Short Duration Contracts (Details)	12 Months Ended
Dec. 31, 2021 USD ($)
Mortgage
Claims Development [Line Items]
Large claim size threshold	$ 250,000

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.

No definition available.

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