Expected Business Acquisition, Enterprise Value Assigned

No definition available.

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- Definition

Expected number of shares of equity interests issued or issuable to acquire entity.

+ References

No definition available.

+ Details

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- Definition

Expected value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity.

+ References

No definition available.

+ Details

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- Definition

Expected percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

No definition available.

+ Details

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- Definition

Expected amount of liabilities incurred by the acquirer as part of consideration transferred in a business combination.

+ References

No definition available.

+ Details

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- Definition

Expected total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

+ References

No definition available.

+ Details

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- Definition

Expected aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.

+ References

No definition available.

+ Details

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- Definition

The expected cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

No definition available.

+ Details

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- Definition

Loss Contingency, Threshold For Losses To Be Considered Catastrophic

+ References

No definition available.

+ Details

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- Definition

Amount of the fee for available but unused credit capacity under the credit 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

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

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- Definition

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349

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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.

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- Details

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Subsequent Event (Narrative) (Details) - USD ($)		3 Months Ended
Subsequent Event (Narrative) (Details) - USD ($)	Oct. 17, 2017	Sep. 30, 2017	Nov. 03, 2017
Subsequent Event [Line Items]
Threshold for losses categorized as catastrophic		$ 5,000,000.0
Subsequent Event \| TWG Holdings
Subsequent Event [Line Items]
Consideration transferred	$ 372,400,000
Shares retained in aggregate	16,000,000
Shares issued in merger	16,000,000
Value of shares issued in merger	$ 1,500,000,000.0
Equity value assigned to TWG	1,900,000,000.0
Enterprise value assigned to TWG	2,500,000,000.0
Debt incurred	$ 591,300,000
Expected Business Acquisition, Percentage of Voting Interests Acquired	77.00%
Subsequent Event \| TWG Holdings \| TWG Holdings
Subsequent Event [Line Items]
Expected Business Acquisition, Percentage of Voting Interests Acquired	23.00%
Subsequent Event \| Line of Credit \| Unsecured bridge loan facility \| Morgan Stanley
Subsequent Event [Line Items]
Maximum borrowing capacity	$ 1,000,000,000.0
Subsequent Event \| Line of Credit \| Unsecured debt \| Morgan Stanley
Subsequent Event [Line Items]
Maximum borrowing capacity	350,000,000.0
Line of Credit Facility, Commitment Fee Amount	$ 70,000,000.0
California \| Subsequent Event \| Wildfires \| Minimum
Subsequent Event [Line Items]
Pre-tax loss estimation			$ 6,000,000.0
California \| Subsequent Event \| Wildfires \| Maximum
Subsequent Event [Line Items]
Pre-tax loss estimation			$ 8,000,000.0