Fidelity & Guaranty Life 10-Q 6 Aug 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Jun. 30, 2014	Aug. 04, 2014
Document Documentand Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Jun-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'
Trading Symbol	'FGL	'
Entity Registrant Name	'Fidelity & Guaranty Life	'
Entity Central Index Key	'0001585064	'
Current Fiscal Year End Date	'--09-30	'
Entity Filer Category	'Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	58,436,821

CONDENSED_CONSOLIDATED_BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	Jun. 30, 2014	Sep. 30, 2013
In Millions, unless otherwise specified
Investments:	'	'
Fixed maturities securities, available-for-sale, at fair value	$17,007.40	$15,541.40
Equity securities, available-for-sale, at fair value	698.4	271.1
Derivative investments	324.7	221.8
Other invested assets	340.2	188.2
Total investments	18,370.70	16,222.50
Related party loans	124.1	119
Cash and cash equivalents	818.3	1,204.30
Accrued investment income	157.2	159.3
Reinsurance recoverable	3,675.40	3,728.60
Intangibles, net	496.2	563.8
Deferred tax assets	95.3	226.4
Other assets	128	205.2
Total assets	23,865.20	22,429.10
LIABILITIES AND SHAREHOLDERS' EQUITY	'	'
Contractholder funds	16,217.90	15,248.20
Future policy benefits	3,516.10	3,556.80
Liability for policy and contract claims	1,339.30	1,407.70
Funds withheld for reinsurance liabilities	61	51.5
Long-term debt	300	300
Other liabilities	728	700
Total liabilities	22,162.30	21,264.20
Common stock ($.01 par value, 500,000,000 shares authorized, 58,437,412 issued and outstanding at June 30, 2014; 47,000,000 shares issued and outstanding at September 30, 2013)	0.6	0
Additional paid-in capital	701.4	527.1
Retained earnings	598.3	524.9
Accumulated other comprehensive income	402.6	112.9
Total shareholders' equity	1,702.90	1,164.90
Total liabilities and shareholders' equity	$23,865.20	$22,429.10

CONDENSED_CONSOLIDATED_BALANCE1

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Jun. 30, 2014	Sep. 30, 2013
Statement of Financial Position [Abstract]	'	'
Common stock, par value (in dollars per share)	$0.01	$0.01
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	58,437,412	47,000,000
Common stock, shares outstanding	58,437,412	47,000,000

CONDENSED_CONSOLIDATED_STATEME

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	3 Months Ended			9 Months Ended
In Millions, except Share data, unless otherwise specified	Jun. 30, 2014		Jun. 30, 2013	Jun. 30, 2014		Jun. 30, 2013
Revenues:	'		'	'		'
Premiums	$13.10		$19	$41.40		$46.90
Net investment income	191.2		184.6	558.9		522.8
Net investment gains	145		58.3	266.7		411.5
Insurance and investment product fees and other	18.6		16.1	51.3		44.6
Total revenues	367.9		278	918.3		1,025.80
Operating costs and expenses:	'		'	'		'
Benefits and other changes in policy reserves	242.5		107.2	638.3		431.7
Acquisition and operating expenses, net of deferrals	22.9		25.6	80.9		76
Amortization of intangibles	14.7		64.7	48.9		163.1
Total benefits and expenses	280.1		197.5	768.1		670.8
Operating income	87.8		80.5	150.2		355
Interest expense	-5.7		-5.9	-16.9		-5.9
Income before income taxes	82.1		74.6	133.3		349.1
Income tax expense	25.6		21.4	9.3		112.1
Net income	56.5		53.2	124		237
Net income per common share:	'		'	'		'
Basic (in dollars per share)	$0.97		$1.13	$2.25		$5.04
Diluted (in dollars per share)	$0.97		$1.13	$2.24		$5.04
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]	'		'	'		'
Weighted-average common shares outstanding, Basic	58,270,822		47,000,000	55,194,513		47,000,000
Weighted Average Number of Shares Outstanding, Diluted	58,474,938		47,000,000	55,329,523		47,000,000
Cash dividend per common share	$0.07	[1]	'	$0.13	[1]	'
Total other-than-temporary impairments	-0.6		-0.7	-0.6		-1.6
Portion of other-than-temporary impairments included in other comprehensive income	0		0	0		0
Net other-than-temporary impairments	-0.6		-0.7	-0.6		-1.6
Gains on derivative instruments	73.5		19.9	176.9		126.6
Other investment gains	72.1		39.1	90.4		286.5
Dividend Paid to Harbinger	'		'	$50.60		$93.70
[1]	NM - Not meaningful under prior capital structure. Cash dividends per common share for the three and nine months ended June 30, 2014 exclude the special dividend paid to Harbinger Group Inc. of $43.0 (see Note 9 - Equity).

CONDENSED_CONSOLIDATED_STATEME1

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statement of Comprehensive Income [Abstract]	'	'	'	'
Net income	$56.50	$53.20	$124	$237
Unrealized investment gains (losses):	'	'	'	'
Changes in unrealized investment gains (losses) before reclassification adjustment	353.1	-559.4	726.7	-379.1
Net reclassification adjustment for (gains) included in net investment gains	-71.5	-35.3	-89.8	-281.8
Changes in unrealized investment gains (losses) after reclassification adjustment	281.6	-594.7	636.9	-660.9
Adjustments to intangible assets	-86.1	210.7	-191.2	260.9
Changes in deferred income tax asset/liability	-68.4	135.5	-156	140.9
Net change to derive comprehensive income (loss) for the period	127.1	-248.5	289.7	-259.1
Comprehensive income (loss), net of tax	$183.60	($195.30)	$413.70	($22.10)

CONDENSED_CONSOLIDATED_STATEME2

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY Statement (USD $)	Total	Common Stock	Contributed Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
In Millions, unless otherwise specified
Beginning Balance at Sep. 30, 2012	$1,290.80	$0	$415.60	$440.70	$434.50
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'
Capital contributions from Harbinger Group Inc.	110.6	'	110.6	'	'
Dividends	-93.7	'	'	-93.7	'
Net income	237	'	'	237	'
Unrealized investment losses, net	-259.1	'	'	'	-259.1
Stock compensation	0	'	0	'	'
Ending Balance at Jun. 30, 2013	1,285.60	0	526.2	584	175.4
Beginning Balance at Sep. 30, 2013	1,164.90	0	527.1	524.9	112.9
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'
Dividends	-50.6	'	'	-50.6	'
Stock Split	0	0.5	-0.5	'	'
Proceeds from issuance of common stock, net of transaction fees	172.6	0.1	172.5	'	'
Net income	124	'	'	124	'
Unrealized investment losses, net	289.7	'	'	'	289.7
Stock compensation	2.3	'	2.3	'	'
Ending Balance at Jun. 30, 2014	$1,702.90	$0.60	$701.40	$598.30	$402.60

CONDENSED_CONSOLIDATED_STATEME3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	9 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Cash flows from operating activities:	'	'
Net income	$124	$237
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation of properties	3.8	2.9
Amortization of intangibles	48.9	163.1
Stock-based compensation	11.5	3.7
Amortization of debt issuance costs	2.6	0.8
Deferred income taxes	-24.9	166.9
Interest credited/index credits and other changes to contractholder account balances	540.8	323.6
Amortization of fixed maturity discounts and premiums	-29.6	24.4
Net recognized (gains) on investments and derivatives	-266.7	-411.5
Charges assessed to contractholders for mortality and administration	-33.4	-23.9
Deferred policy acquisition costs	-172.5	-109.2
Changes in operating assets and liabilities:	'	'
Accrued investment income	2.1	33.1
Reinsurance recoverable	-12.9	-6.6
Future policy benefits	-40.7	-38.6
Funds withheld from reinsurers	-90.4	0
Collateral posted	80.1	0
Liability for policy and contract claims	9.5	-24.2
Other assets and other liabilities	23.2	-103.5
Net cash provided by operating activities	175.4	238
Cash flows from investing activities:	'	'
Related party loans	-5	-205.2
Capital expenditures	-6.7	-3.1
Net cash (used in) investing activities	-1,220.30	-347.6
Cash flows from financing activities:	'	'
Capital funding	0	110.6
Proceeds from issuance of common stock, net of transaction fees	175.5	0
Dividends paid	-50.6	-93.7
Proceeds from issuance of new debt	'	300
Debt issuance costs	'	10.2
Contractholder account deposits	1,772.80	1,078.40
Contractholder account withdrawals	-1,238.80	-1,327.10
Net cash provided by financing activities	658.9	58
Change in cash and cash equivalents	-386	-51.6
Cash and cash equivalents at beginning of period	1,204.30	1,054.60
Cash and cash equivalents at end of period	818.3	1,003
Interest paid	19.1	5.9
Income taxes paid	24.4	2.7
Available-for-sale Securities	'	'
Cash flows from investing activities:	'	'
Proceeds from investments sold, matured or repaid:	4,352.50	6,990.70
Cost of investments acquired:	-5,173.80	-7,180.60
Equity Securities	'	'
Cash flows from investing activities:	'	'
Proceeds from investments sold, matured or repaid:	49.7	57.8
Cost of investments acquired:	-454.1	-112.1
Derivative and other	'	'
Cash flows from investing activities:	'	'
Proceeds from investments sold, matured or repaid:	358.5	217.4
Cost of investments acquired:	($341.40)	($112.50)

Basis_of_Presentation_and_Natu

Basis of Presentation and Nature of Business	9 Months Ended
	Jun. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Basis of Presentation and Nature of Business	'
	Basis of Presentation and Nature of Business
	Fidelity & Guaranty Life (formerly, Harbinger F&G, LLC (“HFG”)) (“FGL” and, collectively with its subsidiaries, the “Company”) is a subsidiary of Harbinger Group Inc. (“HGI”). HGI is a diversified holding company focused on obtaining controlling equity stakes in companies that operate across a diversified set of industries. FGL and HGI’s shares of common stock trade on the New York Stock Exchange (“NYSE”) under the symbols “FGL” and “HRG,” respectively. In January of 2014, HGI transferred HGI’s ownership interest in FGL common shares to FS Holdco II, Ltd. ("FS Holdco") which is a direct wholly-owned subsidiary of HGI. HGI indirectly held 47,000,000 shares of FGL's outstanding common stock, representing an 80.4% interest at June 30, 2014.
	FGL’s primary business is the sale of individual life insurance products and annuities through independent agents, managing general agents, and specialty brokerage firms and in selected institutional markets. FGL’s principal products are deferred annuities (including fixed indexed annuity (“FIA”) contracts), immediate annuities and life insurance products. FGL markets products through its wholly-owned insurance subsidiaries, Fidelity & Guaranty Life Insurance Company (“FGL Insurance”) and Fidelity & Guaranty Life Insurance Company of New York (“FGL NY Insurance”), which together are licensed in all fifty states and the District of Columbia.
	Dollar amounts in the accompanying footnotes are presented in millions, unless otherwise noted.
	On August 9, 2013, the Company distributed its ownership interests in its wholly-owned subsidiaries, HGI Real Estate, LLC. and FS Holdco to HGI and HGI's subsidiaries. Beginning on August 9, 2013 with the distribution of FS Holdco, the Company’s financials reflected the 10% reinsurance agreement, whereby FGL cedes 10% of its in-force annuity block not already reinsured on a funds withheld basis to Front Street Re (Cayman) Ltd. (“FSRCI”), a subsidiary of FS Holdco. Accordingly, the three and nine months ended June 30, 2013 include net (loss) and net earnings of $(7.3) and $10.1, respectively from HGI Real Estate, LLC and FS Holdco operations.
	Basis of Presentation
	The accompanying unaudited Condensed Consolidated Financial Statements of the Company included herein have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). The financial statements reflect all adjustments that are, in the opinion of management, necessary for a fair statement of such information. All such adjustments are of a normal recurring nature. Although the Company believes that the disclosures are adequate to make the information presented not misleading, certain information and footnote disclosures, including a description of significant accounting policies normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”), have been condensed or omitted pursuant to such rules and regulations. These interim financial statements should be read in conjunction with the Company’s audited consolidated financial statements and notes thereto included in the Company’s Registration Statement on Form S-1/A filed with the SEC on December 3, 2013 (the “Form S-1”). The results of operations for the three and nine months ended June 30, 2014 are not necessarily indicative of the results for any subsequent periods or the entire fiscal year ending September 30, 2014.
	The Company’s fiscal quarters end on the last calendar day of the months of December, March, June and September.

Significant_Accounting_Policie

Significant Accounting Policies and Practices	9 Months Ended
	Jun. 30, 2014
Accounting Policies [Abstract]	'
Significant Accounting Policies and Practices	'
	Significant Accounting Policies and Practices
	Principles of Consolidation
	The accompanying unaudited condensed consolidated financial statements include the accounts of FGL and all other entities in which FGL has a controlling financial interest (none of which are variable interest entities). All intercompany accounts and transactions have been eliminated in consolidation.
	Recent Accounting Pronouncements
	Offsetting Assets and Liabilities
	In December 2011, the Financial Accounting Standards Board (“FASB”) issued amended disclosure requirements for offsetting financial assets and financial liabilities to allow investors to better compare financial statements prepared under GAAP with financial statements prepared under International Financial Reporting Standards. The new standards are effective for the Company beginning in the first quarter of its fiscal year ending September 30, 2014. ASU 2011-11 Disclosures about Offsetting Assets and Liabilities - was adopted by the Company effective October 1, 2013. FGL does not offset any of its derivative transactions, including bifurcated embedded derivatives, in its statement of financial position. The Company only enters into purchased equity options and long futures contracts. The Company has not entered into any repurchase and reverse repurchase agreements or securities borrowing and lending transactions. Accordingly, no additional disclosures are required.
	Investments in Qualified Affordable Housing Projects
	In January 2014, the FASB issued amended guidance which allows investors in Low Income Housing Tax Credit (“LIHTC”) programs that meet specified conditions to present the net tax benefits (net of the amortization of the cost of the investment) within income tax expense. The cost of the investments that meet the specified conditions will be amortized in proportion to (and over the same period as) the total expected tax benefits, including the tax credits and other tax benefits, as they are realized on the tax return. The guidance is required to be applied retrospectively, if investors elect the proportional amortization method. However, if investors have existing LIHTC investments accounted for under the effective-yield method at adoption, they may continue to apply that method for those existing investments.  The new standards will become effective for the Company beginning in the first quarter of its fiscal year ending September 30, 2016.  The Company is currently evaluating the impact of this new accounting guidance on its consolidated financial position and results of operations.
	Income Taxes
	FGL and certain of its non-life insurance subsidiaries are included in the consolidated U.S. Federal income tax return of HGI. The Company’s life insurance subsidiaries file a consolidated life insurance income tax return. Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax basis and operating loss and tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The Company assesses the recoverability of its deferred tax assets in each reporting period under the guidance outlined within ASC 740 (“Income Taxes”). The guidance requires an assessment of both positive and negative evidence in determining the realizability of deferred tax assets. A valuation allowance is required to reduce the Company’s deferred tax asset to an amount that is more likely than not to be realized. In determining the net deferred tax asset and valuation allowance, management is required to make judgments and estimates related to projections of future profitability.  These judgments include the following: the timing and extent of the utilization of net operating loss carry-forwards, the reversals of temporary differences, and tax planning strategies.  Because of the change in facts and circumstances described in Note 11 of the Financial Statements, the Company determined that a portion of its existing deferred tax assets that had previously had a valuation allowance placed against them, were now more likely than not recoverable.  Therefore, the Company released a portion of its valuation allowance and recognized a $35.0 gain in the income statement as of March 31, 2014.  After the valuation allowance release, the Company still has a partial valuation allowance of $120.4 against its gross deferred tax assets and liabilities of $215.7 as of June 30, 2014 for other deferred tax assets that are not likely to be realized.  The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. The Company has the ability and intent to recover in a tax-free manner assets (or liabilities) with book/tax basis differences for which no deferred taxes have been provided, in accordance with ASC Topic 740, “Income Taxes”.
	The Company applies the accounting guidance for uncertain tax positions which prescribes a minimum recognition threshold a tax position is required to meet before being recognized in the financial statements. The guidance also provides information on derecognition, measurement, classification, interest and penalties, accounting in interim periods, disclosure and transition. The Company recognizes the effect of income tax positions only if those positions are more likely than not of being sustained. Recognized income tax positions are measured at the largest amount that is greater than 50% likely of being realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. Accrued interest expense and penalties related to uncertain tax positions are recorded in “Income tax benefit” in the Company’s Consolidated Statements of Operations. The Company had no unrecognized tax benefits related to uncertain tax positions as of June 30, 2014 and September 30, 2013.

Significant_Risks_and_Uncertai

Significant Risks and Uncertainties	9 Months Ended
	Jun. 30, 2014
Risks and Uncertainties [Abstract]	'
Significant Risks and Uncertainties	'
	Significant Risks and Uncertainties
	Use of Estimates
	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Due to the inherent uncertainty involved in making estimates, actual results in future periods could differ from those estimates.
	The Company’s significant estimates which are susceptible to change in the near term relate to (1) recognition of deferred tax assets and related valuation allowances, (2) fair value of certain invested assets and derivatives including embedded derivatives (see Notes 4 and 5), (3) other than temporary impairment “OTTI” of available-for-sale investments (see Note 4), (4) amortization of intangibles (see Note 7), (5) estimates of reserves for loss contingencies, including litigation and regulatory reserves (see Note 12) and (6) reserves for future policy benefits and product guarantees.
	Concentrations of Financial Instruments
	As of June 30, 2014 and September 30, 2013, the Company’s most significant investment in one industry, excluding U.S. Government securities, was its investment securities in the banking industry with a fair value of $2,175.4 or 11.8% and $1,892.1 or 11.7%, respectively, of the invested assets portfolio. The Company’s holdings in this industry include investments in 84 different issuers with the top ten investments accounting for 40.0% of the total holdings in this industry. As of June 30, 2014 and September 30, 2013, the Company had investments in 1 issuer and 6 issuers, respectively that exceeded 10% of stockholders equity with a fair value of $189.1 or 1.0% and $788.7 or 4.9% of the invested assets portfolio. Additionally, the Company’s largest concentration in any single issuer as of June 30, 2014 and September 30, 2013 had a fair value of $189.1 and $150.7 or 1.0% and 0.9% of the invested assets portfolio, respectively.
	Concentrations of Financial and Capital Markets Risk
	The Company is exposed to financial and capital markets risk, including changes in interest rates and credit spreads which can have an adverse effect on the Company’s results of operations, financial condition and liquidity. The Company expects to continue to face challenges and uncertainties that could adversely affect its results of operations and financial condition.
	The Company’s exposure to interest rate risk relates primarily to the market price and cash flow variability associated with changes in interest rates. A rise in interest rates, in the absence of other countervailing changes, will decrease the net unrealized gain position of the Company’s investment portfolio and, if long-term interest rates rise dramatically within a six to twelve month time period, certain of the Company’s products may be exposed to disintermediation risk. Disintermediation risk refers to the risk that policyholders may surrender their contracts in a rising interest rate environment, requiring the Company to liquidate assets in an unrealized loss position. This risk is mitigated to some extent by the high level of surrender charge protection provided by the Company’s products.
	Concentration of Reinsurance Risk
	The Company has a significant concentration of reinsurance with Wilton Reassurance Company (“Wilton Re”) and FSRCI (an affiliate) that could have a material impact on the Company’s financial position in the event that Wilton Re or FSRCI fail to perform their obligations under the various reinsurance treaties. Wilton Re is a wholly owned subsidiary of Canada Pension Plan Investment Board ("CPPIB"). CPPIB has a AAA credit rating from Standard & Poor's Ratings Services ("S&P"). As of June 30, 2014, the net amount recoverable from Wilton Re was $1,360.6 and the net amount recoverable from FSRCI is $1,281.7. The Company monitors both the financial condition of individual reinsurers and risk concentration arising from similar geographic regions, activities and economic characteristics of reinsurers to reduce the risk of default by such reinsurers.

