The acquisition price to be paid in addition to the tangible book value of the acquiree at the closing date.

No definition available.

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- Definition

The recovery percentage of the entity's surety bond claim losses that its joint venture partner is obligated to pay.

+ References

No definition available.

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- Definition

The amount of total assets using prescribed or permitted statutory accounting practices (rather than GAAP, if different) of the state or country.

+ References

No definition available.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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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

The amount of statutory capital and surplus (stockholders' equity) as of the balance sheet date using prescribed or permitted statutory accounting practices (rather than GAAP, if different) of the state or country.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(23)(c))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 505
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6486098&loc=d3e24708-158529

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Contingencies and Commitments - Narrative (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2017	Sep. 30, 2016	Dec. 31, 2016
Insurance Group [Member]
Contingencies and Commitments [Line Items]
Reimbursement rate from joint venture partner of Company's surety bond claim losses	50.00%
Berkadia Commercial Mortgage (investee) [Member]
Contingencies and Commitments [Line Items]
Voting interest in investee	50.00%
Berkadia Commercial Mortgage (investee) [Member] \| Commercial Paper [Member]
Contingencies and Commitments [Line Items]
Maximum outstanding balance of commercial paper borrowings	$ 1,500,000,000
Leucadia National Corporation (venture partner) [Member] \| Berkadia Commercial Mortgage (investee) [Member]
Contingencies and Commitments [Line Items]
Voting interest in investee	50.00%
NICO [Member] \| Purchase Agreement [Member] \| Medical Liability Mutual Insurance Company [Member]
Contingencies and Commitments [Line Items]
Statutory assets			$ 5,500,000,000
Statutory policyholders' surplus			$ 2,100,000,000
Acquisition price in addition to tangible book value of acquiree		$ 100,000,000