XML 52 R42.htm IDEA: XBRL DOCUMENT
v3.25.2

Investment Partnerships - Carrying Value (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Equity Method Investments and Joint Ventures [Abstract] |  |
Carrying value of investment partnerships | $ 202,893 | $ 201,727
Deferred tax liability related to investment partnerships | (30,030) | (17,255)
Carrying value of investment partnerships net of deferred taxes | $ 172,863 | $ 184,472

X
- References No definition available. + Details
Name: | bh_CarryingValueOfInvestmentPartnerships
Namespace Prefix: | bh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Carrying Value of Investment Partnerships Net of Deferred Taxes + References No definition available. + Details
Name: | bh_CarryingValueOfInvestmentPartnershipsNetOfDeferredTaxes
Namespace Prefix: | bh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | bh_DeferredTaxLiabilityRelatedToInvestmentPartnerships
Namespace Prefix: | bh_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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