Investments

Investments	9 Months Ended
	Jun. 30, 2014
Investments, Debt and Equity Securities [Abstract]	'
Investments	'
	The Company’s debt and equity securities investments have been designated as available-for-sale and are carried at fair value with unrealized gains and losses included in accumulated other comprehensive income (“AOCI”) net of associated adjustments for value of business acquired (“VOBA”), deferred acquisition costs (“DAC”) and deferred income taxes. The Company’s consolidated investments at June 30, 2014 and September 30, 2013 are summarized as follows:
		June 30, 2014
		Amortized Cost			Gross Unrealized Gains			Gross Unrealized Losses			Fair Value			Carrying Value
	Available-for sale securities
	Asset-backed securities	$	1,970.70		$	17.7		$	(10.4	)	$	1,978.00		$	1,978.00
	Commercial mortgage-backed securities	585			26.3			(1.1		)	610.2			610.2
	Corporates	9,765.90			568.5			(36.6		)	10,297.80			10,297.80
	Equities	678.2			25.1			(4.9		)	698.4			698.4
	Hybrids	442			39.8			(0.2		)	481.6			481.6
	Municipals	1,151.00			111.9			(7.2		)	1,255.70			1,255.70
	Agency residential mortgage-backed securities	96.1			3.4			—			99.5			99.5
	Non-agency residential mortgage-backed securities	1,738.60			143.3			(7.8		)	1,874.10			1,874.10
	U.S. Government	404.6			7.2			(1.3		)	410.5			410.5
	Total available-for-sale securities	16,832.10			943.2			(69.5		)	17,705.80			17,705.80
	Derivative investments	165.1			160.6			(1.0		)	324.7			324.7
	Other invested assets	340.2			—			—			340.2			340.2
	Total investments	$	17,337.40		$	1,103.80		$	(70.5	)	$	18,370.70		$	18,370.70
		September 30, 2013
		Amortized Cost			Gross Unrealized Gains			Gross Unrealized Losses			Fair Value			Carrying Value
	Available-for-sale securities
	Asset-backed securities	$	1,745.20		$	24.5		$	(5.2	)	$	1,764.50		$	1,764.50
	Commercial mortgage-backed securities	431.3			24.6			(1.6		)	454.3			454.3
	Corporates	9,314.70			288.7			(185.1		)	9,418.30			9,418.30
	Equities	274.6			6.8			(10.3		)	271.1			271.1
	Hybrids	412.6			19.5			(3.3		)	428.8			428.8
	Municipals	998.8			48.9			(40.7		)	1,007.00			1,007.00
	Agency residential mortgage-backed securities	96.5			2.4			(0.3		)	98.6			98.6
	Non-agency residential mortgage-backed securities	1,304.00			77.5			(13.4		)	1,368.10			1,368.10
	U.S. Government	998.5			7.2			(3.9		)	1,001.80			1,001.80
	Total available-for-sale securities	15,576.20			500.1			(263.8		)	15,812.50			15,812.50
	Derivatives Instruments	141.7			88.5			(8.4		)	221.8			221.8
	Other invested assets	188.2			—			—			188.2			188.2
	Total investments	$	15,906.10		$	588.6		$	(272.2	)	$	16,222.50		$	16,222.50
	Included in AOCI were cumulative unrealized gains of $0.9 and unrealized losses of $1.9 related to the non-credit portion of OTTI on non-agency residential mortgage-backed securities ("RMBS") at June 30, 2014 and September 30, 2013. The non-agency RMBS unrealized gains and losses represent the difference between amortized cost and fair value on securities that were previously impaired. There have been no impairments or write downs on any of the non-agency RMBS purchased in 2014.
	Securities held on deposit with various state regulatory authorities had a fair value of $14,795.6 and $19.4 at June 30, 2014 and September 30, 2013, respectively. The increase in securities held on deposits is due to FGL Insurance's re-domestication from Maryland to Iowa. Under Iowa regulations, insurance companies are required to hold securities on deposit in an amount no less than the Company's legal reserve as prescribed by Iowa regulations.
	In accordance with the Company's Federal Home Loan Bank of Atlanta (“FHLB”) agreements, the investments supporting the funding agreement liabilities are pledged as collateral to secure the FHLB funding agreement liabilities. The collateral investments had a fair value of $593.6 and $604.9 at June 30, 2014 and September 30, 2013, respectively.
	The amortized cost and fair value of fixed maturity available-for-sale securities by contractual maturities, as applicable, are shown below. Actual maturities may differ from contractual maturities because issuers may have the right to call or pre-pay obligations.
		June 30, 2014
		Amortized Cost			Fair Value
	Corporates, Non-structured Hybrids, Municipal and U.S. Government securities:
	Due in one year or less	$	350.2		$	353.3
	Due after one year through five years	2,297.90			2,368.30
	Due after five years through ten years	3,290.40			3,439.30
	Due after ten years	5,748.80			6,204.00
	Subtotal	11,687.30			12,364.90
	Other securities which provide for periodic payments:
	Asset-backed securities	1,970.70			1,978.00
	Commercial mortgage-backed securities	585			610.2
	Structured hybrids	76.2			80.7
	Agency residential mortgage-backed securities	96.1			99.5
	Non-agency residential mortgage-backed securities	1,738.60			1,874.10
	Total fixed maturity available-for-sale securities	$	16,153.90		$	17,007.40
	The Company's available-for-sale securities with unrealized losses are reviewed for potential OTTI. In evaluating whether a decline in value is other-than-temporary, the Company considers several factors including, but not limited to the following: (1) the extent and the duration of the decline; (2) the reasons for the decline in value (credit event, currency or interest-rate related, including general credit spread widening); and (3) the financial condition of and near-term prospects of the issuer. The Company also considers the ability and intent to hold the investment for a period of time to allow for a recovery of value.
	The Company analyzes its ability to recover the amortized cost by comparing the net present value of cash flows expected to be collected with the amortized cost of the security. For mortgage-backed and asset-backed securities, cash flow estimates consider the payment terms of the underlying assets backing a particular security, including interest rate and prepayment assumptions, based on data from widely accepted third-party data sources or internal estimates. In addition to interest rate and prepayment assumptions, cash flow estimates also include other assumptions regarding the underlying collateral including default rates and recoveries, which vary based on the asset type and geographic location, as well as the vintage year of the security. For structured securities, the payment priority within the tranche structure is also considered. For all other debt securities, cash flow estimates are driven by assumptions regarding probability of default and estimates regarding timing and amount of recoveries associated with a default. If the net present value is less than the amortized cost of the investment, an OTTI is recognized. FGL has concluded that the fair values of the securities presented in the table below were not OTTI as of June 30, 2014.
	The fair value and gross unrealized losses of available-for-sale securities, aggregated by investment category, were as follows:
		June 30, 2014
		Less than 12 months						12 months or longer						Total
		Fair Value			Gross Unrealized			Fair Value			Gross Unrealized			Fair Value		Gross Unrealized
					Losses						Losses					Losses
	Available-for-sale securities
	Asset-backed securities	$	474.2		$	(4.7	)	$	306.2		$	(5.7	)	$	780.4	$	(10.4	)
	Commercial mortgage-backed securities	52.8			(0.1		)	0.2			(1.0		)	53		(1.1		)
	Corporates	446.1			(8.0		)	1,009.20			(28.6		)	1,455.30		(36.6		)
Equities	46			(0.2		)	80.6			(4.7		)	126.6		(4.9		)
Hybrids	—			—			12.7			(0.2		)	12.7		(0.2		)
Municipals	15.9			—			213.6			(7.2		)	229.5		(7.2		)
Agency residential mortgage-backed securities	5.5			—			0.7			—			6.2		—
Non-agency residential mortgage-backed securities	177.2			(4.1		)	139.7			(3.7		)	316.9		(7.8		)
U.S. Government	—			—			81.7			(1.3		)	81.7		(1.3		)
Total available-for-sale securities	$	1,217.70		$	(17.1	)	$	1,844.60		$	(52.4	)	$	3,062.30	$	(69.5	)
Total number of available-for-sale securities in an unrealized loss position less than twelve months															178
Total number of available-for-sale securities in an unrealized loss position twelve months or longer															250
Total number of available-for-sale securities in an unrealized loss position															428
	September 30, 2013
	Less than 12 months						12 months or longer						Total
	Fair Value			Gross Unrealized			Fair Value			Gross Unrealized			Fair Value		Gross Unrealized
				Losses						Losses					Losses
Available-for-sale securities
Asset-backed securities	$	329.3		$	(4.5	)	$	81.5		$	(0.7	)	$	410.8	$	(5.2	)
Commercial mortgage-backed securities	26.6			(0.5		)	4.8			(1.1		)	31.4		(1.6		)
Corporates	3,457.20			(175.0		)	186			(10.1		)	3,643.20		(185.1		)
Equities	118.6			(9.2		)	32.2			(1.1		)	150.8		(10.3		)
Hybrids	52			(3.3		)	—			—			52		(3.3		)
Municipals	333.3			(27.3		)	144.4			(13.4		)	477.7		(40.7		)
Agency residential mortgage-backed securities	9.8			(0.2		)	1.1			(0.1		)	10.9		(0.3		)
Non-agency residential mortgage-backed securities	325.2			(12.2		)	69.9			(1.2		)	395.1		(13.4		)
U.S government	753.9			(3.9		)	—			—			753.9		(3.9		)
Total available-for-sale securities	$	5,405.90		$	(236.1	)	$	519.9		$	(27.7	)	$	5,925.80	$	(263.8	)
Total number of available-for-sale securities in an unrealized loss position less than twelve months															588
Total number of available-for-sale securities in an unrealized loss position twelve months or longer															78
Total number of available-for-sale securities in an unrealized loss position															666
At June 30, 2014 and September 30, 2013, securities in an unrealized loss position were primarily concentrated in investment grade corporate debt instruments. Agency residential mortgage-backed securities had positions with an unrealized loss less than $0.1 as of June 30, 2014.
At June 30, 2014 and September 30, 2013, securities with a fair value of $0.2 and $60.9, respectively, were depressed greater than 20% of amortized cost (excluding U.S. Government and U.S. Government sponsored agency securities), which represented less than 1% of the carrying values of all investments.
The following table provides a reconciliation of the beginning and ending balances of the credit loss portion of OTTI on fixed maturity securities held by the Company for the three and nine months ended June 30, 2014 and June 30, 2013, for which a portion of the OTTI was recognized in AOCI:
	Three months ended						Nine months ended
	June 30, 2014			June 30, 2013			June 30, 2014			June 30, 2013
Beginning balance	$	2.7		$	2.7		$	2.7		$	2.7
Increases attributable to credit losses on securities:
Other-than-temporary impairment was previously recognized	—			—			—			—
Other-than-temporary impairment was not previously recognized	—			—			—			—
Ending balance	$	2.7		$	2.7		$	2.7		$	2.7
The Company recognized $0.6 of credit impairment losses in operations during the three and nine months ended June 30, 2014, related to fixed maturity securities and low income housing tax credit securities with an amortized cost of $1.3 and a fair value of $0.7 at June 30, 2014. For the three and nine months ended June 30, 2013, the Company recognized impairment losses in operations totaling $0.7 and $1.6, including credit impairments of $0.5 and $0.8, and change-of-intent impairments of $0.2 and $0.8 related to fixed maturity securities with an amortized cost of $4.0 and a fair value of $2.4 at June 30, 2013.
Details underlying write-downs taken as a result of OTTI that were recognized in net income and included in net realized gains on securities were as follows:
	Three months ended						Nine months ended
	June 30, 2014			June 30, 2013			June 30, 2014			June 30, 2013
OTTI recognized in net income:
Municipals	$	0.3		$	—		$	0.3		$	—
Non-agency residential mortgage-backed securities	—			0.2			—			1.1
Other assets	0.3			0.5			0.3			0.5
Total OTTI	$	0.6		$	0.7		$	0.6		$	1.6
The portion of OTTI recognized in AOCI is disclosed in the Statement of Comprehensive Income.
Net Investment Income
The major sources of “Net investment income” on the accompanying Condensed Consolidated Statements of Operations were as follows:
	Three months ended						Nine months ended
	June 30, 2014			June 30, 2013			June 30, 2014			June 30, 2013
Fixed maturity available-for-sale securities	$	181.5		$	178.2		$	532.2		$	506.5
Equity available-for-sale securities	6.9			3.3			16.2			11.5
Related party loans	1.8			3.9			5.3			9.8
Policy loans	0.2			—			0.5			—
Invested cash and short-term investments	—			0.2			0.2			1.4
Other investments	5.4			4.2			16.6			5.7
Gross investment income	195.8			189.8			571			534.9
Investment expense	(4.6		)	(5.2		)	(12.1		)	(12.1		)
Net investment income	$	191.2		$	184.6		$	558.9		$	522.8
Net investment gains
Details underlying “Net investment gains ” reported on the accompanying Condensed Consolidated Statements of Operations were as follows:
	Three months ended						Nine months ended
	June 30, 2014			June 30, 2013			June 30, 2014			June 30, 2013
Net realized gains on fixed maturity available-for-sale securities	$	72.9		$	33.9		92.6			278.5
Realized gains (losses) on equity securities	0.1			4.8			(1.3		)	6.7
Net realized gains on securities	73			38.7			91.3			285.2
Realized gains on certain derivative instruments	57.2			54			157			99.3
Unrealized gains (losses) on certain derivative instruments	36.6			(34.1		)	73.3			27.3
Change in fair value of reinsurance related embedded derivative	(21.2		)	—			(54.3		)	—
Change in fair value of other embedded derivatives	0.9			—			0.9			—
Realized gains on derivatives and embedded derivatives	73.5			19.9			176.9			126.6
Realized gains (losses) on other invested assets	(1.5		)	(0.3		)	(1.5		)	(0.3		)
Net investment gains	$	145		$	58.3		$	266.7		$	411.5
For the three and nine months ended June 30, 2014, principal repayments, calls, tenders, and proceeds from the sale of fixed maturity available-for-sale securities totaled $1,724.6 and $4,352.5, gross gains on such sales totaled $74.6 and $96.8 and gross losses totaled $1.7 and $4.2, respectively.
For the three and nine months ended June 30, 2013, principal repayments, calls, tenders, and proceeds from the sale of fixed maturity available-for-sale securities, totaled $1,252.4 and $6,990.7, gross gains on such sales totaled $35.0 and $284.0 and gross losses totaled $0.4 and $1.0, respectively.

Derivative_Financial_Instrumen

Derivative Financial Instruments	9 Months Ended
	Jun. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative Financial Instruments	'
	Derivative Financial Instruments
	The carrying amounts of derivative instruments, including derivative instruments embedded in FIA contracts, is as follows:
		June 30, 2014				September 30, 2013
	Assets:
	Derivative investments:
	Call options	$	324.6			$	221.8
	Futures contracts	0.1				—
	Other Invested Assets:
	Other embedded derivatives	12.2				—
	Other Assets:
	Reinsurance related embedded derivative	63.7				118
		$	400.6			$	339.8
	Liabilities:
	Contractholder funds:
	FIA embedded derivative	$	1,864.50			$	1,544.40
	Funds withheld for reinsurance liabilities
	Call options payable to FSRCI	27.1				22.8
	Other liabilities:
	Futures contracts	—				1
		$	1,891.60			$	1,568.20
	The change in fair value of derivative instruments included in the accompanying Condensed Consolidated Statements of Operations is as follows:
		Three months ended								Nine months ended
		June 30, 2014				June 30, 2013				June 30, 2014				June 30, 2013
	Revenues:
	Net investment gains (losses):
	Call options	$	83.2			$	16.5			$	205.3			$	114.1
	Futures contracts	10.6				3.4				25				12.5
	Other embedded derivatives	0.9				—				0.9				—
	Reinsurance related embedded derivative	(21.2		)		—				(54.3		)		—
		$	73.5			$	19.9			$	176.9			$	126.6
	Benefits and other changes in policy reserves:
	FIA embedded derivatives	$	145.8			$	(53.7	)		$	320.1			$	35.1
	Additional Disclosures
	Other Embedded Derivatives
	On June 16, 2014, FGL Insurance invested in a $35.0 fund-linked note issued by Nomura International Funding Pte. Ltd. The note provides for an additional payment at maturity based on the value of an embedded derivative in AnchorPath Dedicated Return Fund (the "AnchorPath Fund") of $11.3 which is based on the actual return of the fund. At maturity of the fund-linked note, FGL Insurance will receive the $35.0 face value of the note plus the value of the embedded derivative in the AnchorPath Fund. The additional payment at maturity is an available-for-sale embedded derivative reported in "Other invested assets".
	FGL Insurance participates in loans to third parties originated by Salus Capital Partners, LLC ("Salus"), an affiliated company indirectly owned by HGI that provides asset-based financing. Three of the participating loans are denominated in Canadian dollars (CAD) which is different from FGL Insurance's functional currency. One of the participating loans includes a provision for reimbursement from the borrower to FGL Insurance for any net foreign exchange losses realized by FGL Insurance under the loan in which FGL Insurance has a participation interest. FGL Insurance's ability to recover the foreign exchange losses under this loan participation is such that the Company has established an embedded derivative equal to FGL Insurance's cumulative net foreign exchange loss on this loan participation. The value of the embedded derivative is reflected in "Other invested assets" as of the balance sheet date with an offset to the Company's Consolidated Statement of Operations. The value of the embedded derivative at each balance sheet date is equal to the cumulative net foreign exchange loss recognized on this loan participation at the balance sheet date.
	Reinsurance Related Embedded Derivatives
	Effective December 31, 2012, FGL Insurance entered into a modified coinsurance arrangement with FSRCI, meaning that funds were withheld by FGL Insurance. This arrangement creates an obligation for FGL Insurance to pay FSRCI at a later date, which resulted in an embedded derivative. This embedded derivative is considered a total return swap with contractual returns that are attributable to the assets and liabilities associated with this reinsurance arrangement. The fair value of the total return swap is based on the change in fair value of the underlying assets held in the funds withheld portfolio. Investment results for the assets that support the coinsurance with funds withheld reinsurance arrangement, including gains and losses from sales, are passed directly to the reinsurer pursuant to contractual terms of the reinsurance arrangement. The reinsurance related embedded derivative is reported in “Other assets” on the Condensed Consolidated Balance Sheets and the related gains or losses are reported in “Net investment gains” on the Condensed Consolidated Statements of Operations.
	Credit Risk
	The Company is exposed to credit loss in the event of nonperformance by its counterparties on the call options and reflects assumptions regarding this nonperformance risk in the fair value of the call options. The nonperformance risk is the net counterparty exposure based on the fair value of the open contracts less collateral held. The Company maintains a policy of requiring all derivative contracts to be governed by an International Swaps and Derivatives Association (“ISDA”) Master Agreement.
	Information regarding the Company’s exposure to credit loss on the call options it holds is presented in the following table:
					June 30, 2014													September 30, 2013
	Counterparty		Credit Rating		Notional				Fair Value				Collateral			Net Credit Risk		Notional		Fair Value		Collateral		Net Credit Risk
			(Fitch/Moody's/S&P) (a)		Amount													Amount
	Merrill Lynch		A/*/A		$	2,150.90			$	100.4			$	57.2		$	43.2	$	2,037.80	$	70.7	$	—	$	70.7
	Deutsche Bank		A+/A2/A		2,639.80				114.9				76.5			38.4		1,620.40		51.7		23		28.7
	Morgan Stanley		*/A3/A		2,116.60				98.1				75.6			22.5		2,264.10		75.7		49		26.7
	Royal Bank of Scotland		A-/*/A-		—				—				—			—		364.3		20.3		—		20.3
	Barclay's Bank		A/A2/A		256				11.2				—			11.2		120.8		3.4		—		3.4
					$	7,163.30			$	324.6			$	209.3		$	115.3	$	6,407.40	$	221.8	$	72	$	149.8
	(a) Credit rating as of June 30, 2014 except for Royal Bank of Scotland which is as of September 30, 2013. An * represents credit ratings that were not available.
	Collateral Agreements
	The Company is required to maintain minimum ratings as a matter of routine practice as part of its over-the-counter derivative agreements on ISDA forms. Under some ISDA agreements, the Company has agreed to maintain certain financial strength ratings. A downgrade below these levels provides the counterparty under the agreement the right to terminate the open derivative contracts between the parties, at which time any amounts payable by the Company or the counterparty would be dependent on the market value of the underlying derivative contracts. The Company’s current rating allows multiple counterparties the right to terminate ISDA agreements. No ISDA agreements have been terminated, although the counterparties have reserved the right to terminate the ISDA agreements at any time. In certain transactions, the Company and the counterparty have entered into a collateral support agreement requiring either party to post collateral when the net exposures exceed pre-determined thresholds. These thresholds vary by counterparty and credit rating. As of June 30, 2014 and September 30, 2013, counterparties posted $209.3 and $72.0 of collateral of which $152.1 and $72.0 is included in "Cash and cash equivalents" with an associated payable for this collateral included in "Other liabilities" on the Condensed Consolidated Balance Sheets. The remaining, $57.2 of non-cash collateral was held by a third-party custodian at June 30, 2014. Accordingly, the maximum amount of loss due to credit risk that the Company would incur if parties to the call options failed completely to perform according to the terms of the contracts was $115.3 and $149.8 at June 30, 2014 and September 30, 2013, respectively.
	The Company held 2,016 and 1,693 futures contracts at June 30, 2014 and September 30, 2013, respectively. The fair value of the futures contracts represents the cumulative unsettled variation margin (open trade equity, net of cash settlements). The Company provides cash collateral to the counterparties for the initial and variation margin on the futures contracts which is included in "Cash and cash equivalents" in the accompanying Condensed Consolidated Balance Sheets. The amount of cash collateral held by the counterparties for such contracts was $8.7 and $5.9 at June 30, 2014 and September 30, 2013, respectively.

