Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

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- Definition

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.

+ References

No definition available.

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- Definition

Financial instruments issued by insurance entities (surplus notes) that are includable in surplus for statutory accounting purposes as prescribed or permitted by state laws and regulations that are liabilities of the issuer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 470
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6486086&loc=d3e24387-158525

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- Definition

Percentage of loss reserve development retained

+ References

No definition available.

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- Definition

Proceeds from Tribune common stock tendered in connecttion with Tribune's leveraged buyout.

+ References

No definition available.

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- Details

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Commitments and Contingencies (Legal Contingencies) (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Jun. 30, 2007	Dec. 31, 2015	Dec. 31, 2014
Esurance [Member]
Loss Contingencies [Line Items]
Percentage of loss reserve development retained			90.00%
OneBeacon \| Pending Litigation [Member] \| Tribune Company Litigation [Member]
Legal Contingency [Abstract]
Proceeds From Tribune Common Stock	$ 32.0
OneTitle [Member]
Legal Contingency [Abstract]
Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest		20.00%
Surplus notes		$ 10.0
Sirius Group \| Pending Litigation [Member] \| Tribune Company Litigation [Member]
Legal Contingency [Abstract]
Proceeds From Tribune Common Stock	$ 6.1