Policyholder account balance changes in fair value of market risk benefits.

No definition available.

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Policyholder account balance changes in fair value resulting from changes in instrument specific credit risk during the period.

No definition available.

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Data Type:	xbrli:monetaryItemType
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Policyholder account balance changes other than through net income.

No definition available.

Name:	ck0001070304_PolicyholderAccountBalanceChangesOtherThanThroughNetIncome
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Data Type:	xbrli:monetaryItemType
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Policyholder account balance changes through net income.

No definition available.

Name:	ck0001070304_PolicyholderAccountBalanceChangesThroughNetIncome
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Data Type:	xbrli:monetaryItemType
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Policyholder account balance changes through oci.

No definition available.

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Data Type:	xbrli:monetaryItemType
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Policyholder account balance effect of changes in fair value of investment assets.

No definition available.

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Namespace Prefix:	ck0001070304_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Policyholder account balance fee income.

No definition available.

Name:	ck0001070304_PolicyholderAccountBalanceFeeIncome
Namespace Prefix:	ck0001070304_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Policyholder funds excluding market risk.

No definition available.

Name:	ck0001070304_PolicyholderFundsExcludingMarketRisk
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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Amount, before effect of reinsurance and after accumulated increase (decrease) in instrument-specific credit risk, of contract or contract feature in long-duration contract issued by insurance entity that both protects contract holder from other-than-nominal capital market risk and exposes insurance entity to other-than-nominal capital market risk.

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Amount of cash outflow to policyholder account balance from benefit payment.

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Amount of increase (decrease) in liability for policyholder account balance from change, classified as other.

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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.

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Amount of decrease in liability for policyholder account balance from contract redemption and withdrawal of funds.

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Amount due to policyholder. Includes, but is not limited to, unpaid policy dividend, retrospective refund, and undistributed earnings on participating business. Excludes future policy benefit and claim expense.

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Period Type:	instant

Amount of transfer to (from) liability for policyholder account balance (to) from liability for separate account.

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