Fair_Value_of_Financial_Instru

Fair Value of Financial Instruments	9 Months Ended
	Jun. 30, 2014
Fair Value Disclosures [Abstract]	'
Fair Value of Financial Instruments	'
	Fair Value of Financial Instruments
	The Company’s measurement of fair value is based on assumptions used by market participants in pricing the asset or liability, which may include inherent risk, restrictions on the sale or use of an asset or non-performance risk, which may include the Company’s own credit risk. The Company’s estimate of an exchange price is the price in an orderly transaction between market participants to sell the asset or transfer the liability (“exit price”) in the principal market, or the most advantageous market in the absence of a principal market, for that asset or liability, as opposed to the price that would be paid to acquire the asset or receive a liability (“entry price”). The Company categorizes financial instruments carried at fair value into a three-level fair value hierarchy, based on the priority of inputs to the respective valuation technique. The three-level hierarchy for fair value measurement is defined as follows:
	Level 1 -Values are unadjusted quoted prices for identical assets and liabilities in active markets accessible at the measurement date.
	Level 2 -Inputs include quoted prices for similar assets or liabilities in active markets, quoted prices from those willing to trade in markets that are not active, or other inputs that are observable or can be corroborated by market data for the term of the instrument. Such inputs include market interest rates and volatilities, spreads and yield curves.
	Level 3 - Certain inputs are unobservable (supported by little or no market activity) and significant to the fair value measurement. Unobservable inputs reflect the Company’s best estimate of what hypothetical market participants would use to determine a transaction price for the asset or liability at the reporting date based on the best information available in the circumstances.
	In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, an investment’s level within the fair value hierarchy is based on the lower level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the investment.
	When a determination is made to classify an asset or liability within Level 3 of the fair value hierarchy, the determination is based upon the significance of the unobservable inputs to the overall fair value measurement. Because certain securities trade in less liquid or illiquid markets with limited or no pricing information, the determination of fair value for these securities is inherently more difficult. However, Level 3 fair value investments may include, in addition to the unobservable or Level 3 inputs, observable components, which are components that are actively quoted or can be validated to market-based sources.
	The carrying amounts and estimated fair values of the Company’s financial instruments for which the disclosure of fair values is required, including financial assets and liabilities measured and carried at fair value on a recurring basis, with the exception of investment contracts, a portion of related party loans, portions of other invested assets and debt, are summarized according to the hierarchy previously described, as follows:
		June 30, 2014
		Level 1			Level 2				Level 3			Fair Value			Carrying Amount
	Assets
	Cash and cash equivalents	$	818.3		$	—			$	—		$	818.3		$	818.3
	Fixed maturity securities, available-for-sale:
	Asset-backed securities	—			1,935.20				42.8			1,978.00			1,978.00
	Commercial mortgage-backed securities	—			526.3				83.9			610.2			610.2
	Corporates	—			9,552.60				745.2			10,297.80			10,297.80
	Hybrids	—			481.6				—			481.6			481.6
	Municipals	—			1,219.20				36.5			1,255.70			1,255.70
	Agency residential mortgage-backed securities	—			99.5				—			99.5			99.5
	Non-agency residential mortgage-backed securities	—			1,874.10				—			1,874.10			1,874.10
	U.S. Government	209.4			201.1				—			410.5			410.5
	Equity securities available-for-sale	50			607.4				41			698.4			698.4
	Derivative financial instruments	—			324.7				—			324.7			324.7
	Reinsurance related embedded derivative, included in other assets	—			63.7				—			63.7			63.7
	Related party loans	—			—				124.1			124.1			124.1
	Other invested assets	—			0.6				339.6			340.2			340.2
	Total financial assets at fair value	$	1,077.70		$	16,886.00			$	1,413.10		$	19,376.80		$	19,376.80
	Liabilities
	Derivatives:
	FIA embedded derivatives, included in contractholder funds	$	—		$	—			$	1,864.50		$	1,864.50		$	1,864.50
	Investment contracts, included in contractholder funds	—			—				12,891.50			12,891.50			14,353.40
	Call options payable for FSRCI, included in funds withheld for reinsurance liabilities	—			27.1				—			27.1			27.1
	Debt	—			300				—			300			300
	Total financial liabilities at fair value	$	—		$	327.1			$	14,756.00		$	15,083.10		$	16,545.00
		September 30, 2013
		Level 1			Level 2				Level 3			Fair Value			Carrying Amount
	Assets
	Cash and cash equivalents	$	1,204.30		$	—			$	—		$	1,204.30		$	1,204.30
	Fixed maturity securities, available-for-sale:
	Asset-backed securities	—			1,518.10				246.4			1,764.50			1,764.50
	Commercial mortgage-backed securities	—			448.7				5.6			454.3			454.3
	Corporates	—			8,957.20				461.1			9,418.30			9,418.30
	Hybrids	—			428.8				—			428.8			428.8
	Municipals	—			1,007.00				—			1,007.00			1,007.00
	Agency residential mortgage-backed securities	—			98.6				—			98.6			98.6
	Non-agency residential mortgage-backed securities	—			1,368.10				—			1,368.10			1,368.10
	U.S. Government	790.9			210.9				—			1,001.80			1,001.80
	Equity securities available-for-sale	—			271.1				—			271.1			271.1
	Derivative financial instruments	—			221.8				—			221.8			221.8
	Reinsurance related embedded derivative, included in other assets	—			118				—			118			118
	Related party loans	—			—				119			119			119
	Other invested assets	—			—				188.2			188.2			188.2
	Total financial assets at fair value	$	1,995.20		$	14,648.30			$	1,020.30		$	17,663.80		$	17,663.80
	Liabilities
	Derivatives:
	FIA embedded derivatives, included in contractholder funds	$	—		$	—			$	1,544.40		$	1,544.40		$	1,544.40
	Derivative instruments: futures contracts	—			1				—			1			1
	Investment contracts, included in contractholder funds	—			—				12,378.60			12,378.60			13,703.80
	Call options payable for FSRCI, included in funds withheld for reinsurance liabilities	—			22.8				—			22.8			22.8
	Debt	—			300				—			300			300
	Total financial liabilities at fair value	$	—		$	323.8			$	13,923.00		$	14,246.80		$	15,572.00
	The carrying amounts of accrued investment income, and portions of other insurance liabilities, approximate fair value due to their short duration and, accordingly, they are not presented in the tables above.
	Valuation Methodologies
Fixed Maturity Securities & Equity Securities
The Company measures the fair value of its securities based on assumptions used by market participants in pricing the security. The most appropriate valuation methodology is selected based on the specific characteristics of the fixed maturity or equity security, and the Company will then consistently apply the valuation methodology to measure the security’s fair value. The Company's fair value measurement is based on a market approach, which utilizes prices and other relevant information generated by market transactions involving identical or comparable securities. Sources of inputs to the market approach include a third-party pricing service, independent broker quotations or pricing matrices. The Company uses observable and unobservable inputs in its valuation methodologies. Observable inputs include benchmark yields, reported trades, broker-dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers and reference data. In addition, market indicators and industry and economic events are monitored and further market data will be acquired when certain thresholds are met. For certain security types, additional inputs may be used, or some of the inputs described above may not be applicable. The significant unobservable input used in the fair value measurement of equity securities available-for-sale for which the market-approach valuation technique is employed is yields for comparable securities. Increases (decreases) in the yields would result in lower or higher, respectively, fair value measurements. For broker-quoted only securities, quotes from market makers or broker-dealers are obtained from sources recognized to be market participants. The fair value of the Company's investment in mutual funds is based on the net asset value published by the respective mutual fund and represents the value the Company would have received if it withdrew its investment on the balance sheet date. Management believes the broker quotes are prices at which trades could be executed based on historical trades executed at broker-quoted or slightly higher prices.
The Company did not adjust prices received from third parties as of June 30, 2014 and September 30, 2013. However, the Company does analyze the third-party valuation methodologies and its related inputs to perform assessments to determine the appropriate level within the fair value hierarchy.
Derivative Financial Instruments
The fair value of derivative assets and liabilities is based upon valuation pricing models, which represents what the Company would expect to receive or pay at the balance sheet date if it canceled the options, entered into offsetting positions, or exercised the options. Fair values for these instruments are determined externally by an independent consulting firm using market-observable inputs, including interest rates, yield curve volatilities, and other factors. The fair values of the embedded derivatives in the Company’s FIA products are derived using market indices, pricing assumptions and historical data. The fair value of the reinsurance related embedded derivative in the funds withheld reinsurance agreement with FSRCI is estimated based upon the change in the fair value of the assets supporting the funds withheld from reinsurance liabilities. As the fair value of the assets is based on a quoted market price (Level 2), the fair value of the embedded derivative is based on market-observable inputs and is classified as Level 2. The fair value of futures contracts represents the cumulative unsettled variation margin (open trade equity, net of cash settlements).
Investment contracts include deferred annuities, FIAs, indexed universal life policies (“IULs”) and immediate annuities. The fair value of deferred annuity, FIA, and IUL contracts is based on their cash surrender value (i.e. the cost the Company would incur to extinguish the liability) as these contracts are generally issued without an annuitization date. The fair value of immediate annuities contracts is derived by calculating a new fair value interest rate using the updated yield curve and treasury spreads as of the respective reporting date. At June 30, 2014 and September 30, 2013, this resulted in lower fair value reserves relative to the carrying value. The Company is not required to, and has not, estimated the fair value of the liabilities under contracts that involve significant mortality or morbidity risks, as these liabilities fall within the definition of insurance contracts that are exceptions from financial instruments that require disclosures of fair value.
Other Invested Assets
Fair value of our loan participation interest securities has been assessed to be equal to the unpaid principal balance of the participation interest as of June 30, 2014. In making this assessment the Company considered the sufficiency of the underlying loan collateral, movements in the benchmark interest rate between origination date and June 30, 2014, the primary market participant for these securities and the short-term maturity of these loans (less than 1 year).
Fair value of our available-for-sale embedded derivative is based on an unobservable input, the net asset value of the AnchorPath fund at the balance sheet date.  The available-for-sale embedded derivative is similar to a call option on the net asset value of the AnchorPath fund with a strike price of zero since FGL Insurance will not be required to make any additional payments at maturity of the fund-linked note in order to receive the net asset value of the AnchorPath fund on the maturity date.  Therefore, the Black Scholes model returns the net asset value of the AnchorPath fund as the fair value of the call option regardless of the values used for the other inputs to the option pricing model.  The net asset value of the AnchorPath fund is provided by the fund manager at the end of each calendar month and represents the value an investor would receive if it withdrew its investment on the balance sheet date. Therefore, the key unobservable input used in the Black Scholes model is the value of the AnchorPath fund. As the value of the AnchorPath fund increases or decreases, the fair value of the embedded derivative will increase or decrease.
Fair value of foreign exchange embedded derivative is based on the quoted USD/CAD exchange rates.
All of the other financial instruments included in other investments, primarily commercial mortgage loans ("CMLs") and policy loans, are carried at amortized cost which approximates fair value. Information on determining the carry value of these investments is described below:
In September 2013, the Company initiated a commercial loan program with Principal Real Estate Investors ("Principal"). The Company has funded thirteen CMLs originated and serviced by Principal with a fair value of $148.6 at June 30, 2014 which is equal to amortized cost as these loans were recently originated and are performing in good standing with no material credit concerns with the borrower or the property. Principal monitors the status of the payment obligations, the credit quality of the borrower and the property as well as for other events that may impact the performance and principal repayment of the CMLs. Additionally, the Company reviews Principal's valuation methodologies and processes to perform assessments. A CMLs' good standing and payment obligations are material factors in evaluating CMLs carrying value. At June 30, 2014, all thirteen CMLs are performing in good standing and there are no credit or other events which would require impairment evaluation.
Also included in other invested assets are policy loans. We have not attempted to determine the fair values associated with our policy loans, as we believe any differences between carrying value and the fair values afforded these instruments are immaterial to our consolidated financial position and, accordingly, the cost to provide such disclosure does not justify the benefit to be derived.
Related Party Loans
The related party loans (discussed in Note 14) carrying value at par approximates fair value, as this is the exit price for the obligation of these loans.
Quantitative information regarding significant unobservable inputs used for recurring Level 3 fair value measurements of financial instruments carried at fair value as of June 30, 2014 and September 30, 2013 are as follows:
		Fair Value at							Range (Weighted average)
		June 30, 2014			Valuation Technique		Unobservable Input(s)		June 30, 2014
Assets
Asset-backed securities		$	42.8		Broker-quoted		Offered quotes		95.45% - 102.39% (98.84%)
Commercial mortgage-backed securities		83.9			Broker-quoted		Offered quotes		104.00% - 121.39% (118.85%)
Corporates		653.5			Broker-quoted		Offered quotes		61.57% - 121.00% (99.61%)
Corporates		91.7			Matrix Pricing		Quoted prices		95.94% - 142.14% (101.73%)
Municipals		36.5			Broker-quoted		Offered quotes		-116.55%
Equity securities available-for-sale		6			Broker-quoted		Offered quotes		100.00%
Equity securities available-for-sale		35			Market-approach		Yield		8.08% - 9.58%
Other invested assets:
Available-for-sale embedded derivative		11.6			Black Scholes model		Net asset value of AnchorPath fund		100.00%
Salus participations, included in other invested assets		168.1			Market Pricing		Offered quotes		100.00%
Total		$	1,129.10
Liabilities
Derivatives:
FIA embedded derivatives, included in contractholder funds		$	1,864.50		Discounted cash flow		Market value of option		0% - 48.16% (3.95%)
							SWAP rates		1.70% - 2.63% (2.17%)
							Mortality multiplier		80%
							Surrender rates		0.50% - 75.00% (7.00%)
							Non-performance spread		0.25%
Total liabilities at fair value		$	1,864.50
		Fair Value at							Range (Weighted average)
		September 30, 2013			Valuation Technique		Unobservable Input(s)		30-Sep-13
Assets
Asset-backed securities		$	246.5		Broker-quoted		Offered quotes		100.00% - 107.25% (100.91%)
Commercial mortgage-backed securities		5.6			Broker-quoted		Offered quotes		95.50%
Corporates		404.5			Broker-quoted		Offered quotes		0.00% - 113.00% (90.45%)
Corporates		56.6			Market Pricing		Quoted prices		90.06% - 130.92% (97.19%)
Salus participations, included in other invested assets		157			Market Pricing		Offered quotes		100.00%
Total		$	870.2
Liabilities
Derivatives:
FIA embedded derivatives, included in contractholder funds		$	1,544.40		Discounted cash flow		Market value of option		0% - 38.24% (3.82%)
							SWAP rates		1.54% - 2.77% (2.16%)
							Mortality multiplier		80%
							Surrender rates		0.50% - 75% (7%)
							Non-performance spread		0.25%
Total liabilities at fair value		$	1,544.40
The significant unobservable inputs used in the fair value measurement of FIA embedded derivatives included in contractholder funds are market value of option, interest swap rates, mortality multiplier, surrender rates, and non-performance spread. The mortality multiplier at June 30, 2014 and September 30, 2013, is based on the 2000 annuity tables and assumes the contractholder population is 50% female and 50% male. Significant increases (decreases) in the market value of option in isolation would result in a higher or lower, respectively, fair value measurement. Significant increases or decreases in interest swap rates, mortality multiplier, surrender rates, or non-performance spread in isolation would result in a lower or higher, respectively, fair value measurement. Generally, a change in any one unobservable input would not result in a change in any other unobservable input.
Changes in unrealized losses (gains), net in the Company’s FIA embedded derivatives are included in "Benefits and other changes in policy reserves" in the Condensed Consolidated Statements of Operations.
The following tables summarize changes to the Company’s financial instruments carried at fair value and classified within Level 3 of the fair value hierarchy for the three and nine months ended June 30, 2014 and June 30, 2013 respectively. This summary excludes any impact of amortization of VOBA and DAC. The gains and losses below may include changes in fair value due in part to observable inputs that are a component of the valuation methodology.
	Three months ended June 30, 2014
	Balance at Beginning			Total Gains (Losses)							Net Purchases, Sales, & Settlements			Net transfer In (Out) of			Balance at End of
	of Period			Included in				Included in						Level 3 (a)			Period
				Earnings				AOCI
Assets
Fixed maturity securities available-for-sale:
Asset-backed securities	$	47.4		$	—			$	0.2		$	—		$	(4.8	)	$	42.8
Commercial mortgage-backed securities	—			—				0.1			83.8			—			83.9
Corporates	657			—				14.4			87.9			(14.1		)	745.2
Municipals	35.6			—				0.9			—			—			36.5
Equity securities available-for-sale	33.4			—				2.1			5.5			—			41
Other invested assets:
Available-for-sale embedded derivative	—			0.3				—			11.3			—			11.6
Salus participations, included in other invested assets	193.4			—				—			(25.3		)	—			168.1
Total assets at Level 3 fair value	$	966.8		$	0.3			$	17.7		$	163.2		$	(18.9	)	$	1,129.10
Liabilities
FIA embedded derivatives, included in contractholder funds	$	1,718.70		$	145.8			$	—		$	—		$	—		$	1,864.50
Total liabilities at Level 3 fair value	$	1,718.70		$	145.8			$	—		$	—		$	—		$	1,864.50
(a) The net transfers out of Level 3 during the three months ended June 30, 2014 were exclusively to Level 2.
	Nine months ended June 30, 2014
	Balance at Beginning			Total Gains (Losses)							Net Purchases, Sales, & Settlements			Net transfer In (Out) of			Balance at End of
	of Period			Included in				Included in						Level 3 (a)			Period
				Earnings				AOCI
Assets
Fixed maturity securities available-for-sale:
Asset-backed securities	$	246.5		$	—			$	(1.2	)	$	5		$	(207.5	)	$	42.8
Commercial mortgage-backed securities	5.6			—				0.5			83.8			(6.0		)	83.9
Corporates	461.1			—				18.4			279.8			(14.1		)	745.2
Municipals	—			—				1.5			35			—			36.5
Equity securities available-for-sale	—			—				2.1			38.9			—			41
Other invested assets:
Available-for-sale embedded derivative	—			0.3				—			11.3			—			11.6
Salus participations, included in other invested assets	157			—				—			11.1			—			168.1
Total assets at Level 3 fair value	$	870.2		$	0.3			$	21.3		$	464.9		$	(227.6	)	$	1,129.10
Liabilities
FIA embedded derivatives, included in contractholder funds	$	1,544.40		$	320.1			$	—		$	—		$	—		$	1,864.50
Total liabilities at Level 3 fair value	$	1,544.40		$	320.1			$	—		$	—		$	—		$	1,864.50
(a) The net transfers out of Level 3 during the nine months ended June 30, 2014 were exclusively to Level 2. There was a $6.0 transfer within the Level 3 asset class from commercial mortgage-backed securities to asset-backed securities.
	Three months ended June 30, 2013
	Balance at Beginning			Total Gains (Losses)							Net Purchases, Sales, & Settlements			Net transfer In (Out) of			Balance at End of
	of Period			Included in				Included in						Level 3 (a)			Period
				Earnings				AOCI
Assets
Fixed maturity securities available-for-sale:
Contingent Purchase Price	$	41		$	—			$	—		$	—		$	—		$	41
Asset-backed securities	5.3			—				(0.2		)	117.4			0.1			122.6
Commercial mortgage-backed securities	6.2			—				(0.1		)	—			(0.1		)	6
Corporates	356.5			—				(11.9		)	94.5			(0.1		)	439
Hybrids				—				—			—			—			—
Equity securities available-for-sale	10			—				1.6			0.1			—			11.7
Salus preferred equity, included in related party loans	32			—				—			—			—			32
Salus participations, included in other invested assets	15.2			—				—			147			—			162.2
Total assets at Level 3 fair value	$	466.2		$	—			$	(10.6	)	$	359		$	(0.1	)	$	814.5
Liabilities
FIA embedded derivatives, included in contractholder funds	$	1,639.60		$	(53.7	)		$	—		$	—		$	—		$	1,585.90
Total liabilities at Level 3 fair value	$	1,639.60		$	(53.7	)		$	—		$	—		$	—		$	1,585.90
(a) The net transfers in and out of Level 3 during the three months ended June 30, 2013 were exclusively to or from Level 2.
	Nine months ended June 30, 2013
	Balance at Beginning			Total Gains (Losses)							Net Purchases, Sales, & Settlements			Net transfer In (Out) of			Balance at End of
	of Period			Included in				Included in						Level 3 (a)			Period
				Earnings				AOCI
Assets
Fixed maturity securities available-for-sale:
Contingent Purchase Price	$	41		$	—			$	—		$	—		$	—		$	41
Asset-backed securities	15.9			—				(0.2		)	117.4			(10.5		)	122.6
Commercial mortgage-backed securities	5			—				—			1						6
Corporates	135.3			(0.3		)		(10.8		)	348.6			(33.8		)	439
Hybrids	8.9			—				(0.2		)	—			(8.7		)	—
Equity securities available-for-sale	—			—				1.6			10.1			—			11.7
Salus preferred equity, included in related party loans	32			—				—			—			—			32
Salus participations, included in other invested assets	—			—				—			162.2			—			162.2
Total assets at Level 3 fair value	$	238.1		$	(0.3	)		$	(9.6	)	$	639.3		$	(53.0	)	$	814.5
Liabilities
FIA embedded derivatives, included in contractholder funds	$	1,550.80		$	35.1			$	—		$	—		$	—		$	1,585.90
Total liabilities at Level 3 fair value	$	1,550.80		$	35.1			$	—		$	—		$	—		$	1,585.90
(a)	The net transfers in and out of Level 3 during the nine months ended June 30, 2013 were exclusively to or from Level 2.
The Company reviews the fair value hierarchy classifications each reporting period. Changes in the observability of the valuation attributes may result in a reclassification of certain financial assets or liabilities. Such reclassifications are reported as transfers in and out of Level 3, or between other levels, at the beginning fair value for the reporting period in which the changes occur. There were no transfers between Level 1 and Level 2 for the three or nine months ended June 30, 2014. We transferred $79.3 U.S. Government securities from Level 1 into Level 2 for the three and nine months ended June 30, 2013 reflecting the level of market activity in these instruments.
Primary market issuance and secondary market activity for certain asset-backed, hybrid and corporate securities during the three months and nine months ended June 30, 2014 and June 30, 2013 increased the market observable inputs used to establish fair values for similar securities. These factors, along with more consistent pricing from third-party sources, resulted in the Company concluding that there is sufficient trading activity in similar instruments to support classifying these securities as Level 2 as of June 30, 2014 and June 30, 2013. Accordingly, the Company’s assessment resulted in net transfers out of Level 3 of $18.9 and $221.6 related to asset backed securities and corporate securities during the three and nine months ended June 30, 2014. During the three and nine months ended June 30, 2013, there were net transfers out of Level 3 of $0.1 and $53.0, respectively, related to corporate and hybrid securities.
The following tables present the gross components of purchases, sales, and settlements, net, of Level 3 financial instruments for the three and nine months ended June 30, 2014 and June 30, 2013, respectively. There were no issuances during these periods.
	Three months ended June 30, 2014
	Purchases			Sales				Settlements			Net Purchases, Sales, & Settlements
Assets
Fixed maturity securities available-for-sale:
Commercial mortgage-backed securities	$	83.8		$	—			$	—		$	83.8
Corporates	88.9			(1.0		)		—			87.9
Equity securities available-for-sale	5.5			—				—			5.5
Other invested assets:
Available-for-sale embedded derivative	11.3			—				—			11.3
Salus participations, included in other invested assets	4.1			—				(29.4		)	(25.3		)
Total assets at fair value	$	193.6		$	(1.0	)		$	(29.4	)	$	163.2
	Nine months ended June 30, 2014
	Purchases			Sales				Settlements			Net Purchases, Sales, & Settlements
Assets
Fixed maturity securities available-for-sale:
Asset-backed securities	$	5		$	—			$	—		$	5
Commercial mortgage-backed securities	83.8			—				—			83.8
Corporates	283.2			(1.0		)		(2.4		)	279.8
Equity securities available-for-sale	38.9			—				—			38.9
Municipal	35			—				—			35
Other invested assets
Available-for-sale embedded derivative	11.3			—				—			11.3
Salus participations, included in other invested assets	109.1			—				(98.0		)	11.1
Total assets at fair value	$	566.3		$	(1.0	)		$	(100.4	)	$	464.9
	Three months ended June 30, 2013
	Purchases			Sales				Settlements			Net Purchases, Sales, & Settlements
Assets
Fixed maturity securities available-for-sale:
Asset-backed securities	$	117.5		$	—			$	(0.1	)	$	117.4
Corporates	102.7			—				(8.2		)	94.5
Equity securities available-for-sale	0.1			—				—			0.1
Other invested assets	147			—				—			147
Total assets at fair value	$	367.3		$	—			$	(8.3	)	$	359
	Nine months ended June 30, 2013
	Purchases			Sales				Settlements			Net Purchases, Sales, & Settlements
Assets
Fixed maturity securities available-for-sale:
Asset-backed securities	$	117.5		$	—			$	(0.1	)	$	117.4
Commercial mortgage-backed securities	1			—				—			1
Corporates	380.1			(9.6		)		(21.9		)	348.6
Equity securities available-for-sale	10.1			—				—			10.1
Other invested assets	162.2			—				—			162.2
Total assets at fair value	$	670.9		$	(9.6	)		$	(22.0	)	$	639.3

Intangibles_Assets

Intangibles Assets	9 Months Ended
	Jun. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Intangibles	'
	Intangible Assets
	Information regarding VOBA and DAC which includes deferred sales inducement, is as follows:
		VOBA			DAC			Total
	Balance at September 30, 2012	$	104.3		$	169.2		$	273.5
	Deferrals	—			109.2			109.2
	Less: Amortization related to:
	Unlocking	22.6			4.8			27.4
	Interest	16.2			7.1			23.3
	Periodic amortization	(151.8		)	(62.0		)	(213.8		)
	Add: Adjustment for unrealized investment gains/losses	211.3			49.6			260.9
	Balance at June 30, 2013	$	202.6		$	277.9		$	480.5
		VOBA			DAC			Total
	Balance at September 30, 2013	$	225.3		$	338.5		$	563.8
	Deferrals	—			172.5			172.5
	Less: Amortization related to:
	Unlocking	21.8			3.4			25.2
	Interest	11			10.1			21.1
	Periodic amortization	(59.3		)	(35.9		)	(95.2		)
	Add: Adjustment for unrealized investment gains/losses	(108.2		)	(83.0		)	(191.2		)
	Balance at June 30, 2014	$	90.6		$	405.6		$	496.2
	Amortization of VOBA and DAC is based on the amount of gross margins or profits recognized, including investment gains and losses. The adjustment for unrealized net investment gains represents the amount of VOBA and DAC that would have been amortized if such unrealized gains and losses had been recognized. This is referred to as the “shadow adjustments” as the additional amortization is reflected in AOCI rather than the statement of operations. As of June 30, 2014 and September 30, 2013, the VOBA balance included cumulative adjustments for net unrealized investment gains/losses of $189.7 and $81.4, respectively, and the DAC balances included cumulative adjustments for net unrealized investment gains/losses of $64.4 and $18.6, respectively.
	The above DAC balances include $29.8 and $26.2 of deferred sales inducements, net of shadow adjustments, as of June 30, 2014 and September 30, 2013, respectively.
	The weighted average amortization period for VOBA is approximately 5.0 years. Estimated amortization expense for VOBA in future fiscal periods is as follows:
		Estimated Amortization Expense
	Fiscal Year	VOBA
	2014	$	8.2
	2015	43.4
	2016	39.6
	2017	32.7
	2018	26.6
	Thereafter	129.7

Long_Term_Debt

Long Term Debt	9 Months Ended
	Jun. 30, 2014
Debt Disclosure [Abstract]	'
Long Term Debt	'
	Long Term Debt
	In March 2013, FGL's wholly owned subsidiary, Fidelity & Guaranty Life Holdings, Inc. ("FGLH"), issued $300.0 aggregate principal amount of its 6.375% senior notes (“Notes Offering”) due April 1, 2021, at par value, which FGLH may elect to redeem after April 1, 2016. Interest payments are due semi-annually, April 1 and October 1, commencing October 1, 2013, and total interest expense was $4.8 and $14.3, for the three and nine months ended June 30, 2014, respectively, and $5.1 for the three and nine months ended June 30, 2013.
	In connection with the Notes Offering, FGL capitalized $10.2 of debt issue costs. The fees are classified as “Other assets” in the accompanying Condensed Consolidated Balance Sheets as of June 30, 2014 and are being amortized over the redemption date using the straight-line method over the remaining term of the debt, of which $0.9 and $2.6 has been amortized for the three and nine months ended June 30, 2014, respectively and $0.8 for the three and nine months ended June 30, 2013.

Equity

Equity	9 Months Ended
	Jun. 30, 2014
Equity [Abstract]	'
Equity	'
	Equity
	On November 26, 2013, the Company’s board of directors increased the number of authorized shares of the Company’s common stock, par value $0.01 per share, from 100 thousand to 500,000 thousand and approved a stock split of the issued and outstanding shares of common stock at a ratio of 4,700-for-1, resulting in 47,000 thousand shares outstanding. Net income per common share and the weighted average common shares used in computing net income per share for the three and nine months ended June 30, 2014 and 2013, included in the Company’s Consolidated Statement of Operations, have been adjusted to give effect to the stock split. Likewise, the amount of shares authorized, issued, and outstanding disclosed in the Company’s Consolidated Balance sheets have also been adjusted.
	In December 2013 the Company issued 9,750 thousand shares of common stock as well as 58 thousand unrestricted shares to its directors in connection with its initial public offering ("IPO") and began trading on the New York Stock Exchange under the ticker symbol "FGL." FGL also granted the underwriters an option to purchase an additional 1,463 thousand shares of common stock that was subsequently exercised. Subsequent to the offering HGI indirectly held 47,000 thousand shares of FGL's outstanding common stock, representing an 80.4% interest at June 30, 2014.
	On December 18, 2013, the Company received net proceeds from the IPO of $172.5. A portion of the proceeds were used to pay a special dividend of $43.0 to HGI.
	On March 3, 2014, FGL’s Board of Directors declared a quarterly cash dividend of $0.065 per share. The dividend was paid on March 31, 2014 to shareholders of record as of the close of business on March 17, 2014. The total cash payment of $3.9 (based on fully vested, outstanding shares of 58,271 thousand) was funded from the IPO proceeds.
	On May 6, 2014, FGL’s Board of Directors declared a quarterly cash dividend of $0.065 per share. The dividend was paid on June 2, 2014 to shareholders of record as of the close of business on May 19, 2014 and total cash paid was $3.7 (based on fully vested, outstanding shares of 58,271 thousand).

