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Subsequent Events (Details) $ in Millions	Jul. 01, 2021 USD ($)
Subsequent Event | Variable Interest Entity, Primary Beneficiary | Watford Holdings Ltd
Subsequent Event [Line Items]
Net gain on deconsolidation	$ 65

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- Definition

Amount of gain (loss) from deconsolidation of a variable interest entity pursuant to a merger agreement, net.

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	duration

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ConsolidatedEntitiesAxis=us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
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Balance Type:
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