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Assumed Other Expenses - Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services assumed from other insurers as a result of reinsurance arrangements.

No definition available.

Name:	bhl_AssumedOtherExpenses
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Data Type:	xbrli:monetaryItemType
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Fees, commissions and other revenues assumed from other insurers as a result of reinsurance arrangements.

No definition available.

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Premiums Earned [Abstract]

No definition available.

Name:	bhl_PremiumsEarnedAbstract
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Data Type:	xbrli:stringItemType
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Amount of earned premiums assumed from other entities.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 605
-Section 50
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-Publisher FASB
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-Publisher FASB
-Name Accounting Standards Codification
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No definition available.

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No definition available.

Name:	us-gaap_OtherExpensesAbstract
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Data Type:	xbrli:stringItemType
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Period Type:	duration

No definition available.

Name:	us-gaap_OtherIncomeAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
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Amount of policy benefits and costs incurred for policies assumed.

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