Stock_Compensation

Stock Compensation	9 Months Ended
	Jun. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Stock Compensation	'
	Stock Compensation
	In conjunction with the IPO, on November 7, 2013, FGL’s Board of Directors adopted a long term stock-based incentive plan (the “FGL 2013 Stock Incentive Plan” or the “Omnibus Plan”) under which certain officers, employees, directors and consultants are eligible to receive equity based awards. The Omnibus Plan was approved by the stockholder on November 19, 2013, became effective on December 12, 2013 and expires in December 2023. FGL’s Compensation Committee approved the granting of awards under the Omnibus Plan to certain employees, officers and directors (other than the members of the Compensation Committee). In addition, FGL’s Board of Directors approved the granting of awards to members of FGL’s Compensation Committee (the “Compensation Committee Awards”). The Compensation Committee Awards were not made under the Omnibus Plan; however, these awards will be construed and administered as if subject to the terms of the Omnibus Plan. FGL’s Board of Directors and stockholder also approved the granting of unrestricted common shares to its directors in lieu of cash compensation at the election of each individual director (the “Unrestricted Share Awards”). The Omnibus Plan, Compensation Committee Awards and the Unrestricted Share Awards are collectively referred to as the “FGL Plans” and are accounted for as equity plans. New shares are issued to satisfy stock option exercises. As of the date the stock awards are approved and communicated to the recipient, the fair value of stock options is determined using a Black-Scholes options valuation methodology, and the fair value of other stock awards is based upon the market value of the stock. The fair value of the awards is expensed over the service period, which generally corresponds to the vesting period, and is recognized as an increase to Additional paid-in capital in stockholders’ equity.
	Prior to the initial public offering, FGL did not offer stock-based compensation plans to any of its directors, employees or the directors or employees of its subsidiaries.
	FGL’s principal subsidiary, FGLH, sponsors stock-based incentive plans and dividend equivalent plans (“DEPs”) for its employees (the “FGLH Plans”). Awards under the FGLH Plans are based on the common stock of FGLH. In 2013, FGLH determined that all equity awards will be settled in cash when exercised and therefore are classified as liability plans. For these awards, the settlement value is classified as a liability, in "Other liabilities", on the Consolidated Balance Sheets and the liability is adjusted to the current fair value through net income at the end of each reporting period, which causes volatility in net income (loss) as a result of changes in the fair value of FGLH’s stock. The fair value of stock options is determined using a Black-Scholes options valuation methodology and the fair value of restricted stock units is based upon the fair value of FGLH’s stock. In connection with the IPO, the FGLH plans were frozen and no new awards will be granted under these plans. Outstanding awards will be permitted to vest in accordance with the award agreements and will be cash settled upon vesting or exercise.
	The Company recognized total stock compensation expense related to the FGL Plans and FGLH Plans as follows:
			Three months ended							Nine months ended
			30-Jun-14				30-Jun-13			30-Jun-14		30-Jun-13
	FGL Plans
	Stock options		$	0.1			$	—		$	0.2	$	—
	Restricted shares		0.1				—			0.4		—
	Performance restricted stock units		(0.1		)		—			0.7		—
	Unrestricted shares		—				—			1		—
			0.1				—			2.3		—
	FGLH Plans
	Stock Incentive Plan - stock options		1.1				1			7		1.9
	2011 DEP		—				0.2			0.6		0.6
	Amended and Restated Stock Incentive Plan - stock options		0.9				0.2			5.9		0.2
	Amended and Restated Stock Incentive Plan - restricted stock units		0.3				0.2			1.4		0.4
	2012 DEP		0.1				0.2			0.3		0.4
			2.4				1.8			15.2		3.5
	Total stock compensation expense		2.5				1.8			17.5		3.5
	Related tax benefit		0.9				0.6			6.1		1.2
	Net stock compensation expense		$	1.6			$	1.2		$	11.4	$	2.3
	The stock compensation expense is included in "Acquisition and operating expenses, net of deferrals" in the Condensed Consolidated Statements of Operations.
	Total compensation expense related to the FGL Plans and FGLH Plans not yet recognized as of June 30, 2014 and the weighted-average period over which this expense will be recognized are as follows:
			Unrecognized Compensation				Weighted Average Recognition
			Expense				Period in Years
	FGL Plans
	Stock options		$	0.7			2.7
	Restricted shares		2.3				2.7
	Performance restricted stock units		8.8				2.5
	Unrestricted shares		—				N/A
			11.8
	FGLH Plans
	Stock Incentive Plan		1				0.3
	2011 DEP		—				0
	Amended and Restated Stock Incentive Plan - stock options		3.2				1.5
	Amended and Restated Stock Incentive Plan - restricted stock units		2				1.5
	2012 DEP		0.8				1.8
			7
	Total unrecognized stock compensation expense		$	18.8			2.1
	FGL Plans
	FGL’s Compensation Committee is authorized to grant up to 2,838 thousand equity awards under the FGL Plans. On December 12, 2013, FGL granted 239 thousand stock options to certain officers, directors and other key employees under the Omnibus Plan and 10 thousand stock options to Compensation Committee members. These stock options vest in equal installments over a period of three years and expire on the seventh anniversary of the grant date. The total fair value of the option grants to certain officers and directors on the grant date was $0.6 and the total fair value of the option grants to other key employees on the grant date was $0.3. At June 30, 2014, the intrinsic value of stock options outstanding, exercisable and vested or expected to vest was $1.7, $0 and $1.7, respectively. During both the nine months ended June 30, 2014 and 2013 the intrinsic value of stock options exercised was $0.
	A summary of FGL’s outstanding stock options as of June 30, 2014, and related activity during the three month period, is as follows (share amount in thousands):
	Stock Option Awards		Options			Weighted Average			Weighted Average Grant
						Exercise Price			Date Fair Value
	Stock options outstanding at September 30, 2013		—			$	—		$	—
	Granted		249			17			3.76
	Exercised		—			—			—
	Forfeited or expired		(4	)					5.26
	Stock options outstanding at June 30, 2014		245			17			3.73
	Exercisable at June 30, 2014		—
	Vested or expected to vest at June 30, 2014		241			17			3.7
	The following assumptions were used in the determination of these grant date fair values using the Black-Scholes option pricing model and based on the value of FGL's common stock:
		2014
	Risk-free interest rate	1.40%
	Assumed dividend yield	1.50%
	Expected option term	4.5 years
	Volatility	25%
	The dividend yield is based on the expected dividend rate during the expected life of the option. Expected volatility is based on the implied volatility of exchange-traded securities for life insurance companies. The risk-free interest rate is based on the U.S. Treasury yield curve in effect at the time of the grant. The expected life of the options granted represents the weighted-average period of time from the grant date to the date of exercise, expiration or cancellation based upon a simplified method.
	On December 12, 2013, FGL also granted 96 thousand restricted shares to certain officers and directors under the Omnibus Plan and 11 thousand restricted shares to Compensation Committee members. In addition, FGL granted 64 thousand restricted shares to other key employees on December 12, 2013; however, these awards were not communicated to the recipients until January 30, 2014 which was determined to be the grant date for accounting purposes. These shares vest in equal installments over a period of three years and expire on the seventh anniversary of the grant date. The total fair value of the restricted shares granted to certain officers and directors on their grant date was $1.8 and the total fair value of the restricted shares granted to other key employees on the grant date was $1.2.
	The restricted shares are entitled to any cash dividends paid on FGL’s stock prior to vesting of the restricted shares. The cash dividends are held by FGL until the shares become vested and are paid to the recipient at that time or are forfeited if the restricted shares do not vest.
	A summary of FGL’s restricted shares outstanding as of June 30, 2014, and related activity during the nine months then ended, are as follows (share amount in thousands):
Restricted Stock Awards		Shares			Weighted Average Grant
					Date Fair Value
Restricted shares outstanding at September 30, 2013		—			$	—
Granted		171			18.11
Forfeited or expired		(5	)		19.98
Restricted shares outstanding at June 30, 2014		166			18.06
Exercisable at June 30, 2014		—			—
Vested or expected to vest at June 30, 2014		162			18
On December 12, 2013, FGL also granted 469 thousand performance restricted stock units (“PRSUs”) to senior executive officers under the Omnibus Plan. In addition, FGL granted 72 thousand PRSUs to a new senior executive officer on January 22, 2014. The award was communicated to and accepted by the senior executive officer on January 27, 2014. These units vest on September 30, 2016, contingent on the satisfaction of performance criteria and on the officer's continued employment unless otherwise noted in the agreement. The total fair value of the PRSUs on the grant date of December 12, 2013 was $8.0 and the total fair value of the PRSUs awarded to the senior executive officer on the grant date of January 27, 2014 was $1.4.
PRSUs subject to vesting are adjusted based on yearly performance, which is evaluated on two non-GAAP measures: (1) adjusted operating income, and (2) return on equity.
A summary of PRSUs outstanding as of June 30, 2014, and related activity during the nine months then ended, is as follows (share amount in thousands):
Performance Restricted Stock Units (PRSUs)		Shares			Weighted Average Grant
					Date Fair Value
PRSUs outstanding at September 30, 2013		—			$	—
Granted		541			17.37
Forfeited or expired		—			—
PRSUs outstanding at June 30, 2014		541			17.37
Exercisable at June 30, 2014		—
Vested or expected to vest at June 30, 2014		541			17.37
Additionally, on December 12, 2013, FGL granted unrestricted shares totaling 58 thousand to certain directors in payment for services rendered. Total fair value of the unrestricted shares on the grant date was $1.0.
FGLH Plans
A summary of FGLH's outstanding stock options as of June 30, 2014 and changes during the nine months then ended are as follows (share amount in thousands):
		FGLH
Stock Option Awards		Options			Weighted Average
					Exercise Price (a)
Stock options outstanding at September 30, 2013		335			$	44.23
Granted		—			—
Exercised		(41	)		41.23
Forfeited or expired		(3	)		47.06
Stock options outstanding at June 30, 2014		291			44.62
Exercisable at June 30, 2014		132			42.33
Vested or expected to vest at June 30, 2014		284			44.57
(a)	The exercise price is based on the value of FGLH’s common stock, not the value of the Company’s common stock. The fair value of FGLH stock at June 30, 2014 is $110.74.
At June 30, 2014, the intrinsic value of stock options outstanding, exercisable and vested or expected to vest was $19.2, $9.0 and $18.8, respectively. The intrinsic value of stock options exercised during the nine months ended June 30, 2014 and 2013 was $5.9 and $0.4, respectively.
A summary of FGLH's restricted stock units outstanding as of June 30, 2014 and related activity during the nine months then ended is as follows (share amount in thousands):
Restricted Stock Awards		Shares			Weighted Average Grant
					Date Fair Value (a)
Restricted shares outstanding at September 30, 2013		46			$	49.6
Granted		—			—
Exercised		(18	)		49.53
Forfeited or expired		(1	)		49.45
Restricted shares outstanding at June 30, 2014		27			49.55
Exercisable at June 30, 2014		—
Restricted stock vested or expected to vest at June 30, 2014		25			49.55
(a)	Fair value is based on the value of FGLH’s common stock, not the value of the Company’s common stock.

Income_Taxes

Income Taxes	9 Months Ended
	Jun. 30, 2014
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	Income Taxes
	The provision for income taxes represents federal income taxes. The effective tax rate for the three and nine months ended June 30, 2014 was 31.2% and 7.0%, respectively. The effective tax rate for the three and nine months ended June 30, 2013 was 28.7% and 32.1%, respectively. The effective tax rate on pre-tax income differs from the U.S Federal statutory rate primarily due to current period changes to the Company’s valuation allowance offsetting its deferred tax asset position. The Company recognized a partial valuation allowance release of $35.0 in the quarter ended March 31, 2014 due to the adoption of a prudent and feasible tax planning strategy that makes it more likely than not that a portion of its capital loss carry forward deferred tax assets will now be realized. The impact is included in the nine month period ended June 30, 2014.
	In assessing the recoverability of its deferred tax assets, management regularly considers the guidance outlined within ASC 740 (“Income Taxes”). The guidance requires an assessment of both positive and negative evidence in determining the realizability of deferred tax assets. A valuation allowance is required to reduce the Company’s deferred tax asset to an amount that is more likely than not to be realized. In determining the net deferred tax asset and valuation allowance, management is required to make judgments and estimates related to projections of future profitability. These judgments include the following: the timing and extent of the utilization of net operating loss carry-forwards, the reversals of temporary differences, and tax planning strategies.
	The Company maintains a valuation allowance against certain U.S. Internal Revenue Code, Section 382 ("Section 382") limited capital loss carry forwards and the deferred tax assets of its non-life insurance company subsidiaries. A valuation allowance has been placed against Section 382 limited capital loss carry forwards to reduce these deferred tax assets to an amount that is more-likely than not to be realized before the attributes expire. The non-life insurance company subsidiaries have a history of losses and insufficient sources of future income in order to recognize any portion of their deferred tax assets. The valuation allowance is reviewed quarterly and will be maintained until there is sufficient positive evidence to support a release. At each reporting date, management considers new evidence, both positive and negative, that could impact the future realization of deferred tax assets. Management will consider a release of the valuation allowance once there is sufficient positive evidence that it is more likely than not that the deferred tax assets will be realized. Any release of the valuation allowance will be recorded as a tax benefit increasing net income or other comprehensive income.
	During the period ended March 31, 2014, market conditions changed sufficiently that Management determined it was prudent and feasible to adopt a new tax planning strategy. The strategy involves repositioning a portion of the investment portfolio to trigger $100.0 in net unrealized built-in gains (“NUBIG”). The sale of these assets will result in an increase to the Company’s Section 382 limit (i.e. the “adjusted limit”), enabling the Company to utilize capital loss carry forwards that will offset NUBIG-related gains. This strategy makes it more likely than not that the amount of capital loss carryforwards needed to offset those gains will be utilized. Therefore, a partial release of the valuation allowance offsetting the deferred tax asset related to capital loss carry forwards was recorded at the March 31, 2014 reporting date. Management intends to execute the transactions prior to the expiration of Section 382-limited capital loss carry forwards. As of June 30, 2014, approximately $67.5 of NUBIG has been recognized locking in $23.6 in benefits. The Company currently has capital loss carry forwards of $258.8 that are set to expire December 31, 2015.
	Key considerations in the Company’s decision supporting adoption of the planning strategy include wider spreads in specific credit markets, increased range of executable reinvestment opportunities, and an enhanced focus on managing and increasing the Company’s Statutory Interest Maintenance Reserve (“IMR”) balance and capital position providing increased flexibility in volatile interest rate and credit spread markets.
	The Company has recorded a partial valuation allowance of $120.4 against its gross deferred tax assets and liabilities of $215.7 as of June 30, 2014. The June 30, 2014 valuation allowance is an offset to capital loss carryforwards (post tax planning strategy execution) expected to expire, as well as non-life company deferred tax assets that will most likely not be recovered due to lack of forecasted taxable income in the non-life segment.
	The Company’s tax provision changes quarterly based on recurring and non-recurring factors, including but not limited to, enacted tax legislation, tax audit settlements and changes in judgment from the evaluation of new information resulting in the recognition or de-recognition and/or re-measurement of a tax position taken in a prior period. Changes in judgment related to a tax position are generally recognized in the quarter in which any such change occurs.

Commitments_and_Contingencies

Commitments and Contingencies	9 Months Ended
	Jun. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	Commitments and Contingencies
	Contingencies
	Regulatory and Litigation Matters
	FGL is assessed amounts by the state guaranty funds to cover losses to policyholders of insolvent or rehabilitated insurance companies. Those mandatory assessments may be partially recovered through a reduction in future premium taxes in certain states. At June 30, 2014, FGL has accrued $4.4 for guaranty fund assessments which is expected to be offset by estimated future premium tax deductions of $4.7.
	The Company has received inquiries from a number of state regulatory authorities regarding its use of the U.S. Social Security Administration’s Death Master File (the "Death Master File") and compliance with state claims practices regulation. To date, the Company has received inquiries from authorities in Maryland, Minnesota and New York. The New York Insurance Department issued a letter and subsequent regulation requiring life insurers doing business in New York to use the Death Master File or similar databases to determine if benefits were payable under life insurance policies, annuities, and retained asset accounts. Legislation requiring insurance companies to use the Death Master File to identify potential claims has recently been enacted in Maryland and other states. As a result of these legislative and regulatory developments, in May 2012, the Company undertook an initiative to use the Death Master File and other publicly available databases to identify persons potentially entitled to benefits under life insurance policies, annuities and retained asset accounts. During fiscal 2012, the Company incurred an $11.0 benefit expense, net of reinsurance, to increase reserves to cover potential benefits payable resulting from this ongoing effort. Based on its analysis to date, and management’s estimate, the Company believes the remaining accrual will cover the reasonably estimated liability arising out of these developments. In addition, the Company has received audit and examination notices from several state agencies responsible for escheatment and unclaimed property regulation in those states.  The Company established a contingency of $2.0, the mid-point of an estimated range of $1.0 to $3.0, related to the external legal costs and administrative costs of said audits and examinations of which $0.4 has been paid through June 30, 2014. Additional costs that cannot be reasonably estimated as of the date of this filing are possible as a result of ongoing regulatory developments and other future requirements related to this matter.
	The Company is involved in various pending or threatened legal proceedings, including purported class actions, arising in the ordinary course of business. In some instances, these proceedings include claims for unspecified or substantial punitive damages and similar types of relief in addition to amounts for alleged contractual liability or requests for equitable relief. In the opinion of management and in light of existing insurance and other potential indemnification, reinsurance and established reserves, such litigation is not expected to have a material adverse effect on the Company’s financial position, although it is possible that the results of operations and cash flows could be materially affected by an unfavorable outcome in any one period.
	On July 18, 2011, a putative class action Complaint was filed in the United States District Court for the Central District of California, captioned Eddie L. Cressy v. OM Financial Life Insurance Company, et. al., Case No. 2:2011-cv-05871. The Plaintiff asked the Court to certify the action as a class action on behalf of both a nationwide and a California class defined as certain persons who were sold OM Financial Life Insurance equity-indexed universal life insurance policies.
	The Plaintiff alleged, inter alia, that the Plaintiff and members of the putative class relied on defendants’ advice to purchase unsuitable insurance policies. After extensive motion practice, the federal court dismissed the federal causes of action, with prejudice, and, on May 9, 2013, declined to exercise supplemental jurisdiction over the state law claims, dismissed the state law claims, without prejudice, and granted the Plaintiff leave to re-file the state law claims in California state court.
	On July 5, 2013, the Plaintiff filed a putative class action captioned Eddie L. Cressy v. Fidelity Guaranty [sic] Life Insurance Company, et. al. in the Superior Court of California, County of Los Angeles (the "Court"), at No. BC-514340. The state court Complaint asserts, inter alia, that the Plaintiff and members of the putative class relied on Defendants’ advice in purchasing unsuitable equity-indexed insurance policies. The Plaintiff seeks to certify a class defined as “all persons who reside or are located in the state of California who were sold OM Financial/FGL Insurance equity-indexed universal life insurance policies as an investment.”
	On April 4, 2014, the Plaintiff, FGL Insurance and the other two defendants signed a Settlement Agreement, pursuant to which FGL Insurance has agreed to pay a total of $5.3 to settle the claims of a nationwide class consisting, with certain exclusions, of all persons who own or owned an OM Financial/FGL Insurance indexed universal life insurance policy issued from January 1, 2007 through March 31, 2014, inclusive.  As part of the settlement, FGL Insurance agreed to certification of the nationwide class for settlement purposes only. An amended Settlement Agreement was filed with the Court on April 23, 2014 as part of the Plaintiff’s Unopposed Motion for Preliminary Approval of Settlement and Conditional Class Certification. On June 19, 2014, the Court held a hearing on Plaintiff's Unopposed Motion for Preliminary Approval of Settlement and Conditional Class Certification and entered its Order Granting Motion for Preliminary Approval of Class Action Settlement ("Order"). Pursuant to the terms of the Settlement Agreement and the Court's Order, FGL Insurance has the right to unilaterally terminate the settlement if either: (i) 100 policyholders or (ii) policyholders representing more than one percent (1%) of the total premiums paid opt out of or object to the settlement. Final settlement is also subject to other conditions and the entry of a final order that can no longer be appealed. On October 3, 2014, the Court is expected to hold a hearing to determine whether it should finally approve the settlement.
	At June 30, 2014, the Company estimated the total cost for the settlement, legal fees and other costs related to this class action would be $9.9 and established a liability for the unpaid portion of the estimate of $7.3. Based on the information currently available the Company does not expect the actual cost for settlement, legal fees and other related cost to differ materially from the amount accrued. The Company is seeking indemnification from OM Group (UK) Limited (“OMGUK”) under the First Amended and Restated Stock Purchase Agreement, dated February 17, 2011 (the “F&G Stock Purchase Agreement”) between HFG and OMGUK related to the settlement and the costs and fees in defending the Cressy litigation in both the federal and state courts. The Company has established an amount recoverable from OMGUK for the amount of $4.5, the collection of which the Company believes is probable. The actual amount recovered from OMGUK could be greater or less than the Company’s estimate, but the Company anticipates that the amount recovered will not be materially different than its current estimate. The settlement, legal fees and other costs related to this class action and the amount recoverable from OMGUK is presented net in the income statement in the caption “Benefits and other changes in policy reserves.”
	In light of the inherent uncertainties involved in the matter described above and uncertainties in litigation generally, there can be no assurance that this litigation, or any other pending or future litigation, will not have a material adverse effect on our business, financial condition, or results of operations.
	Guarantees
	The F&G Stock Purchase Agreement between HFG and OMGUK includes a Guarantee and Pledge Agreement which creates certain obligations for FGLH as a grantor and also grants a security interest to OMGUK of FGLH’s equity interest in FGL Insurance in the event that HFG fails to perform in accordance with the terms of the F&G Stock Purchase Agreement. The Company is not aware of any events or transactions that resulted in non-compliance with the Guarantee and Pledge Agreement.

Reinsurance

Reinsurance	9 Months Ended
	Jun. 30, 2014
Reinsurance Disclosures [Abstract]	'
Reinsurance	'
	Reinsurance
	The Company reinsures portions of its policy risks with other insurance companies. The use of reinsurance does not discharge an insurer from liability on the insurance ceded. The insurer is required to pay in full the amount of its insurance liability regardless of whether it is entitled to or able to receive payment from the reinsurer. The portion of risks exceeding the Company's retention limit is reinsured with other insurers. The Company seeks reinsurance coverage in order to limit its exposure to mortality losses and enhance capital management. The Company follows reinsurance accounting when there is adequate risk transfer. Otherwise, the deposit method of accounting is followed. The Company also assumes policy risks from other insurance companies.
	The effect of reinsurance on premiums earned, benefits incurred and reserve changes for the three and nine months ended June 30, 2014 and June 30, 2013 were as follows:
		Three months ended												Nine months ended
		June 30, 2014						June 30, 2013						June 30, 2014						June 30, 2013
		Net Premiums Earned			Net Benefits Incurred			Net Premiums Earned			Net Benefits Incurred			Net Premiums Earned			Net Benefits Incurred			Net Premiums Earned			Net Benefits Incurred
	Direct	$	65.6		$	324.1		$	69.9		$	150.8		$	200.3		$	876.9		$	212.3		$	579.7
	Assumed	8.8			6.7			9.1			8.2			27.6			19.1			24.5			15.7
	Ceded	(61.3		)	(88.3		)	(60.0		)	(51.8		)	(186.5		)	(257.7		)	(189.9		)	(163.7		)
	Net	$	13.1		$	242.5		$	19		$	107.2		$	41.4		$	638.3		$	46.9		$	431.7
	Amounts payable or recoverable for reinsurance on paid and unpaid claims are not subject to periodic or maximum limits. During the three and nine months ended June 30, 2014 and June 30, 2013, the Company did not write off any reinsurance balances. During the three and nine months ended June 30, 2014 , the Company did not commute any ceded reinsurance. Effective June 17, 2013, the Company rescinded the portion of the coinsurance agreement dated April 1, 2011 between FGL Insurance and Wilton Re which covered certain disability income riders. Wilton Re paid FGL Insurance a rescission settlement of $6.4. FGL Insurance recognized a net gain on the rescission of $1.9.
	No policies issued by the Company have been reinsured with any foreign company, which is controlled, either directly or indirectly, by a party not primarily engaged in the business of insurance.
	The Company has not entered into any reinsurance agreements in which the reinsurer may unilaterally cancel any reinsurance for reasons other than non-payment of premiums or other similar credit issues.

