=gemi_SeriesA5PreferredUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PreferredUnitsByNameAxis=gemi_SeriesA6PreferredUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PreferredUnitsByNameAxis=gemi_SeriesA7PreferredUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PreferredUnitsByNameAxis=gemi_SeriesBPreferredUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |