Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Insurance Reserves

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- Definition

Excess Statutory Capital over Requirement

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- Definition

Funds Withheld Receivable

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- Definition

Letter Of Credit

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- Definition

Letter of Credit Future Quarterly Reductions

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- Definition

Reinsurance Gain Deferred

+ References

No definition available.

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- Definition

ReinsuranceRecissionGainLoss

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- Definition

Reinsurance Rescission Gain (Loss)

+ References

No definition available.

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- Definition

Upfront Arrangement Fees Incurred In Connection With Credit Facility

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No definition available.

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- Definition

Amount of assets acquired at the acquisition date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472

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- Definition

Amount of accrued obligation to policyholders that relates to insured events for long-duration contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 40

-Section 25

-Paragraph 11

-URI http://asc.fasb.org/extlink&oid=28366191&loc=d3e13145-158430

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.13(a)(1))

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- Definition

Cash payments made for reinsurance during the current period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 25

-Subparagraph (g)

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- Definition

The total liability as of the balance sheet date of amounts due policy holders, excluding future policy benefits and claims, including unpaid policy dividends, retrospective refunds, and undistributed earnings on participating business.

+ 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 210.7-03.13,14)

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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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Reinsurance - Additional Information (Detail) - USD ($) $ in Millions		12 Months Ended
	Jun. 17, 2013	Sep. 30, 2015	Sep. 30, 2014	Oct. 31, 2014	Oct. 01, 2012
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Contractholder funds		$ 17,769.8	$ 16,463.5
Future policy benefits		4,096.8	3,655.5
Raven Re
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Excess Statutory Capital over Requirement		21.9
Bankers Life Insurance Company [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Payments for Reinsurance		153.0	153.0
Front Street RE (Cayman) Ltd. [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Funds Withheld Receivable		146.5
Future policy benefits		135.1
Wilton Reassurance Company [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Payments for Reinsurance	$ 6.4
Reinsurance Rescission Gain (Loss)	1.9
Nomura
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Reserve financing facility		226.3			$ 295.0
Upfront structuring fee		2.8
Letter of Credit Future Quarterly Reductions		6.3
Wilton Re Recission [Member] \| Wilton Reassurance Company [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
ReinsuranceRecissionGainLoss	$ 18.0
reinsurance recission [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Pre-tax gain on reinsurance transactions deferred		$ 11.1	$ 14.3
Ability Re [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets				$ 368.0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Insurance Reserves				$ 346.9