Related_Party_Transactions

Related Party Transactions	9 Months Ended
	Jun. 30, 2014
Related Party Transactions [Abstract]	'
Related Party Transactions	'
	Related Party Transactions
	FSRCI
	Effective December 31, 2012, FGL Insurance entered into a reinsurance treaty with FSRCI, an indirect wholly-owned subsidiary of HGI, FGL’s parent, whereby FGL ceded 10% of its June 30, 2012 in-force annuity block business not already reinsured on a funds withheld basis. Under the terms of the agreement, FSRCI paid FGL Insurance an initial ceding allowance of $15.0. A study prepared by an independent third party actuarial firm determined that the initial ceding allowance of $15.0 is a fair and reasonable valuation. The coinsurance agreement was on a funds withheld basis, meaning that funds were withheld by FGL Insurance from the coinsurance premium owed to FSRCI as collateral for FSRCI’s payment obligations. Accordingly, the collateral assets remain under the ultimate ownership of FGL Insurance.
	At June 30, 2014 and September 30, 2013, the Company's reinsurance recoverable included $1,281.7 and $1,365.0, respectively, related to FSRCI and funds withheld for reinsurance liabilities included $1,301.2 and $1,368.3, respectively, related to FSRCI.
	Below are the ceded operating results to FSRCI’s for the three and nine months ended June 30, 2014:
	Revenues:	Three months ended June 30, 2014				Nine months ended June 30, 2014
	Premiums	$	0.2			$	0.6
	Net investment income	14.1				46.3
	Net investment gains	9.8				21.1
	Insurance and investment product fees	1.2				3.6
	Total Revenues	25.3				71.6
	Benefits and expenses:
	Benefits and other changes in policy reserves	(17.5		)		(49.9		)
	Acquisition & operating expenses, net of deferrals	(1.1		)		(4.7		)
	Total benefits and expenses	(18.6		)		(54.6		)
	Operating income	$	6.7			$	17
	FGL Insurance invested in CLO securities issued by Fortress Credit Opportunities III CLO LP ("FCO III") and also invested in securities issued by Fortress Credit BSL Limited ("Fortress BSL"). The parent of both FCO III and Fortress BSL is Fortress Investment Group LLC, which has acquired interests greater than 10% ownership in HGI as of June 30, 2014.
	During the June 2014 quarter, Leucadia National Corp ("Leucadia") ownership interest in HGI's outstanding common shares exceeded 10%. As of June 30, 2014, FGL Insurance held $37.3 debt securities issued by Leucadia as well as corporate debt issued by Jefferies Group Inc. ("Jefferies"), a wholly owned subsidiary of Leucadia. Additionally, Frederick's of Hollywood became a wholly owned subsidiary of HGI during the quarter. As of June 30, 2014, FGL Insurance held loan participation interests with Fredericks of Hollywood with a carry value of $11.0.
	FGL Insurance participates in loans to third parties originated by Salus. In addition to the participation in loans originated by Salus, FGL Insurance also agreed to provide Salus with financing in the form of a revolving loan and promissory note. In January 2014, FGL Insurance acquired from FSRCI preferred equity interests in Salus which have a 10% per annum return and a total par value of $30.0. Salus is a limited liability company and considered a variable interest entity (“VIE”) as it does not have sufficient equity to finance its own activities without additional financial support and certain of its investors lack certain characteristics of a controlling financial interest. FGL Insurance does not have any voting rights or notice rights under the Salus limited liability company agreement or amendments, does not have any rights to remove the manager of Salus and was not involved in the design of Salus. Therefore, FGL Insurance lacks the ability to direct the activities of Salus and is not considered the primary beneficiary. As a result, Salus is not consolidated in the Company’s financial statements. The Company’s maximum exposure to loss as a result of its investments in Salus is limited to the carrying value of the preferred equity interests, the promissory note and any amounts owed under the revolving loan as reported in its balance sheet. The carrying value of these investments in Salus as of June 30, 2014 and September 30, 2013 are disclosed in the tables below.
	The Company’s consolidated related party investments as of June 30, 2014 and September 30, 2013, and related net investment income for the three and nine months ended June 30, 2014 and 2013 are summarized as follows:
				June 30, 2014
	Type	Balance Sheet Classification		Asset carrying value				Accrued Investment Income		Total carrying value
	Salus collateralized loan obligations	Fixed Maturities, available for  sale		$	240.3			$	0.6	$	240.9
	Fortress Investment Group collateralized loan obligations	Fixed Maturities, available for sale		106.5				0.7		107.2
	Leucadia National Corp	Fixed Maturities, available for sale		37.3				0.4		37.7
	Jefferies Group Inc	Fixed Maturities, available for sale		69				1.4		70.4
	Salus preferred equity(a)	Equity securities, available for sale		35				—		35
	Salus participations	Other Invested Assets		168.1				1.4		169.5
	Foreign exchange embedded derivative	Other Invested Assets		0.6				—		0.6
	HGI energy loan	Related Party Loans		70				—		70
	Salus 2012 participations	Related Party Loans		12.6				—		12.6
	Salus promissory note	Related Party Loans		20				0.5		20.5
	Salus revolver	Related Party Loans		10				—		10
	Frederick's of Hollywood	Related Party Loans		11				—		11
	(a) Salus preferred equity is included in the FSRCI funds withheld portfolio, accordingly all income on this asset is ceded to FSRCI.
				September 30, 2013
	Type	Balance Sheet Classification		Asset carrying value				Accrued Investment Income		Total carrying value
	Salus collateralized loan obligations	Fixed Maturities, available for sale		$	241.5			$	0.4	$	241.9
	Salus participations	Other Invested Assets		157				1.5		158.5
	HGI energy loan	Related Party Loans		70				1.6		71.6
	Salus 2012 participations	Related Party Loans		27.3				0.1		27.4
	Salus promissory note	Related Party Loans		20				—		20
				Three months ended						Nine months ended
				June 30, 2014				June 30, 2013		June 30, 2014		June 30, 2013
	Type	Investment Income Classification		Net investment income				Net investment income		Net investment income		Net investment income
	Salus collateralized loan obligations	Fixed Maturities		$	3			$	1.1	$	9.2	$	2.3
	Fortress Investment Group collateralized loan obligations	Fixed Maturities		0.9				—		0.9		—
	Leucadia National Corp	Fixed Maturities		1.3				—		1.3		—
	Jefferies Group Inc	Fixed Maturities		0.9				—		2.6		—
	Salus preferred equity	Equity securities		—				1.4		—		2.1
	Salus participations	Other Invested Assets		3.8				2.1		13.8		2.1
	HGI energy loan	Related Party Loans		1.1				2.8		3.4		3.4
	Salus 2012 participations	Related Party Loans		0.2				0.3		0.5		3.1
	Salus promissory note	Related Party Loans		0.3				0.4		1		1.1
	Salus Revolver	Related Party Loans		0.2				0.1		0.4		0.1
	The Company had realized gains of $0.6 for both the three and nine months ended, June 30, 2014 related to its foreign exchange embedded derivative included in other invested assets.
	The Company’s pre-closing and closing obligations under the F&G Stock Purchase Agreement, including payment of the purchase price, were guaranteed by the Master Fund. Pursuant to the Transfer Agreement, HGI entered into a Guaranty Indemnity Agreement (the “Guaranty Indemnity”) with the Master Fund, pursuant to which HGI agreed to indemnify the Master Fund for any losses incurred by it or its representatives in connection with the Master Fund’s guaranty of the Company’s pre-closing and closing obligations under the F&G Stock Purchase Agreement.

Earnings_Per_Share

Earnings Per Share	9 Months Ended
	Jun. 30, 2014
Earnings Per Share [Abstract]	'
Earnings Per Share	'
	Earnings Per Share
	The following table sets forth the computation of basic and diluted earnings per share (share amounts in thousands):
		Three months ended				Nine months ended
		June 30, 2014		June 30, 2013		June 30, 2014		June 30, 2013
	Net income attributable to common shares - basic	$	56.5	$	53.2	$	124	$	237
	Weighted-average common shares outstanding - basic	58,271		47,000		55,195		47,000
	Dilutive effect of unvested restricted stock and unvested performance restricted stock	167		—		113		—
	Dilutive effect of stock options	37		—		22		—
	Weighted-average shares outstanding - diluted	58,475		47,000		55,330		47,000
	Net income per common share:
	Basic	$	0.97	$	1.13	$	2.25	$	5.04
	Diluted	$	0.97	$	1.13	$	2.24	$	5.04
	The number of shares of common stock outstanding used in calculating the weighted average thereof reflects the actual number of FGL shares of common stock outstanding, excluding unvested restricted stock.

Insurance_Subsidiary_Financial

Insurance Subsidiary Financial Information and Regulatory Matters	9 Months Ended
	Jun. 30, 2014
Insurance [Abstract]	'
Insurance Disclosure	'
	Insurance Subsidiary Financial Information and Regulatory Matters
	The Company’s insurance subsidiaries file financial statements with state insurance regulatory authorities and the National Association of Insurance Commissioners (“NAIC”) that are prepared in accordance with Statutory Accounting Principles (“SAP”) prescribed or permitted by such authorities, which may vary materially from GAAP. Prescribed SAP includes the Accounting Practices and Procedures Manual of the NAIC as well as state laws, regulations and administrative rules. Permitted SAP encompasses all accounting practices not so prescribed. The principal differences between statutory financial statements and financial statements prepared in accordance with GAAP are that statutory financial statements do not reflect DAC and VOBA, some bond portfolios may be carried at amortized cost, assets and liabilities are presented net of reinsurance, contractholder liabilities are generally valued using more conservative assumptions and certain assets are non-admitted. Accordingly, statutory operating results and statutory capital and surplus may differ substantially from amounts reported in the GAAP basis financial statements for comparable items
	On November 1, 2013, FGL Insurance re-domesticated from Maryland to Iowa. After re-domestication, FGL Insurance elected to apply Iowa-prescribed accounting practices that permit Iowa-domiciled insurers to report equity call options used to economically hedge FIA index credits at amortized cost for statutory accounting purposes and to calculate FIA statutory reserves such that index credit returns will be included in the reserve only after crediting to the annuity contract. This resulted in an $11.5 increase to statutory capital and surplus at December 31, 2013. Also, the Iowa Insurance Division granted FGL Insurance a permitted statutory accounting practice to reclassify its negative unassigned surplus balance of $805.8 to additional paid in capital as of April 6, 2011, the date the Company acquired FGL Insurance, which had the effect of setting FGL Insurance’s statutory unassigned surplus to zero as of this date. The prescribed and permitted statutory accounting practice has no impact on the Company’s consolidated financial statements which are prepared in accordance with GAAP.
	FGL Insurance’s statutory carrying value of Raven Reinsurance Company ("Raven Re") reflects the effect of permitted practices Raven Re received. Raven Re is permitted to treat the available amount of a letter of credit as an admitted asset. Raven Re is also permitted to follow Iowa prescribed statutory accounting practice for its reserves on reinsurance assumed from FGL Insurance. Without such permitted statutory accounting practices Raven Re’s statutory capital and surplus would be negative and its risk-based capital would fall below the minimum regulatory requirements. As of June 30, 2014, FGL NY Insurance does not follow any prescribed or permitted statutory accounting practices that differ from the NAIC’s statutory accounting practices.
	On October 7, 2013 the New York State Department of Financial Services (“NYDFS”) announced an agreement with Philip A. Falcone, the Chairman and Chief Executive Officer of HGI (FGL’s ultimate parent company), HGI, FGLH and FGL NY Insurance that Mr. Falcone will not exercise control, within the meaning of New York insurance law, over FGL NY Insurance or any other New York-licensed insurer for seven years (the “NYDFS Commitment”). Under the NYDFS Commitment agreement, FGLH agreed to maintain FGL NY Insurance’s risk based capital ("RBC") level at no less than 225% company action level RBC ratio, and established a trust account funded with $18.5 of cash or eligible securities to support that agreement.
	In addition, in connection with its re-domestication to Iowa, FGL Insurance agreed to the conditions set by the Iowa Commissioner that neither Mr. Falcone nor any employees of Harbinger Capital Partners LLC (“HCP”) may serve as an officer or director of FGL Insurance or FGL (but FGL Insurance may request that the Iowa Insurance Division lift this restriction after five years); neither Mr. Falcone nor HCP shall be involved in making investment decisions for FGL Insurance or any funds withheld account that supports credit for reinsurance for FGL Insurance for five years; and, within three months of FGL’s IPO, FGL shall have an audit committee that complies with Iowa regulation 191-98.13(8) which requires that 75% of the audit committee’s members be independent.  FGL has complied with these requirements.

Significant_Accounting_Policie1

Significant Accounting Policies and Practices (Policies)	9 Months Ended
	Jun. 30, 2014
Accounting Policies [Abstract]	'
Principles of Consolidation	'
	Principles of Consolidation
	The accompanying unaudited condensed consolidated financial statements include the accounts of FGL and all other entities in which FGL has a controlling financial interest (none of which are variable interest entities). All intercompany accounts and transactions have been eliminated in consolidation.
Recent Accounting Pronouncements Not Yet Adopted	'
	Recent Accounting Pronouncements
	Offsetting Assets and Liabilities
	In December 2011, the Financial Accounting Standards Board (“FASB”) issued amended disclosure requirements for offsetting financial assets and financial liabilities to allow investors to better compare financial statements prepared under GAAP with financial statements prepared under International Financial Reporting Standards. The new standards are effective for the Company beginning in the first quarter of its fiscal year ending September 30, 2014. ASU 2011-11 Disclosures about Offsetting Assets and Liabilities - was adopted by the Company effective October 1, 2013. FGL does not offset any of its derivative transactions, including bifurcated embedded derivatives, in its statement of financial position. The Company only enters into purchased equity options and long futures contracts. The Company has not entered into any repurchase and reverse repurchase agreements or securities borrowing and lending transactions. Accordingly, no additional disclosures are required.
	Investments in Qualified Affordable Housing Projects
	In January 2014, the FASB issued amended guidance which allows investors in Low Income Housing Tax Credit (“LIHTC”) programs that meet specified conditions to present the net tax benefits (net of the amortization of the cost of the investment) within income tax expense. The cost of the investments that meet the specified conditions will be amortized in proportion to (and over the same period as) the total expected tax benefits, including the tax credits and other tax benefits, as they are realized on the tax return. The guidance is required to be applied retrospectively, if investors elect the proportional amortization method. However, if investors have existing LIHTC investments accounted for under the effective-yield method at adoption, they may continue to apply that method for those existing investments.  The new standards will become effective for the Company beginning in the first quarter of its fiscal year ending September 30, 2016.  The Company is currently evaluating the impact of this new accounting guidance on its consolidated financial position and results of operations.

Investments_Tables

Investments (Tables)	9 Months Ended
	Jun. 30, 2014
Investments, Debt and Equity Securities [Abstract]	'
Available-for-Sale Securities	'
	The Company’s consolidated investments at June 30, 2014 and September 30, 2013 are summarized as follows:
		June 30, 2014
		Amortized Cost			Gross Unrealized Gains			Gross Unrealized Losses			Fair Value			Carrying Value
	Available-for sale securities
	Asset-backed securities	$	1,970.70		$	17.7		$	(10.4	)	$	1,978.00		$	1,978.00
	Commercial mortgage-backed securities	585			26.3			(1.1		)	610.2			610.2
	Corporates	9,765.90			568.5			(36.6		)	10,297.80			10,297.80
	Equities	678.2			25.1			(4.9		)	698.4			698.4
	Hybrids	442			39.8			(0.2		)	481.6			481.6
	Municipals	1,151.00			111.9			(7.2		)	1,255.70			1,255.70
	Agency residential mortgage-backed securities	96.1			3.4			—			99.5			99.5
	Non-agency residential mortgage-backed securities	1,738.60			143.3			(7.8		)	1,874.10			1,874.10
	U.S. Government	404.6			7.2			(1.3		)	410.5			410.5
	Total available-for-sale securities	16,832.10			943.2			(69.5		)	17,705.80			17,705.80
	Derivative investments	165.1			160.6			(1.0		)	324.7			324.7
	Other invested assets	340.2			—			—			340.2			340.2
	Total investments	$	17,337.40		$	1,103.80		$	(70.5	)	$	18,370.70		$	18,370.70
		September 30, 2013
		Amortized Cost			Gross Unrealized Gains			Gross Unrealized Losses			Fair Value			Carrying Value
	Available-for-sale securities
	Asset-backed securities	$	1,745.20		$	24.5		$	(5.2	)	$	1,764.50		$	1,764.50
	Commercial mortgage-backed securities	431.3			24.6			(1.6		)	454.3			454.3
	Corporates	9,314.70			288.7			(185.1		)	9,418.30			9,418.30
	Equities	274.6			6.8			(10.3		)	271.1			271.1
	Hybrids	412.6			19.5			(3.3		)	428.8			428.8
	Municipals	998.8			48.9			(40.7		)	1,007.00			1,007.00
	Agency residential mortgage-backed securities	96.5			2.4			(0.3		)	98.6			98.6
	Non-agency residential mortgage-backed securities	1,304.00			77.5			(13.4		)	1,368.10			1,368.10
	U.S. Government	998.5			7.2			(3.9		)	1,001.80			1,001.80
	Total available-for-sale securities	15,576.20			500.1			(263.8		)	15,812.50			15,812.50
	Derivatives Instruments	141.7			88.5			(8.4		)	221.8			221.8
	Other invested assets	188.2			—			—			188.2			188.2
	Total investments	$	15,906.10		$	588.6		$	(272.2	)	$	16,222.50		$	16,222.50
Amortized Cost and Fair Value of Fixed Maturity Available-for-Sale Securities	'
	The amortized cost and fair value of fixed maturity available-for-sale securities by contractual maturities, as applicable, are shown below. Actual maturities may differ from contractual maturities because issuers may have the right to call or pre-pay obligations.
		June 30, 2014
		Amortized Cost			Fair Value
	Corporates, Non-structured Hybrids, Municipal and U.S. Government securities:
	Due in one year or less	$	350.2		$	353.3
	Due after one year through five years	2,297.90			2,368.30
	Due after five years through ten years	3,290.40			3,439.30
	Due after ten years	5,748.80			6,204.00
	Subtotal	11,687.30			12,364.90
	Other securities which provide for periodic payments:
	Asset-backed securities	1,970.70			1,978.00
	Commercial mortgage-backed securities	585			610.2
	Structured hybrids	76.2			80.7
	Agency residential mortgage-backed securities	96.1			99.5
	Non-agency residential mortgage-backed securities	1,738.60			1,874.10
	Total fixed maturity available-for-sale securities	$	16,153.90		$	17,007.40
Fair Value and Gross Unrealized Losses of Available-for-Sale-Securities	'
	The fair value and gross unrealized losses of available-for-sale securities, aggregated by investment category, were as follows:
		June 30, 2014
		Less than 12 months						12 months or longer						Total
		Fair Value			Gross Unrealized			Fair Value			Gross Unrealized			Fair Value		Gross Unrealized
					Losses						Losses					Losses
	Available-for-sale securities
	Asset-backed securities	$	474.2		$	(4.7	)	$	306.2		$	(5.7	)	$	780.4	$	(10.4	)
	Commercial mortgage-backed securities	52.8			(0.1		)	0.2			(1.0		)	53		(1.1		)
	Corporates	446.1			(8.0		)	1,009.20			(28.6		)	1,455.30		(36.6		)
	Equities	46			(0.2		)	80.6			(4.7		)	126.6		(4.9		)
	Hybrids	—			—			12.7			(0.2		)	12.7		(0.2		)
	Municipals	15.9			—			213.6			(7.2		)	229.5		(7.2		)
	Agency residential mortgage-backed securities	5.5			—			0.7			—			6.2		—
	Non-agency residential mortgage-backed securities	177.2			(4.1		)	139.7			(3.7		)	316.9		(7.8		)
	U.S. Government	—			—			81.7			(1.3		)	81.7		(1.3		)
	Total available-for-sale securities	$	1,217.70		$	(17.1	)	$	1,844.60		$	(52.4	)	$	3,062.30	$	(69.5	)
	Total number of available-for-sale securities in an unrealized loss position less than twelve months															178
	Total number of available-for-sale securities in an unrealized loss position twelve months or longer															250
	Total number of available-for-sale securities in an unrealized loss position															428
		September 30, 2013
		Less than 12 months						12 months or longer						Total
		Fair Value			Gross Unrealized			Fair Value			Gross Unrealized			Fair Value		Gross Unrealized
					Losses						Losses					Losses
	Available-for-sale securities
	Asset-backed securities	$	329.3		$	(4.5	)	$	81.5		$	(0.7	)	$	410.8	$	(5.2	)
	Commercial mortgage-backed securities	26.6			(0.5		)	4.8			(1.1		)	31.4		(1.6		)
	Corporates	3,457.20			(175.0		)	186			(10.1		)	3,643.20		(185.1		)
	Equities	118.6			(9.2		)	32.2			(1.1		)	150.8		(10.3		)
	Hybrids	52			(3.3		)	—			—			52		(3.3		)
	Municipals	333.3			(27.3		)	144.4			(13.4		)	477.7		(40.7		)
	Agency residential mortgage-backed securities	9.8			(0.2		)	1.1			(0.1		)	10.9		(0.3		)
	Non-agency residential mortgage-backed securities	325.2			(12.2		)	69.9			(1.2		)	395.1		(13.4		)
	U.S government	753.9			(3.9		)	—			—			753.9		(3.9		)
	Total available-for-sale securities	$	5,405.90		$	(236.1	)	$	519.9		$	(27.7	)	$	5,925.80	$	(263.8	)
	Total number of available-for-sale securities in an unrealized loss position less than twelve months															588
	Total number of available-for-sale securities in an unrealized loss position twelve months or longer															78
	Total number of available-for-sale securities in an unrealized loss position															666
Reconciliation of Other-than-Temporary Impairment on Fixed Maturity	'
	The following table provides a reconciliation of the beginning and ending balances of the credit loss portion of OTTI on fixed maturity securities held by the Company for the three and nine months ended June 30, 2014 and June 30, 2013, for which a portion of the OTTI was recognized in AOCI:
		Three months ended						Nine months ended
		June 30, 2014			June 30, 2013			June 30, 2014			June 30, 2013
	Beginning balance	$	2.7		$	2.7		$	2.7		$	2.7
	Increases attributable to credit losses on securities:
	Other-than-temporary impairment was previously recognized	—			—			—			—
	Other-than-temporary impairment was not previously recognized	—			—			—			—
	Ending balance	$	2.7		$	2.7		$	2.7		$	2.7
Other-than-Temporary Impairments	'
	Details underlying write-downs taken as a result of OTTI that were recognized in net income and included in net realized gains on securities were as follows:
		Three months ended						Nine months ended
		June 30, 2014			June 30, 2013			June 30, 2014			June 30, 2013
	OTTI recognized in net income:
	Municipals	$	0.3		$	—		$	0.3		$	—
	Non-agency residential mortgage-backed securities	—			0.2			—			1.1
	Other assets	0.3			0.5			0.3			0.5
	Total OTTI	$	0.6		$	0.7		$	0.6		$	1.6
Net Investment Income	'
	The major sources of “Net investment income” on the accompanying Condensed Consolidated Statements of Operations were as follows:
		Three months ended						Nine months ended
		June 30, 2014			June 30, 2013			June 30, 2014			June 30, 2013
	Fixed maturity available-for-sale securities	$	181.5		$	178.2		$	532.2		$	506.5
	Equity available-for-sale securities	6.9			3.3			16.2			11.5
	Related party loans	1.8			3.9			5.3			9.8
	Policy loans	0.2			—			0.5			—
	Invested cash and short-term investments	—			0.2			0.2			1.4
	Other investments	5.4			4.2			16.6			5.7
	Gross investment income	195.8			189.8			571			534.9
	Investment expense	(4.6		)	(5.2		)	(12.1		)	(12.1		)
	Net investment income	$	191.2		$	184.6		$	558.9		$	522.8
Net Investment Gains	'
	Details underlying “Net investment gains ” reported on the accompanying Condensed Consolidated Statements of Operations were as follows:
		Three months ended						Nine months ended
		June 30, 2014			June 30, 2013			June 30, 2014			June 30, 2013
	Net realized gains on fixed maturity available-for-sale securities	$	72.9		$	33.9		92.6			278.5
	Realized gains (losses) on equity securities	0.1			4.8			(1.3		)	6.7
	Net realized gains on securities	73			38.7			91.3			285.2
	Realized gains on certain derivative instruments	57.2			54			157			99.3
	Unrealized gains (losses) on certain derivative instruments	36.6			(34.1		)	73.3			27.3
	Change in fair value of reinsurance related embedded derivative	(21.2		)	—			(54.3		)	—
	Change in fair value of other embedded derivatives	0.9			—			0.9			—
	Realized gains on derivatives and embedded derivatives	73.5			19.9			176.9			126.6
	Realized gains (losses) on other invested assets	(1.5		)	(0.3		)	(1.5		)	(0.3		)
	Net investment gains	$	145		$	58.3		$	266.7		$	411.5

Derivative_Financial_Instrumen1

Derivative Financial Instruments (Tables)	9 Months Ended
	Jun. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Fair Value of Outstanding Derivative Contracts in Condensed Consolidated Balance Sheets	'
	The carrying amounts of derivative instruments, including derivative instruments embedded in FIA contracts, is as follows:
		June 30, 2014				September 30, 2013
	Assets:
	Derivative investments:
	Call options	$	324.6			$	221.8
	Futures contracts	0.1				—
	Other Invested Assets:
	Other embedded derivatives	12.2				—
	Other Assets:
	Reinsurance related embedded derivative	63.7				118
		$	400.6			$	339.8
	Liabilities:
	Contractholder funds:
	FIA embedded derivative	$	1,864.50			$	1,544.40
	Funds withheld for reinsurance liabilities
	Call options payable to FSRCI	27.1				22.8
	Other liabilities:
	Futures contracts	—				1
		$	1,891.60			$	1,568.20
Schedule of Change in Fair Value of Derivative Instruments	'
	The change in fair value of derivative instruments included in the accompanying Condensed Consolidated Statements of Operations is as follows:
		Three months ended								Nine months ended
		June 30, 2014				June 30, 2013				June 30, 2014				June 30, 2013
	Revenues:
	Net investment gains (losses):
	Call options	$	83.2			$	16.5			$	205.3			$	114.1
	Futures contracts	10.6				3.4				25				12.5
	Other embedded derivatives	0.9				—				0.9				—
	Reinsurance related embedded derivative	(21.2		)		—				(54.3		)		—
		$	73.5			$	19.9			$	176.9			$	126.6
	Benefits and other changes in policy reserves:
	FIA embedded derivatives	$	145.8			$	(53.7	)		$	320.1			$	35.1
FGL's Exposure to Credit Loss on Call Options Held	'
	Information regarding the Company’s exposure to credit loss on the call options it holds is presented in the following table:
					June 30, 2014													September 30, 2013
	Counterparty		Credit Rating		Notional				Fair Value				Collateral			Net Credit Risk		Notional		Fair Value		Collateral		Net Credit Risk
			(Fitch/Moody's/S&P) (a)		Amount													Amount
	Merrill Lynch		A/*/A		$	2,150.90			$	100.4			$	57.2		$	43.2	$	2,037.80	$	70.7	$	—	$	70.7
	Deutsche Bank		A+/A2/A		2,639.80				114.9				76.5			38.4		1,620.40		51.7		23		28.7
	Morgan Stanley		*/A3/A		2,116.60				98.1				75.6			22.5		2,264.10		75.7		49		26.7
	Royal Bank of Scotland		A-/*/A-		—				—				—			—		364.3		20.3		—		20.3
	Barclay's Bank		A/A2/A		256				11.2				—			11.2		120.8		3.4		—		3.4
					$	7,163.30			$	324.6			$	209.3		$	115.3	$	6,407.40	$	221.8	$	72	$	149.8
	(a) Credit rating as of

Fair_Value_of_Financial_Instru1

Fair Value of Financial Instruments (Tables)	9 Months Ended
	Jun. 30, 2014
Fair Value Disclosures [Abstract]	'
Assets and Liabilities Carrying at Fair Value on Recurring Basis	'
	The carrying amounts and estimated fair values of the Company’s financial instruments for which the disclosure of fair values is required, including financial assets and liabilities measured and carried at fair value on a recurring basis, with the exception of investment contracts, a portion of related party loans, portions of other invested assets and debt, are summarized according to the hierarchy previously described, as follows:
		June 30, 2014
		Level 1			Level 2				Level 3			Fair Value			Carrying Amount
	Assets
	Cash and cash equivalents	$	818.3		$	—			$	—		$	818.3		$	818.3
	Fixed maturity securities, available-for-sale:
	Asset-backed securities	—			1,935.20				42.8			1,978.00			1,978.00
	Commercial mortgage-backed securities	—			526.3				83.9			610.2			610.2
	Corporates	—			9,552.60				745.2			10,297.80			10,297.80
	Hybrids	—			481.6				—			481.6			481.6
	Municipals	—			1,219.20				36.5			1,255.70			1,255.70
	Agency residential mortgage-backed securities	—			99.5				—			99.5			99.5
	Non-agency residential mortgage-backed securities	—			1,874.10				—			1,874.10			1,874.10
	U.S. Government	209.4			201.1				—			410.5			410.5
	Equity securities available-for-sale	50			607.4				41			698.4			698.4
	Derivative financial instruments	—			324.7				—			324.7			324.7
	Reinsurance related embedded derivative, included in other assets	—			63.7				—			63.7			63.7
	Related party loans	—			—				124.1			124.1			124.1
	Other invested assets	—			0.6				339.6			340.2			340.2
	Total financial assets at fair value	$	1,077.70		$	16,886.00			$	1,413.10		$	19,376.80		$	19,376.80
	Liabilities
	Derivatives:
	FIA embedded derivatives, included in contractholder funds	$	—		$	—			$	1,864.50		$	1,864.50		$	1,864.50
	Investment contracts, included in contractholder funds	—			—				12,891.50			12,891.50			14,353.40
	Call options payable for FSRCI, included in funds withheld for reinsurance liabilities	—			27.1				—			27.1			27.1
	Debt	—			300				—			300			300
	Total financial liabilities at fair value	$	—		$	327.1			$	14,756.00		$	15,083.10		$	16,545.00
		September 30, 2013
		Level 1			Level 2				Level 3			Fair Value			Carrying Amount
	Assets
	Cash and cash equivalents	$	1,204.30		$	—			$	—		$	1,204.30		$	1,204.30
	Fixed maturity securities, available-for-sale:
	Asset-backed securities	—			1,518.10				246.4			1,764.50			1,764.50
	Commercial mortgage-backed securities	—			448.7				5.6			454.3			454.3
	Corporates	—			8,957.20				461.1			9,418.30			9,418.30
	Hybrids	—			428.8				—			428.8			428.8
	Municipals	—			1,007.00				—			1,007.00			1,007.00
	Agency residential mortgage-backed securities	—			98.6				—			98.6			98.6
	Non-agency residential mortgage-backed securities	—			1,368.10				—			1,368.10			1,368.10
	U.S. Government	790.9			210.9				—			1,001.80			1,001.80
	Equity securities available-for-sale	—			271.1				—			271.1			271.1
	Derivative financial instruments	—			221.8				—			221.8			221.8
	Reinsurance related embedded derivative, included in other assets	—			118				—			118			118
	Related party loans	—			—				119			119			119
	Other invested assets	—			—				188.2			188.2			188.2
	Total financial assets at fair value	$	1,995.20		$	14,648.30			$	1,020.30		$	17,663.80		$	17,663.80
	Liabilities
	Derivatives:
	FIA embedded derivatives, included in contractholder funds	$	—		$	—			$	1,544.40		$	1,544.40		$	1,544.40
	Derivative instruments: futures contracts	—			1				—			1			1
	Investment contracts, included in contractholder funds	—			—				12,378.60			12,378.60			13,703.80
	Call options payable for FSRCI, included in funds withheld for reinsurance liabilities	—			22.8				—			22.8			22.8
	Debt	—			300				—			300			300
	Total financial liabilities at fair value	$	—		$	323.8			$	13,923.00		$	14,246.80		$	15,572.00
Schedule of Unobservable Inputs Used for Level Three Fair Value Measurements of Financial Instruments on Recurring Basis	'
	Quantitative information regarding significant unobservable inputs used for recurring Level 3 fair value measurements of financial instruments carried at fair value as of June 30, 2014 and September 30, 2013 are as follows:
			Fair Value at							Range (Weighted average)
			June 30, 2014			Valuation Technique		Unobservable Input(s)		June 30, 2014
	Assets
	Asset-backed securities		$	42.8		Broker-quoted		Offered quotes		95.45% - 102.39% (98.84%)
	Commercial mortgage-backed securities		83.9			Broker-quoted		Offered quotes		104.00% - 121.39% (118.85%)
	Corporates		653.5			Broker-quoted		Offered quotes		61.57% - 121.00% (99.61%)
	Corporates		91.7			Matrix Pricing		Quoted prices		95.94% - 142.14% (101.73%)
	Municipals		36.5			Broker-quoted		Offered quotes		-116.55%
	Equity securities available-for-sale		6			Broker-quoted		Offered quotes		100.00%
	Equity securities available-for-sale		35			Market-approach		Yield		8.08% - 9.58%
	Other invested assets:
	Available-for-sale embedded derivative		11.6			Black Scholes model		Net asset value of AnchorPath fund		100.00%
	Salus participations, included in other invested assets		168.1			Market Pricing		Offered quotes		100.00%
	Total		$	1,129.10
	Liabilities
	Derivatives:
	FIA embedded derivatives, included in contractholder funds		$	1,864.50		Discounted cash flow		Market value of option		0% - 48.16% (3.95%)
								SWAP rates		1.70% - 2.63% (2.17%)
								Mortality multiplier		80%
								Surrender rates		0.50% - 75.00% (7.00%)
								Non-performance spread		0.25%
	Total liabilities at fair value		$	1,864.50
			Fair Value at							Range (Weighted average)
			September 30, 2013			Valuation Technique		Unobservable Input(s)		30-Sep-13
	Assets
	Asset-backed securities		$	246.5		Broker-quoted		Offered quotes		100.00% - 107.25% (100.91%)
	Commercial mortgage-backed securities		5.6			Broker-quoted		Offered quotes		95.50%
	Corporates		404.5			Broker-quoted		Offered quotes		0.00% - 113.00% (90.45%)
	Corporates		56.6			Market Pricing		Quoted prices		90.06% - 130.92% (97.19%)
	Salus participations, included in other invested assets		157			Market Pricing		Offered quotes		100.00%
	Total		$	870.2
	Liabilities
	Derivatives:
	FIA embedded derivatives, included in contractholder funds		$	1,544.40		Discounted cash flow		Market value of option		0% - 38.24% (3.82%)
								SWAP rates		1.54% - 2.77% (2.16%)
								Mortality multiplier		80%
								Surrender rates		0.50% - 75% (7%)
								Non-performance spread		0.25%
	Total liabilities at fair value		$	1,544.40
Changes in Fair Value of Financial Instruments	'
	Changes in unrealized losses (gains), net in the Company’s FIA embedded derivatives are included in "Benefits and other changes in policy reserves" in the Condensed Consolidated Statements of Operations.
	The following tables summarize changes to the Company’s financial instruments carried at fair value and classified within Level 3 of the fair value hierarchy for the three and nine months ended June 30, 2014 and June 30, 2013 respectively. This summary excludes any impact of amortization of VOBA and DAC. The gains and losses below may include changes in fair value due in part to observable inputs that are a component of the valuation methodology.
		Three months ended June 30, 2014
		Balance at Beginning			Total Gains (Losses)							Net Purchases, Sales, & Settlements			Net transfer In (Out) of			Balance at End of
		of Period			Included in				Included in						Level 3 (a)			Period
					Earnings				AOCI
	Assets
	Fixed maturity securities available-for-sale:
	Asset-backed securities	$	47.4		$	—			$	0.2		$	—		$	(4.8	)	$	42.8
	Commercial mortgage-backed securities	—			—				0.1			83.8			—			83.9
	Corporates	657			—				14.4			87.9			(14.1		)	745.2
	Municipals	35.6			—				0.9			—			—			36.5
	Equity securities available-for-sale	33.4			—				2.1			5.5			—			41
	Other invested assets:
	Available-for-sale embedded derivative	—			0.3				—			11.3			—			11.6
	Salus participations, included in other invested assets	193.4			—				—			(25.3		)	—			168.1
	Total assets at Level 3 fair value	$	966.8		$	0.3			$	17.7		$	163.2		$	(18.9	)	$	1,129.10
	Liabilities
	FIA embedded derivatives, included in contractholder funds	$	1,718.70		$	145.8			$	—		$	—		$	—		$	1,864.50
	Total liabilities at Level 3 fair value	$	1,718.70		$	145.8			$	—		$	—		$	—		$	1,864.50
	(a) The net transfers out of Level 3 during the three months ended June 30, 2014 were exclusively to Level 2.
		Nine months ended June 30, 2014
		Balance at Beginning			Total Gains (Losses)							Net Purchases, Sales, & Settlements			Net transfer In (Out) of			Balance at End of
		of Period			Included in				Included in						Level 3 (a)			Period
					Earnings				AOCI
	Assets
	Fixed maturity securities available-for-sale:
	Asset-backed securities	$	246.5		$	—			$	(1.2	)	$	5		$	(207.5	)	$	42.8
	Commercial mortgage-backed securities	5.6			—				0.5			83.8			(6.0		)	83.9
	Corporates	461.1			—				18.4			279.8			(14.1		)	745.2
	Municipals	—			—				1.5			35			—			36.5
	Equity securities available-for-sale	—			—				2.1			38.9			—			41
	Other invested assets:
	Available-for-sale embedded derivative	—			0.3				—			11.3			—			11.6
	Salus participations, included in other invested assets	157			—				—			11.1			—			168.1
	Total assets at Level 3 fair value	$	870.2		$	0.3			$	21.3		$	464.9		$	(227.6	)	$	1,129.10
	Liabilities
	FIA embedded derivatives, included in contractholder funds	$	1,544.40		$	320.1			$	—		$	—		$	—		$	1,864.50
	Total liabilities at Level 3 fair value	$	1,544.40		$	320.1			$	—		$	—		$	—		$	1,864.50
	(a) The net transfers out of Level 3 during the nine months ended June 30, 2014 were exclusively to Level 2. There was a $6.0 transfer within the Level 3 asset class from commercial mortgage-backed securities to asset-backed securities
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases Sales Issuances Settlements Table	'
	The following tables present the gross components of purchases, sales, and settlements, net, of Level 3 financial instruments for the three and nine months ended June 30, 2014 and June 30, 2013, respectively. There were no issuances during these periods.
		Three months ended June 30, 2014
		Purchases			Sales				Settlements			Net Purchases, Sales, & Settlements
	Assets
	Fixed maturity securities available-for-sale:
	Commercial mortgage-backed securities	$	83.8		$	—			$	—		$	83.8
	Corporates	88.9			(1.0		)		—			87.9
	Equity securities available-for-sale	5.5			—				—			5.5
	Other invested assets:
	Available-for-sale embedded derivative	11.3			—				—			11.3
	Salus participations, included in other invested assets	4.1			—				(29.4		)	(25.3		)
	Total assets at fair value	$	193.6		$	(1.0	)		$	(29.4	)	$	163.2
		Nine months ended June 30, 2014
		Purchases			Sales				Settlements			Net Purchases, Sales, & Settlements
	Assets
	Fixed maturity securities available-for-sale:
	Asset-backed securities	$	5		$	—			$	—		$	5
	Commercial mortgage-backed securities	83.8			—				—			83.8
	Corporates	283.2			(1.0		)		(2.4		)	279.8
	Equity securities available-for-sale	38.9			—				—			38.9
	Municipal	35			—				—			35
	Other invested assets
	Available-for-sale embedded derivative	11.3			—				—			11.3
	Salus participations, included in other invested assets	109.1			—				(98.0		)	11.1
	Total assets at fair value	$	566.3		$	(1.0	)		$	(100.4	)	$	464.9
		Three months ended June 30, 2013
		Purchases			Sales				Settlements			Net Purchases, Sales, & Settlements
	Assets
	Fixed maturity securities available-for-sale:
	Asset-backed securities	$	117.5		$	—			$	(0.1	)	$	117.4
	Corporates	102.7			—				(8.2		)	94.5
	Equity securities available-for-sale	0.1			—				—			0.1
	Other invested assets	147			—				—			147
	Total assets at fair value	$	367.3		$	—			$	(8.3	)	$	359
		Nine months ended June 30, 2013
		Purchases			Sales				Settlements			Net Purchases, Sales, & Settlements
	Assets
	Fixed maturity securities available-for-sale:
	Asset-backed securities	$	117.5		$	—			$	(0.1	)	$	117.4
	Commercial mortgage-backed securities	1			—				—			1
	Corporates	380.1			(9.6		)		(21.9		)	348.6
	Equity securities available-for-sale	10.1			—				—			10.1
	Other invested assets	162.2			—				—			162.2
	Total assets at fair value	$	670.9		$	(9.6	)		$	(22.0	)	$	639.3

Intangibles_Assets_Tables

Intangibles Assets (Tables)	9 Months Ended
	Jun. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Summary of Definite Lived Intangible Assets	'
	Information regarding VOBA and DAC which includes deferred sales inducement, is as follows:
		VOBA			DAC			Total
	Balance at September 30, 2012	$	104.3		$	169.2		$	273.5
	Deferrals	—			109.2			109.2
	Less: Amortization related to:
	Unlocking	22.6			4.8			27.4
	Interest	16.2			7.1			23.3
	Periodic amortization	(151.8		)	(62.0		)	(213.8		)
	Add: Adjustment for unrealized investment gains/losses	211.3			49.6			260.9
	Balance at June 30, 2013	$	202.6		$	277.9		$	480.5
		VOBA			DAC			Total
	Balance at September 30, 2013	$	225.3		$	338.5		$	563.8
	Deferrals	—			172.5			172.5
	Less: Amortization related to:
	Unlocking	21.8			3.4			25.2
	Interest	11			10.1			21.1
	Periodic amortization	(59.3		)	(35.9		)	(95.2		)
	Add: Adjustment for unrealized investment gains/losses	(108.2		)	(83.0		)	(191.2		)
	Balance at June 30, 2014	$	90.6		$	405.6		$	496.2
Estimated Amortization Expense for VOBA and DAC in Future Fiscal Periods	'
	Estimated amortization expense for VOBA in future fiscal periods is as follows:
		Estimated Amortization Expense
	Fiscal Year	VOBA
	2014	$	8.2
	2015	43.4
	2016	39.6
	2017	32.7
	2018	26.6
	Thereafter	129.7

Stock_Compensation_Tables

Stock Compensation (Tables)	9 Months Ended
	Jun. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan	'
	The Company recognized total stock compensation expense related to the FGL Plans and FGLH Plans as follows:
			Three months ended							Nine months ended
			30-Jun-14				30-Jun-13			30-Jun-14		30-Jun-13
	FGL Plans
	Stock options		$	0.1			$	—		$	0.2	$	—
	Restricted shares		0.1				—			0.4		—
	Performance restricted stock units		(0.1		)		—			0.7		—
	Unrestricted shares		—				—			1		—
			0.1				—			2.3		—
	FGLH Plans
	Stock Incentive Plan - stock options		1.1				1			7		1.9
	2011 DEP		—				0.2			0.6		0.6
	Amended and Restated Stock Incentive Plan - stock options		0.9				0.2			5.9		0.2
	Amended and Restated Stock Incentive Plan - restricted stock units		0.3				0.2			1.4		0.4
	2012 DEP		0.1				0.2			0.3		0.4
			2.4				1.8			15.2		3.5
	Total stock compensation expense		2.5				1.8			17.5		3.5
	Related tax benefit		0.9				0.6			6.1		1.2
	Net stock compensation expense		$	1.6			$	1.2		$	11.4	$	2.3
Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan, Unrecognized	'
	Total compensation expense related to the FGL Plans and FGLH Plans not yet recognized as of June 30, 2014 and the weighted-average period over which this expense will be recognized are as follows:
			Unrecognized Compensation				Weighted Average Recognition
			Expense				Period in Years
	FGL Plans
	Stock options		$	0.7			2.7
	Restricted shares		2.3				2.7
	Performance restricted stock units		8.8				2.5
	Unrestricted shares		—				N/A
			11.8
	FGLH Plans
	Stock Incentive Plan		1				0.3
	2011 DEP		—				0
	Amended and Restated Stock Incentive Plan - stock options		3.2				1.5
	Amended and Restated Stock Incentive Plan - restricted stock units		2				1.5
	2012 DEP		0.8				1.8
			7
	Total unrecognized stock compensation expense		$	18.8			2.1
FGL Plan	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Summary of Stock Options Outstanding and Related Activity	'
	A summary of FGL’s outstanding stock options as of June 30, 2014, and related activity during the three month period, is as follows (share amount in thousands):
	Stock Option Awards		Options			Weighted Average			Weighted Average Grant
						Exercise Price			Date Fair Value
	Stock options outstanding at September 30, 2013		—			$	—		$	—
	Granted		249			17			3.76
	Exercised		—			—			—
	Forfeited or expired		(4	)					5.26
	Stock options outstanding at June 30, 2014		245			17			3.73
	Exercisable at June 30, 2014		—
	Vested or expected to vest at June 30, 2014		241			17			3.7
Assumptions Used in Determination of Grant Date Fair Values Using Black-Scholes Option Pricing Model	'
	The following assumptions were used in the determination of these grant date fair values using the Black-Scholes option pricing model and based on the value of FGL's common stock:
		2014
	Risk-free interest rate	1.40%
	Assumed dividend yield	1.50%
	Expected option term	4.5 years
	Volatility	25%
Summary of Restricted Stock and Restricted Stock Units Outstanding and Related Activity	'
	A summary of FGL’s restricted shares outstanding as of June 30, 2014, and related activity during the nine months then ended, are as follows (share amount in thousands):
	Restricted Stock Awards		Shares			Weighted Average Grant
						Date Fair Value
	Restricted shares outstanding at September 30, 2013		—			$	—
	Granted		171			18.11
	Forfeited or expired		(5	)		19.98
	Restricted shares outstanding at June 30, 2014		166			18.06
	Exercisable at June 30, 2014		—			—
	Vested or expected to vest at June 30, 2014		162			18
Schedule of Nonvested Performance-based Units Activity	'
	A summary of PRSUs outstanding as of June 30, 2014, and related activity during the nine months then ended, is as follows (share amount in thousands):
	Performance Restricted Stock Units (PRSUs)		Shares			Weighted Average Grant
						Date Fair Value
	PRSUs outstanding at September 30, 2013		—			$	—
	Granted		541			17.37
	Forfeited or expired		—			—
	PRSUs outstanding at June 30, 2014		541			17.37
	Exercisable at June 30, 2014		—
	Vested or expected to vest at June 30, 2014		541			17.37
FGLH Plan	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Summary of Stock Options Outstanding and Related Activity	'
	A summary of FGLH's outstanding stock options as of June 30, 2014 and changes during the nine months then ended are as follows (share amount in thousands):
			FGLH
	Stock Option Awards		Options			Weighted Average
						Exercise Price (a)
	Stock options outstanding at September 30, 2013		335			$	44.23
	Granted		—			—
	Exercised		(41	)		41.23
	Forfeited or expired		(3	)		47.06
	Stock options outstanding at June 30, 2014		291			44.62
	Exercisable at June 30, 2014		132			42.33
	Vested or expected to vest at June 30, 2014		284			44.57
	(a)	The exercise price is based on the value of FGLH’s common stock, not the value of the Company’s common stock. The fair value of FGLH stock at June 30, 2014 is $110.74.
Summary of Restricted Stock and Restricted Stock Units Outstanding and Related Activity	'
	A summary of FGLH's restricted stock units outstanding as of June 30, 2014 and related activity during the nine months then ended is as follows (share amount in thousands):
	Restricted Stock Awards		Shares			Weighted Average Grant
						Date Fair Value (a)
	Restricted shares outstanding at September 30, 2013		46			$	49.6
	Granted		—			—
	Exercised		(18	)		49.53
	Forfeited or expired		(1	)		49.45
	Restricted shares outstanding at June 30, 2014		27			49.55
	Exercisable at June 30, 2014		—
	Restricted stock vested or expected to vest at June 30, 2014		25			49.55
	(a)	Fair value is based on the value of FGLH’s common stock, not the value of the Company’s common stock.

Reinsurance_Tables

Reinsurance (Tables)	9 Months Ended
	Jun. 30, 2014
Reinsurance Disclosures [Abstract]	'
Effect of Reinsurance on Premiums Earned, Benefits Incurred and Reserve Changes	'
	The effect of reinsurance on premiums earned, benefits incurred and reserve changes for the three and nine months ended June 30, 2014 and June 30, 2013 were as follows:
		Three months ended												Nine months ended
		June 30, 2014						June 30, 2013						June 30, 2014						June 30, 2013
		Net Premiums Earned			Net Benefits Incurred			Net Premiums Earned			Net Benefits Incurred			Net Premiums Earned			Net Benefits Incurred			Net Premiums Earned			Net Benefits Incurred
	Direct	$	65.6		$	324.1		$	69.9		$	150.8		$	200.3		$	876.9		$	212.3		$	579.7
	Assumed	8.8			6.7			9.1			8.2			27.6			19.1			24.5			15.7
	Ceded	(61.3		)	(88.3		)	(60.0		)	(51.8		)	(186.5		)	(257.7		)	(189.9		)	(163.7		)
	Net	$	13.1		$	242.5		$	19		$	107.2		$	41.4		$	638.3		$	46.9		$	431.7

Related_Party_Transactions_Tab

Related Party Transactions (Tables)	9 Months Ended
	Jun. 30, 2014
Front Street RE (Cayman) Ltd.	'
Related Party Transaction [Line Items]	'
Schedule of Related Party Transactions	'
	Below are the ceded operating results to FSRCI’s for the three and nine months ended June 30, 2014:
	Revenues:	Three months ended June 30, 2014				Nine months ended June 30, 2014
	Premiums	$	0.2			$	0.6
	Net investment income	14.1				46.3
	Net investment gains	9.8				21.1
	Insurance and investment product fees	1.2				3.6
	Total Revenues	25.3				71.6
	Benefits and expenses:
	Benefits and other changes in policy reserves	(17.5		)		(49.9		)
	Acquisition & operating expenses, net of deferrals	(1.1		)		(4.7		)
	Total benefits and expenses	(18.6		)		(54.6		)
	Operating income	$	6.7			$	17
Salus Capital Partners LLC	'
Related Party Transaction [Line Items]	'
Schedule of Related Party Transactions	'
	The Company’s consolidated related party investments as of June 30, 2014 and September 30, 2013, and related net investment income for the three and nine months ended June 30, 2014 and 2013 are summarized as follows:
				June 30, 2014
	Type	Balance Sheet Classification		Asset carrying value				Accrued Investment Income		Total carrying value
	Salus collateralized loan obligations	Fixed Maturities, available for  sale		$	240.3			$	0.6	$	240.9
	Fortress Investment Group collateralized loan obligations	Fixed Maturities, available for sale		106.5				0.7		107.2
	Leucadia National Corp	Fixed Maturities, available for sale		37.3				0.4		37.7
	Jefferies Group Inc	Fixed Maturities, available for sale		69				1.4		70.4
	Salus preferred equity(a)	Equity securities, available for sale		35				—		35
	Salus participations	Other Invested Assets		168.1				1.4		169.5
	Foreign exchange embedded derivative	Other Invested Assets		0.6				—		0.6
	HGI energy loan	Related Party Loans		70				—		70
	Salus 2012 participations	Related Party Loans		12.6				—		12.6
	Salus promissory note	Related Party Loans		20				0.5		20.5
	Salus revolver	Related Party Loans		10				—		10
	Frederick's of Hollywood	Related Party Loans		11				—		11
	(a) Salus preferred equity is included in the FSRCI funds withheld portfolio, accordingly all income on this asset is ceded to FSRCI.
				September 30, 2013
	Type	Balance Sheet Classification		Asset carrying value				Accrued Investment Income		Total carrying value
	Salus collateralized loan obligations	Fixed Maturities, available for sale		$	241.5			$	0.4	$	241.9
	Salus participations	Other Invested Assets		157				1.5		158.5
	HGI energy loan	Related Party Loans		70				1.6		71.6
	Salus 2012 participations	Related Party Loans		27.3				0.1		27.4
	Salus promissory note	Related Party Loans		20				—		20
				Three months ended						Nine months ended
				June 30, 2014				June 30, 2013		June 30, 2014		June 30, 2013
	Type	Investment Income Classification		Net investment income				Net investment income		Net investment income		Net investment income
	Salus collateralized loan obligations	Fixed Maturities		$	3			$	1.1	$	9.2	$	2.3
	Fortress Investment Group collateralized loan obligations	Fixed Maturities		0.9				—		0.9		—
	Leucadia National Corp	Fixed Maturities		1.3				—		1.3		—
	Jefferies Group Inc	Fixed Maturities		0.9				—		2.6		—
	Salus preferred equity	Equity securities		—				1.4		—		2.1
	Salus participations	Other Invested Assets		3.8				2.1		13.8		2.1
	HGI energy loan	Related Party Loans		1.1				2.8		3.4		3.4
	Salus 2012 participations	Related Party Loans		0.2				0.3		0.5		3.1
	Salus promissory note	Related Party Loans		0.3				0.4		1		1.1
	Salus Revolver	Related Party Loans		0.2				0.1		0.4		0.1

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	9 Months Ended
	Jun. 30, 2014
Earnings Per Share [Abstract]	'
Summary of Basic and Diluted EPS	'
	The following table sets forth the computation of basic and diluted earnings per share (share amounts in thousands):
		Three months ended				Nine months ended
		June 30, 2014		June 30, 2013		June 30, 2014		June 30, 2013
	Net income attributable to common shares - basic	$	56.5	$	53.2	$	124	$	237
	Weighted-average common shares outstanding - basic	58,271		47,000		55,195		47,000
	Dilutive effect of unvested restricted stock and unvested performance restricted stock	167		—		113		—
	Dilutive effect of stock options	37		—		22		—
	Weighted-average shares outstanding - diluted	58,475		47,000		55,330		47,000
	Net income per common share:
	Basic	$	0.97	$	1.13	$	2.25	$	5.04
	Diluted	$	0.97	$	1.13	$	2.24	$	5.04

Basis_of_Presentation_and_Natu1

Basis of Presentation and Nature of Business - Narrative (Details) (USD $)	3 Months Ended	9 Months Ended
In Millions, except Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2014
Related Party Transaction [Line Items]	'	'
Shareholders' disclosure, common stock (in shares)	47,000,000	47,000,000
Shareholders' disclosure, ownership percentage	80.40%	80.40%
HGI Real Estate, LLC and FS Holdco Ltd	'	'
Related Party Transaction [Line Items]	'	'
Related Party Transaction, Ceded in-force Annuity Block, Premium Earned, Net	($7.30)	$10.10

Significant_Accounting_Policie2

Significant Accounting Policies and Practices - Narrative (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Jun. 30, 2014
Accounting Policies [Abstract]	'	'
Released of valuation allowance	$35	'
Valuation allowance	'	120.4
Deferred gross tax assets	'	$215.70

Significant_Risks_and_Uncertai1

Significant Risks and Uncertainties (Details) (USD $)	Jun. 30, 2014	Sep. 30, 2013	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2014	Sep. 30, 2013	Jun. 30, 2014	Sep. 30, 2013
In Millions, unless otherwise specified	Insurers	Insurers	Wilton Reassurance Company	Front Street RE (Cayman) Ltd.	All Financial Instruments	All Financial Instruments	Single Issuer	Single Issuer
					Insurers
Concentration Risk [Line Items]	'	'	'	'	'	'	'	'
FGL's investment securities in the banking industry	$189.10	$788.70	'	'	$2,175.40	$1,892.10	$189.10	$150.70
Exposure of FGL's invested assets	'	4.90%	'	'	11.80%	11.70%	1.00%	0.90%
Number of issuers in investment	1	6	'	'	84	'	'	'
Percentage of total holdings in industry	'	'	'	'	40.00%	'	'	'
Net amount recoverable	'	'	$1,360.60	$1,281.70	'	'	'	'

Investments_Additional_Informa

Investments - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Sep. 30, 2013
Schedule of Available-for-sale Securities [Line Items]	'	'	'	'	'
Available For Sale Securities In A Continuous Unrealized Loss Position 12 Months Or Longer Aggregate Losses Accumulated in Investments	$52.40	'	$52.40	'	$27.70
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged	593.6	'	593.6	'	604.9
Other than temporary impairment credit losses recognized in earnings additions other	0.6	0.7	0.6	1.6	'
Credit losses in operations, including credit impairments	'	0.5	'	0.8	'
Credit losses in operations, change of intent operations	'	0.2	'	0.8	'
Amortized cost on other-than temporary impairments	0	4	0	4	'
Fair value on other than temporary impairments	0	2.4	0	2.4	'
Non-agency residential mortgage-backed securities	'	'	'	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'	'	'	'
Available For Sale Securities In A Continuous Unrealized Loss Position 12 Months Or Longer Aggregate Losses Accumulated in Investments	3.7	'	3.7	'	1.2
Unrealized gains included in AOCI related to the non-credit portion of other than-temporary impairments on non-agency residential-mortgage-backed securities	0.9	'	0.9	'	'
Unrealized losses included in AOCI related to the non-credit portion of other than-temporary impairments on non-agency residential-mortgage-backed securities	'	'	'	'	-1.9
Other Marketable Securities, Current	14,795.60	'	14,795.60	'	19.4
Agency residential mortgage-backed securities	'	'	'	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'	'	'	'
Available For Sale Securities In A Continuous Unrealized Loss Position 12 Months Or Longer Aggregate Losses Accumulated in Investments	'	'	'	'	0.1
Insurance and Financial Services	'	'	'	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'	'	'	'
Fair value on securities	0.2	'	0.2	'	60.9
Percentage of amortized cost	'	'	20.00%	'	'
Percentage of carrying values of all investments (less than 1%)	'	'	1.00%	'	'
Available-for-sale Securities	'	'	'	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'	'	'	'
Proceeds from Sale, Maturity and Collection of Investments	1,724.60	1,252.40	4,352.50	6,990.70	'
Gain on Sale of Investments	74.6	35	96.8	284	'
Loss on Sale of Investments	1.7	0.4	4.2	1	'
Maximum | Agency residential mortgage-backed securities	'	'	'	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'	'	'	'
Available For Sale Securities In A Continuous Unrealized Loss Position 12 Months Or Longer Aggregate Losses Accumulated in Investments	$0.10	'	$0.10	'	'

Investments_AvailableforSale_S

Investments - Available-for-Sale Securities Table (Detail) (USD $)	Jun. 30, 2014	Sep. 30, 2013
In Millions, unless otherwise specified
Schedule of Investments [Line Items]	'	'
Investment, Carrying Value	$18,370.70	$16,222.50
Derivative Investments, Fair Value	400.6	339.8
Derivative Investments, Carrying Value	324.7	221.8
Total Investments, Cost or Amortized Cost	17,337.40	15,906.10
Total Investments, Gross Unrealized Gains	1,103.80	588.6
Total Investments, Gross Unrealized Losses	-70.5	-272.2
Total Investment, Fair Value	18,370.70	16,222.50
Fixed Maturities Available For Sale	'	'
Schedule of Investments [Line Items]	'	'
Investment, Cost or Amortized Cost	16,832.10	15,576.20
Gross Unrealized Gains	943.2	500.1
Gross Unrealized Losses	-69.5	-263.8
Investment, Fair Value	17,705.80	15,812.50
Investment, Carrying Value	17,705.80	15,812.50
Fixed Maturities Available For Sale | Asset-backed securities	'	'
Schedule of Investments [Line Items]	'	'
Investment, Cost or Amortized Cost	1,970.70	1,745.20
Gross Unrealized Gains	17.7	24.5
Gross Unrealized Losses	-10.4	-5.2
Investment, Fair Value	1,978	1,764.50
Investment, Carrying Value	1,978	1,764.50
Fixed Maturities Available For Sale | Commercial mortgage-backed securities	'	'
Schedule of Investments [Line Items]	'	'
Investment, Cost or Amortized Cost	585	431.3
Gross Unrealized Gains	26.3	24.6
Gross Unrealized Losses	-1.1	-1.6
Investment, Fair Value	610.2	454.3
Investment, Carrying Value	610.2	454.3
Fixed Maturities Available For Sale | Corporates	'	'
Schedule of Investments [Line Items]	'	'
Investment, Cost or Amortized Cost	9,765.90	9,314.70
Gross Unrealized Gains	568.5	288.7
Gross Unrealized Losses	-36.6	-185.1
Investment, Fair Value	10,297.80	9,418.30
Investment, Carrying Value	10,297.80	9,418.30
Fixed Maturities Available For Sale | Hybrids	'	'
Schedule of Investments [Line Items]	'	'
Investment, Cost or Amortized Cost	442	412.6
Gross Unrealized Gains	39.8	19.5
Gross Unrealized Losses	-0.2	-3.3
Investment, Fair Value	481.6	428.8
Investment, Carrying Value	481.6	428.8
Fixed Maturities Available For Sale | Municipals	'	'
Schedule of Investments [Line Items]	'	'
Investment, Cost or Amortized Cost	1,151	998.8
Gross Unrealized Gains	111.9	48.9
Gross Unrealized Losses	-7.2	-40.7
Investment, Fair Value	1,255.70	1,007
Investment, Carrying Value	1,255.70	1,007
Fixed Maturities Available For Sale | Agency residential mortgage-backed securities	'	'
Schedule of Investments [Line Items]	'	'
Investment, Cost or Amortized Cost	96.1	96.5
Gross Unrealized Gains	3.4	2.4
Gross Unrealized Losses	'	-0.3
Investment, Fair Value	99.5	98.6
Investment, Carrying Value	99.5	98.6
Fixed Maturities Available For Sale | Non-agency residential mortgage-backed securities	'	'
Schedule of Investments [Line Items]	'	'
Investment, Cost or Amortized Cost	1,738.60	1,304
Gross Unrealized Gains	143.3	77.5
Gross Unrealized Losses	-7.8	-13.4
Investment, Fair Value	1,874.10	1,368.10
Investment, Carrying Value	1,874.10	1,368.10
Fixed Maturities Available For Sale | U.S. Government securities	'	'
Schedule of Investments [Line Items]	'	'
Investment, Cost or Amortized Cost	404.6	998.5
Gross Unrealized Gains	7.2	7.2
Gross Unrealized Losses	-1.3	-3.9
Investment, Fair Value	410.5	1,001.80
Investment, Carrying Value	410.5	1,001.80
Other Investments Asset | Policy loans and other invested assets	'	'
Schedule of Investments [Line Items]	'	'
Investment, Cost or Amortized Cost	340.2	188.2
Gross Unrealized Gains	0	'
Gross Unrealized Losses	0	0
Investment, Fair Value	340.2	188.2
Investment, Carrying Value	340.2	188.2
Equity Securities Available For Sale | Equity Securities	'	'
Schedule of Investments [Line Items]	'	'
Investment, Cost or Amortized Cost	678.2	274.6
Gross Unrealized Gains	25.1	6.8
Gross Unrealized Losses	-4.9	-10.3
Investment, Fair Value	698.4	271.1
Investment, Carrying Value	698.4	271.1
Derivative Instruments	'	'
Schedule of Investments [Line Items]	'	'
Derivative Investments, Cost or Amortized Cost	165.1	141.7
Derivative Investments, Gross Unrealized Gains	160.6	88.5
Derivative Investments, Gross Unrealized Losses	-1	-8.4
Derivative Investments, Fair Value	324.7	221.8
Derivative Investments, Carrying Value	$324.70	$221.80

Investments_Amortized_Cost_and

Investments - Amortized Cost and Fair Value of Fixed Maturity Available-for-Sale Securities (Detail) (USD $)	Jun. 30, 2014
In Millions, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'
Total fixed maturity available-for-sale securities, Amortized Cost	$16,153.90
Total fixed maturity available-for-sale securities, Fair Value	17,007.40
Asset-backed securities	'
Schedule of Available-for-sale Securities [Line Items]	'
Other securities which provide for periodic payments, Amortized Cost	1,970.70
Other securities which provide for periodic payments, Fair Value	1,978
Commercial mortgage-backed securities	'
Schedule of Available-for-sale Securities [Line Items]	'
Other securities which provide for periodic payments, Amortized Cost	585
Other securities which provide for periodic payments, Fair Value	610.2
Structured hybrids	'
Schedule of Available-for-sale Securities [Line Items]	'
Other securities which provide for periodic payments, Amortized Cost	76.2
Other securities which provide for periodic payments, Fair Value	80.7
Agency residential mortgage-backed securities	'
Schedule of Available-for-sale Securities [Line Items]	'
Other securities which provide for periodic payments, Amortized Cost	96.1
Other securities which provide for periodic payments, Fair Value	99.5
Non-agency residential mortgage-backed securities	'
Schedule of Available-for-sale Securities [Line Items]	'
Other securities which provide for periodic payments, Amortized Cost	1,738.60
Other securities which provide for periodic payments, Fair Value	1,874.10
Non-structured Hybrids | Corporate | Municipal | U.S. Government securities	'
Schedule of Available-for-sale Securities [Line Items]	'
Due in one year or less, Amortized Cost	350.2
Due after one year through five years, Amortized Cost	2,297.90
Due after five years through ten years, Amortized Cost	3,290.40
Due after ten years, Amortized Cost	5,748.80
Subtotal, Amortized Cost	11,687.30
Due in one year or less, Fair Value	353.3
Due after one year through five years, Fair Value	2,368.30
Due after five years through ten years, Fair Value	3,439.30
Due after ten years, Fair Value	6,204
Subtotal, Fair Value	$12,364.90

Investments_Fair_Value_and_Gro

Investments - Fair Value and Gross Unrealized Losses of Available-for-Sale Securities (Detail) (USD $)	Jun. 30, 2014	Sep. 30, 2013
In Millions, unless otherwise specified	Security	Security
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale securities, Fair Value, Less than 12 months	$1,217.70	$5,405.90
Available For Sale Securities In A Continuous Unrealized Loss Position Less Than 12 Months Aggregate Losses	-17.1	-236.1
Available-for-sale securities, Fair Value, 12 months or longer	1,844.60	519.9
Available-for-sale Securities, Gross Unrealized Losses, 12 months or longer	-52.4	-27.7
Available-for-sale securities, Fair Value, Total	3,062.30	5,925.80
Available-for-sale Securities, Gross Unrealized Losses, Total	-69.5	-263.8
Total number of available-for-sale securities in an unrealized loss position, Less than 12 months	178	588
Total number of available-for-sale securities in an unrealized loss position, 12 months or longer	250	78
Total number of available-for-sale securities in an unrealized loss position	428	666
Asset-backed securities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale securities, Fair Value, Less than 12 months	474.2	329.3
Available For Sale Securities In A Continuous Unrealized Loss Position Less Than 12 Months Aggregate Losses	-4.7	-4.5
Available-for-sale securities, Fair Value, 12 months or longer	306.2	81.5
Available-for-sale Securities, Gross Unrealized Losses, 12 months or longer	-5.7	-0.7
Available-for-sale securities, Fair Value, Total	780.4	410.8
Available-for-sale Securities, Gross Unrealized Losses, Total	-10.4	-5.2
Commercial mortgage-backed securities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale securities, Fair Value, Less than 12 months	52.8	26.6
Available For Sale Securities In A Continuous Unrealized Loss Position Less Than 12 Months Aggregate Losses	-0.1	-0.5
Available-for-sale securities, Fair Value, 12 months or longer	0.2	4.8
Available-for-sale Securities, Gross Unrealized Losses, 12 months or longer	-1	-1.1
Available-for-sale securities, Fair Value, Total	53	31.4
Available-for-sale Securities, Gross Unrealized Losses, Total	-1.1	-1.6
Corporates	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale securities, Fair Value, Less than 12 months	446.1	3,457.20
Available For Sale Securities In A Continuous Unrealized Loss Position Less Than 12 Months Aggregate Losses	-8	-175
Available-for-sale securities, Fair Value, 12 months or longer	1,009.20	186
Available-for-sale Securities, Gross Unrealized Losses, 12 months or longer	-28.6	-10.1
Available-for-sale securities, Fair Value, Total	1,455.30	3,643.20
Available-for-sale Securities, Gross Unrealized Losses, Total	-36.6	-185.1
Equities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale securities, Fair Value, Less than 12 months	46	118.6
Available For Sale Securities In A Continuous Unrealized Loss Position Less Than 12 Months Aggregate Losses	-0.2	-9.2
Available-for-sale securities, Fair Value, 12 months or longer	80.6	32.2
Available-for-sale Securities, Gross Unrealized Losses, 12 months or longer	-4.7	-1.1
Available-for-sale securities, Fair Value, Total	126.6	150.8
Available-for-sale Securities, Gross Unrealized Losses, Total	-4.9	-10.3
Hybrids	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale securities, Fair Value, Less than 12 months	'	52
Available For Sale Securities In A Continuous Unrealized Loss Position Less Than 12 Months Aggregate Losses	'	-3.3
Available-for-sale securities, Fair Value, 12 months or longer	12.7	0
Available-for-sale Securities, Gross Unrealized Losses, 12 months or longer	-0.2	0
Available-for-sale securities, Fair Value, Total	12.7	52
Available-for-sale Securities, Gross Unrealized Losses, Total	-0.2	-3.3
Municipals	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale securities, Fair Value, Less than 12 months	15.9	333.3
Available For Sale Securities In A Continuous Unrealized Loss Position Less Than 12 Months Aggregate Losses	'	-27.3
Available-for-sale securities, Fair Value, 12 months or longer	213.6	144.4
Available-for-sale Securities, Gross Unrealized Losses, 12 months or longer	-7.2	-13.4
Available-for-sale securities, Fair Value, Total	229.5	477.7
Available-for-sale Securities, Gross Unrealized Losses, Total	-7.2	-40.7
Agency residential mortgage-backed securities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale securities, Fair Value, Less than 12 months	5.5	9.8
Available For Sale Securities In A Continuous Unrealized Loss Position Less Than 12 Months Aggregate Losses	'	-0.2
Available-for-sale securities, Fair Value, 12 months or longer	0.7	1.1
Available-for-sale Securities, Gross Unrealized Losses, 12 months or longer	'	-0.1
Available-for-sale securities, Fair Value, Total	6.2	10.9
Available-for-sale Securities, Gross Unrealized Losses, Total	'	-0.3
Non-agency residential mortgage-backed securities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale securities, Fair Value, Less than 12 months	177.2	325.2
Available For Sale Securities In A Continuous Unrealized Loss Position Less Than 12 Months Aggregate Losses	-4.1	-12.2
Available-for-sale securities, Fair Value, 12 months or longer	139.7	69.9
Available-for-sale Securities, Gross Unrealized Losses, 12 months or longer	-3.7	-1.2
Available-for-sale securities, Fair Value, Total	316.9	395.1
Available-for-sale Securities, Gross Unrealized Losses, Total	-7.8	-13.4
U.S. Government securities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale securities, Fair Value, Less than 12 months	'	753.9
Available For Sale Securities In A Continuous Unrealized Loss Position Less Than 12 Months Aggregate Losses	'	-3.9
Available-for-sale securities, Fair Value, 12 months or longer	81.7	0
Available-for-sale Securities, Gross Unrealized Losses, 12 months or longer	-1.3	0
Available-for-sale securities, Fair Value, Total	81.7	753.9
Available-for-sale Securities, Gross Unrealized Losses, Total	($1.30)	($3.90)

Investments_Reconciliation_of_

Investments - Reconciliation of Other than Temporary Impairment on Fixed Maturity (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Investments, Debt and Equity Securities [Abstract]	'	'	'	'
Balance at the beginning of the period	$2.70	$2.70	$2.70	$2.70
Increases attributable to credit losses on securities:	'	'	'	'
Other-than-temporary impairment was previously recognized	0	0	0	0
Other-than-temporary impairment was not previously recognized	0	0	0	0
Balance at the end of the period	$2.70	$2.70	$2.70	$2.70

Investments_OtherthanTemporary

Investments - Other-than-Temporary Impairments (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Total other-than-temporary impairments	$0.60	$0.70	$0.60	$1.60
Municipals	'	'	'	'
Total other-than-temporary impairments	0.3	0	0.3	0
Non-agency residential mortgage-backed securities	'	'	'	'
Total other-than-temporary impairments	0	0.2	0	1.1
Other Invested Assets	'	'	'	'
Total other-than-temporary impairments	$0.30	$0.50	$0.30	$0.50

Investments_Net_Investment_Inc

Investments - Net Investment Income (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Schedule of Investments [Line Items]	'	'	'	'
Gross investment income	$195.80	$189.80	$571	$534.90
External investment expense	-4.6	-5.2	-12.1	-12.1
Net investment income	191.2	184.6	558.9	522.8
Fixed maturity available-for-sale securities	'	'	'	'
Schedule of Investments [Line Items]	'	'	'	'
Gross investment income	181.5	178.2	532.2	506.5
Equity available-for-sale securities	'	'	'	'
Schedule of Investments [Line Items]	'	'	'	'
Gross investment income	6.9	3.3	16.2	11.5
Related Party Loans	'	'	'	'
Schedule of Investments [Line Items]	'	'	'	'
Gross investment income	1.8	3.9	5.3	9.8
Policy loans	'	'	'	'
Schedule of Investments [Line Items]	'	'	'	'
Gross investment income	0.2	0	0.5	0
Invested cash and short-term investments	'	'	'	'
Schedule of Investments [Line Items]	'	'	'	'
Gross investment income	0	0.2	0.2	1.4
Other investments	'	'	'	'
Schedule of Investments [Line Items]	'	'	'	'
Gross investment income	$5.40	$4.20	$16.60	$5.70

Investments_Net_Investment_Gai

Investments - Net Investment Gains (Losses) (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Gain (Loss) on Investments [Abstract]	'	'	'	'
Net realized gains on fixed maturity available-for-sale securities	$72.90	$33.90	$92.60	$278.50
Realized gains on equity securities	0.1	4.8	-1.3	6.7
Net realized gains on securities	73	38.7	91.3	285.2
Realized gains (losses) on certain derivative instruments	57.2	54	157	99.3
Unrealized gains on certain derivative instruments	36.6	-34.1	73.3	27.3
Change in fair value of reinsurance related embedded derivative	-21.2	0	-54.3	0
Change in fair value of other embedded derivatives	0.9	0	0.9	0
Change in fair value of derivatives	73.5	19.9	176.9	126.6
Realized gains on other invested assets	-1.5	-0.3	-1.5	-0.3
Net investment gains	$145	$58.30	$266.70	$411.50

Derivative_Financial_Instrumen2

Derivative Financial Instruments - Fair Value of Derivative Instruments (Details) (USD $)	Jun. 30, 2014	Sep. 30, 2013
In Millions, unless otherwise specified
Derivative [Line Items]	'	'
Total asset derivatives	$400.60	$339.80
Total liability derivatives	1,891.60	1,568.20
Derivative Instruments	'	'
Derivative [Line Items]	'	'
Total asset derivatives	324.7	221.8
Call options | Derivative Instruments	'	'
Derivative [Line Items]	'	'
Total asset derivatives	324.6	221.8
Call options | Funds withheld for reinsurance liability	'	'
Derivative [Line Items]	'	'
Total liability derivatives	27.1	22.8
Future | Other liabilities	'	'
Derivative [Line Items]	'	'
Total liability derivatives	0	1
Other Embedded Derivative | Other Invested Assets	'	'
Derivative [Line Items]	'	'
Total asset derivatives	12.2	0
Embedded derivatives in Reinsurance contracts | Other assets	'	'
Derivative [Line Items]	'	'
Total asset derivatives	63.7	118
Fia Embedded Derivatives | Contractholder funds	'	'
Derivative [Line Items]	'	'
Total liability derivatives	1,864.50	1,544.40
Not Designated as Hedging Instrument | Future | Derivative Instruments	'	'
Derivative [Line Items]	'	'
Total asset derivatives	$0.10	$0

Derivative_Financial_Instrumen3

Derivative Financial Instruments - Schedule of Change in Fair Value of Derivative Instruments (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Derivative [Line Items]	'	'	'	'
Change in fair value of reinsurance related embedded derivative	($21.20)	$0	($54.30)	$0
Net Realized Investment Gains	'	'	'	'
Derivative [Line Items]	'	'	'	'
Change in fair value of reinsurance related embedded derivative	73.5	19.9	176.9	126.6
Call options | Net Realized Investment Gains	'	'	'	'
Derivative [Line Items]	'	'	'	'
Change in fair value of reinsurance related embedded derivative	83.2	16.5	205.3	114.1
Future | Net Realized Investment Gains	'	'	'	'
Derivative [Line Items]	'	'	'	'
Change in fair value of reinsurance related embedded derivative	10.6	3.4	25	12.5
Other Embedded Derivative | Net Realized Investment Gains	'	'	'	'
Derivative [Line Items]	'	'	'	'
Change in fair value of reinsurance related embedded derivative	0.9	0	0.9	0
Embedded derivatives in Reinsurance contracts | Net Realized Investment Gains	'	'	'	'
Derivative [Line Items]	'	'	'	'
Change in fair value of reinsurance related embedded derivative	-21.2	0	-54.3	0
Fia Embedded Derivatives	'	'	'	'
Derivative [Line Items]	'	'	'	'
Change in fair value of reinsurance related embedded derivative	$145.80	($53.70)	$320.10	$35.10

Derivative_Financial_Instrumen4

Derivative Financial Instruments - FGL's Exposure to Credit Loss on Call Options Held (Detail) (USD $)

Jun. 30, 2014

Sep. 30, 2013

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Sep. 30, 2013

Jun. 30, 2014

Sep. 30, 2013

Jun. 30, 2014

Sep. 30, 2013

Jun. 30, 2014

Sep. 30, 2013

Jun. 30, 2014

Sep. 30, 2013

Jun. 30, 2014

Sep. 30, 2013

In Millions, unless otherwise specified

Merrill Lynch

Deutsche Bank

Morgan Stanley

Royal Bank of Scotland

Barclay's Bank

Derivatives For Trading And Investment

Derivatives For Trading And Investment

Derivatives For Trading And Investment

Derivatives For Trading And Investment

Derivatives For Trading And Investment

Derivatives For Trading And Investment

Derivatives For Trading And Investment

Derivatives For Trading And Investment

Derivatives For Trading And Investment

Derivatives For Trading And Investment

Derivatives For Trading And Investment

Derivatives For Trading And Investment

Not Designated as Hedging Instrument

Not Designated as Hedging Instrument

Not Designated as Hedging Instrument

Not Designated as Hedging Instrument

Not Designated as Hedging Instrument

Not Designated as Hedging Instrument

Not Designated as Hedging Instrument

Not Designated as Hedging Instrument

Not Designated as Hedging Instrument

Not Designated as Hedging Instrument

Not Designated as Hedging Instrument

Not Designated as Hedging Instrument

Call options

Call options

Call options

Call options

Call options

Call options

Call options

Call options

Call options

Call options

Call options

Call options

Merrill Lynch

Merrill Lynch

Deutsche Bank

Deutsche Bank

Morgan Stanley

Morgan Stanley

Royal Bank of Scotland

Royal Bank of Scotland

Barclay's Bank

Barclay's Bank

Derivatives, Fair Value [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Credit Rating (Moody's/S&P)

'

'

'A/*/A

[1]

'A+/A2/A

[1]

'*/A3/A

[1]

'A-/*/A-

[1]

'A/A2/A

[1]

'

'

'

'

'

'

'

'

'

'

'

'

Derivative, Notional Amount

'

'

'

'

'

'

'

$7,163.30

$6,407.40

$2,150.90

$2,037.80

$2,639.80

$1,620.40

$2,116.60

$2,264.10

$0

$364.30

$256

$120.80

Derivative Asset, Fair Value, Gross Asset

400.6

339.8

'

'

'

'

'

324.6

221.8

100.4

70.7

114.9

51.7

98.1

75.7

0

20.3

11.2

3.4

Derivative Asset, Collateral, Obligation to Return Cash, Offset

'

'

'

'

'

'

'

209.3

72

57.2

0

76.5

23

75.6

49

0

0

0

0

Derivative Asset, Fair Value, Amount Offset Against Collateral

'

'

'

'

'

'

'

$115.30

$149.80

$43.20

$70.70

$38.40

$28.70

$22.50

$26.70

$0

$20.30

$11.20

$3.40

[1]

Credit rating as of JuneB 30, 2014

Derivative_Financial_Instrumen5

Derivative Financial Instruments - Additional Information (Details) (USD $)

Jun. 30, 2014

Sep. 30, 2013

Jun. 30, 2014

Sep. 30, 2013

Mar. 31, 2014

Sep. 30, 2013

Jun. 30, 2014

Sep. 30, 2013

Jun. 30, 2014

Sep. 30, 2013

Jun. 16, 2014

Jun. 16, 2014

In Millions, unless otherwise specified

Future

Future

Other liabilities

Other liabilities

Derivatives For Trading And Investment

Derivatives For Trading And Investment

Cash and Cash Equivalents

Cash and Cash Equivalents

Policy loans and other invested assets

Policy loans and other invested assets

Contract

Contract

Not Designated as Hedging Instrument

Not Designated as Hedging Instrument

Not Designated as Hedging Instrument

Not Designated as Hedging Instrument

Not Designated as Hedging Instrument

Not Designated as Hedging Instrument

Other Investments Asset

Other Investments Asset

Call options

Call options

Call options

Call options

Call options

Call options

Other Embedded Derivative

Derivative [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Collateral posted

'

'

'

'

$108.90

$72

$209.30

$72

$152.10

$72

'

'

Maximum exposure

115.3

149.8

'

'

'

'

'

'

'

'

'

'

Number of instruments held

'

'

2,016

1,693

'

'

'

'

'

'

'

'

Collateral held

'

'

8.7

5.9

'

'

'

'

'

'

'

'

Fund purchased

'

'

'

'

'

'

'

'

'

'

35

'

Derivative, Notional Amount

'

'

'

'

'

'

$7,163.30

$6,407.40

'

'

'

$11.30

Fair_Value_of_Financial_Instru2

Fair Value of Financial Instruments - Assets and Liabilities Carrying at Fair Value Measured on a Recurring Basis (Details) (USD $)	Jun. 30, 2014	Sep. 30, 2013
In Millions, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative investments	$324.70	$221.80
Total financial assets at fair value	1,129.10	870.2
Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash and cash equivalents	818.3	1,204.30
Equity securities - available-for-sale	50	0
Derivative investments	0	0
Related party loans	0	0
Other invested assets	0	0
Total financial assets at fair value	1,077.70	1,995.20
Investment contracts, included in contractholder funds	0	0
Call options payable for FSRCI, included in funds withheld for reinsurance liabilities	'	0
Debt	0	0
Total financial liabilities at fair value	0	0
Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash and cash equivalents	0	0
Equity securities - available-for-sale	607.4	271.1
Derivative investments	324.7	221.8
Related party loans	0	0
Other invested assets	0.6	0
Total financial assets at fair value	16,886	14,648.30
Investment contracts, included in contractholder funds	0	0
Call options payable for FSRCI, included in funds withheld for reinsurance liabilities	'	22.8
Debt	300	300
Total financial liabilities at fair value	327.1	323.8
Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash and cash equivalents	0	0
Equity securities - available-for-sale	41	0
Derivative investments	0	0
Related party loans	124.1	119
Other invested assets	339.6	188.2
Total financial assets at fair value	1,413.10	1,020.30
Investment contracts, included in contractholder funds	12,891.50	12,378.60
Call options payable for FSRCI, included in funds withheld for reinsurance liabilities	'	0
Debt	0	0
Total financial liabilities at fair value	14,756	13,923
Fair Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash and cash equivalents	818.3	1,204.30
Equity securities - available-for-sale	698.4	271.1
Derivative investments	324.7	221.8
Related party loans	124.1	119
Other invested assets	340.2	188.2
Total financial assets at fair value	19,376.80	17,663.80
Investment contracts, included in contractholder funds	12,891.50	12,378.60
Call options payable for FSRCI, included in funds withheld for reinsurance liabilities	'	22.8
Debt	300	300
Total financial liabilities at fair value	15,083.10	14,246.80
Carrying Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash and cash equivalents	818.3	1,204.30
Equity securities - available-for-sale	698.4	271.1
Derivative investments	324.7	221.8
Related party loans	124.1	119
Other invested assets	340.2	188.2
Total financial assets at fair value	19,376.80	17,663.80
Investment contracts, included in contractholder funds	14,353.40	13,703.80
Call options payable for FSRCI, included in funds withheld for reinsurance liabilities	'	22.8
Debt	300	300
Total financial liabilities at fair value	16,545	15,572
Embedded derivatives in Reinsurance contracts | Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative investments	0	0
Embedded derivatives in Reinsurance contracts | Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative investments	63.7	118
Embedded derivatives in Reinsurance contracts | Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative investments	0	0
Embedded derivatives in Reinsurance contracts | Fair Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative investments	63.7	118
Embedded derivatives in Reinsurance contracts | Carrying Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative investments	63.7	118
Fixed Index Annuity | Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
FIA embedded derivatives, included in contractholder funds	0	0
Fixed Index Annuity | Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
FIA embedded derivatives, included in contractholder funds	0	0
Fixed Index Annuity | Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
FIA embedded derivatives, included in contractholder funds	1,864.50	1,544.40
Fixed Index Annuity | Fair Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
FIA embedded derivatives, included in contractholder funds	1,864.50	1,544.40
Fixed Index Annuity | Carrying Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
FIA embedded derivatives, included in contractholder funds	1,864.50	1,544.40
Future Contracts | Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
FIA embedded derivatives, included in contractholder funds	'	0
Future Contracts | Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
FIA embedded derivatives, included in contractholder funds	'	1
Future Contracts | Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
FIA embedded derivatives, included in contractholder funds	'	0
Future Contracts | Fair Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
FIA embedded derivatives, included in contractholder funds	'	1
Future Contracts | Carrying Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
FIA embedded derivatives, included in contractholder funds	'	1
Call options | Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Call options payable for FSRCI, included in funds withheld for reinsurance liabilities	0	'
Call options | Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Call options payable for FSRCI, included in funds withheld for reinsurance liabilities	27.1	'
Call options | Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Call options payable for FSRCI, included in funds withheld for reinsurance liabilities	0	'
Call options | Fair Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Call options payable for FSRCI, included in funds withheld for reinsurance liabilities	27.1	'
Call options | Carrying Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Call options payable for FSRCI, included in funds withheld for reinsurance liabilities	27.1	'
Asset-backed securities | Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	0	0
Asset-backed securities | Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	1,935.20	1,518.10
Asset-backed securities | Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	42.8	246.4
Asset-backed securities | Fair Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	1,978	1,764.50
Asset-backed securities | Carrying Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	1,978	1,764.50
Commercial mortgage-backed securities | Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	0	0
Commercial mortgage-backed securities | Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	526.3	448.7
Commercial mortgage-backed securities | Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	83.9	5.6
Commercial mortgage-backed securities | Fair Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	610.2	454.3
Commercial mortgage-backed securities | Carrying Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	610.2	454.3
Corporates | Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	0	0
Corporates | Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	9,552.60	8,957.20
Corporates | Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	745.2	461.1
Corporates | Fair Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	10,297.80	9,418.30
Corporates | Carrying Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	10,297.80	9,418.30
Hybrids | Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	0	0
Hybrids | Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	481.6	428.8
Hybrids | Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	0	0
Hybrids | Fair Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	481.6	428.8
Hybrids | Carrying Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	481.6	428.8
Municipals | Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	0	0
Municipals | Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	1,219.20	1,007
Municipals | Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	36.5	0
Municipals | Fair Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	1,255.70	1,007
Municipals | Carrying Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	1,255.70	1,007
Residential Mortgage Backed Securities | Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	0	0
Residential Mortgage Backed Securities | Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	99.5	98.6
Residential Mortgage Backed Securities | Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	0	0
Residential Mortgage Backed Securities | Fair Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	99.5	98.6
Residential Mortgage Backed Securities | Carrying Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	99.5	98.6
Non-agency residential mortgage-backed securities | Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	0	0
Non-agency residential mortgage-backed securities | Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	1,874.10	1,368.10
Non-agency residential mortgage-backed securities | Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	0	0
Non-agency residential mortgage-backed securities | Fair Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	1,874.10	1,368.10
Non-agency residential mortgage-backed securities | Carrying Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	1,874.10	1,368.10
U.S. Government securities | Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	209.4	790.9
U.S. Government securities | Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	201.1	210.9
U.S. Government securities | Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	0	0
U.S. Government securities | Fair Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	410.5	1,001.80
U.S. Government securities | Carrying Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fixed maturity securities, available-for-sale	$410.50	$1,001.80

Fair_Value_of_Financial_Instru3

Fair Value of Financial Instruments - Schedule of Unobservable Inputs Used for Level Three Fair Value Measurements of Financial Instruments on Recurring Basis (Detail) (USD $)

Jun. 30, 2014

Sep. 30, 2013

Jun. 30, 2014

Sep. 30, 2013

Jun. 30, 2014

Sep. 30, 2013

Jun. 30, 2014

Sep. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Sep. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Sep. 30, 2013

Mar. 31, 2014

Jun. 30, 2014

Sep. 30, 2013

Mar. 31, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2013

Mar. 31, 2014

Sep. 30, 2013

Mar. 31, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Mar. 31, 2014

Sep. 30, 2013

Mar. 31, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2013

Mar. 31, 2014

Sep. 30, 2013

Jun. 30, 2014

Sep. 30, 2013

In Millions, unless otherwise specified

Broker Quoted

Broker Quoted

Broker Quoted

Broker Quoted

Broker Quoted

Broker Quoted

Broker Quoted

Broker Quoted

Broker Quoted

Broker Quoted

Broker Quoted

Market Approach

Market Approach

Black Scholes Model

Black Scholes Model

Market pricing

Market pricing

Market pricing

Market pricing

Market pricing

Fixed Index Annuity

Fixed Index Annuity

Fixed Index Annuity

Minimum

Minimum

Minimum

Minimum

Minimum

Minimum

Minimum

Minimum

Minimum

Minimum

Weighted Average

Weighted Average

Weighted Average

Weighted Average

Weighted Average

Weighted Average

Weighted Average

Weighted Average

Weighted Average

Weighted Average

Maximum

Maximum

Maximum

Maximum

Maximum

Maximum

Maximum

Maximum

Maximum

Maximum

Level 3

Level 3

Asset-backed securities

Asset-backed securities

Commercial mortgage-backed securities

Commercial mortgage-backed securities

Corporates

Corporates

Municipals

Municipals

Related Party Loans and Investments

Related Party Loans and Investments

Other Invested Assets

Related Party Loans and Investments

Other Invested Assets

Related Party Loans and Investments

Other Invested Assets

Corporates

Corporates

Other Invested Assets

Other Invested Assets

Other Invested Assets

Discounted Cash Flow

Discounted Cash Flow

Discounted Cash Flow

Broker Quoted

Broker Quoted

Broker Quoted

Broker Quoted

Broker Quoted

Market Approach

Market pricing

Market pricing

Fixed Index Annuity

Fixed Index Annuity

Broker Quoted

Broker Quoted

Broker Quoted

Broker Quoted

Broker Quoted

Broker Quoted

Market pricing

Market pricing

Fixed Index Annuity

Fixed Index Annuity

Broker Quoted

Broker Quoted

Broker Quoted

Broker Quoted

Broker Quoted

Market Approach

Market pricing

Market pricing

Fixed Index Annuity

Fixed Index Annuity

Asset-backed securities

Asset-backed securities

Commercial mortgage-backed securities

Corporates

Corporates

Related Party Loans and Investments

Corporates

Corporates

Discounted Cash Flow

Discounted Cash Flow

Asset-backed securities

Asset-backed securities

Commercial mortgage-backed securities

Commercial mortgage-backed securities

Corporates

Corporates

Corporates

Corporates

Discounted Cash Flow

Discounted Cash Flow

Asset-backed securities

Asset-backed securities

Commercial mortgage-backed securities

Corporates

Corporates

Related Party Loans and Investments

Corporates

Corporates

Discounted Cash Flow

Discounted Cash Flow

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Valuation Technique

'

'

'Broker-quoted

'Broker-quoted

'Broker-quoted

'Broker-quoted

'Broker-quoted

'Broker-quoted

'Broker-quoted

'

'

'

'Broker-quoted

'

'Market-approach

'

'Black Scholes model

'Matrix Pricing

'Market Pricing

'Market Pricing

'

'Market Pricing

'

'Discounted cash flow

'Discounted cash flow

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total financial assets at fair value

$1,129.10

$870.20

$42.80

$246.50

$83.90

$5.60

$653.50

$404.50

$36.50

'

$6

'

'

$35

'

'

$11.60

$91.70

$56.60

$168.10

'

$157

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$1,413.10

$1,020.30

Liabilities, Fair Value Disclosure

$1,864.50

$1,544.40

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$1,864.50

$1,544.40

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair Value Inputs Broker Quoted

'

'

'

'

'

'

'

'

116.55%

'

100.00%

100.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

95.45%

100.00%

104.00%

61.57%

0.00%

'

'

'

'

'

98.84%

100.91%

118.85%

95.50%

99.61%

90.45%

'

'

'

'

102.39%

107.25%

121.39%

121.00%

113.00%

'

'

'

'

'

'

'

Fair Value Inputs Black Scholes Model

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

100.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair Value Inputs Market Pricing

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

100.00%

100.00%

'

'

'

'

'

'

'

'

'

8.08%

95.94%

90.06%

'

'

'

'

'

'

'

'

101.73%

97.19%

'

'

'

'

'

'

'

9.58%

142.14%

130.92%

'

'

'

'

Fair Value Inputs Market Value Of Option

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.00%

0.00%

'

'

'

'

'

'

'

'

3.95%

3.82%

'

'

'

'

'

'

'

'

48.16%

38.24%

'

'

Fair Value Inputs, Swap Rates

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.70%

1.54%

'

'

'

'

'

'

'

'

2.17%

2.16%

'

'

'

'

'

'

'

'

2.63%

2.77%

'

'

Fair Value Measurements Mortality Multiplier

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

80.00%

'

80.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair Value Measurements Surrender Rates

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.50%

0.50%

'

'

'

'

'

'

'

'

7.00%

7.00%

'

'

'

'

'

'

'

'

75.00%

75.00%

'

'

Fair Value Measurements Non Performance Spread

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.25%

'

0.25%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair_Value_of_Financial_Instru4

Fair Value of Financial Instruments - Changes to Fair Value of Financial Instruments Level 3 (Detail) (USD $)	3 Months Ended				9 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'		'		'		'
Balance at Beginning of Period	$966.80		$466.20		$870.20		$238.10
Total Gains (Losses) Included in Earnings	0.3		0		0.3		-0.3
Total Gains (Losses) Included in AOCI	17.7		-10.6		21.3		-9.6
Net Purchases, Sales, & Settlements	163.2		359		464.9		639.3
Net transfer In (Out) of Level 3 (a)	-18.9	[1]	-0.1	[1]	-227.6	[1]	-53	[1]
Balance at End of Period	1,129.10		814.5		1,129.10		814.5
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'		'		'		'
Balance at Beginning of Period	1,718.70		1,639.60		1,544.40		1,550.80
Total Gains (Losses) Included in Earnings	145.8		-53.7		320.1		35.1
Total Gains (Losses) Included in AOCI	0		0		0		0
Net Purchases, Sales, & Settlements	0		0		0		0
Net transfer In (Out) of Level 3	0	[1]	0	[1]	0	[1]	0	[1]
Balance at End of Period	1,864.50		1,585.90		1,864.50		1,585.90
FIA embedded derivatives, included in contractholder funds	'		'		'		'
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'		'		'		'
Balance at Beginning of Period	1,718.70		1,639.60		1,544.40		1,550.80
Total Gains (Losses) Included in Earnings	145.8		-53.7		320.1		35.1
Total Gains (Losses) Included in AOCI	0		0		0		0
Net Purchases, Sales, & Settlements	0		0		0		0
Net transfer In (Out) of Level 3	0	[1]	0	[1]	0	[1]	0	[1]
Balance at End of Period	1,864.50		1,585.90		1,864.50		1,585.90
Contingent Purchase Price Reduction Receivable [Member]	'		'		'		'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'		'		'		'
Balance at Beginning of Period	'		41		'		41
Total Gains (Losses) Included in Earnings	'		0		'		0
Total Gains (Losses) Included in AOCI	'		0		'		0
Net Purchases, Sales, & Settlements	'		0		'		0
Net transfer In (Out) of Level 3 (a)	'		0	[1]	'		0	[1]
Balance at End of Period	'		41		'		41
Asset-backed securities	'		'		'		'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'		'		'		'
Balance at Beginning of Period	47.4		5.3		246.5		15.9
Total Gains (Losses) Included in Earnings	0		0		0		0
Total Gains (Losses) Included in AOCI	0.2		-0.2		-1.2		-0.2
Net Purchases, Sales, & Settlements	0		117.4		5		117.4
Net transfer In (Out) of Level 3 (a)	-4.8	[1]	0.1	[1]	-207.5	[1]	-10.5	[1]
Balance at End of Period	42.8		122.6		42.8		122.6
Commercial mortgage-backed securities	'		'		'		'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'		'		'		'
Balance at Beginning of Period	0		6.2		5.6		5
Total Gains (Losses) Included in Earnings	0		0		0		0
Total Gains (Losses) Included in AOCI	0.1		-0.1		0.5		0
Net Purchases, Sales, & Settlements	83.8		0		83.8		1
Net transfer In (Out) of Level 3 (a)	0	[1]	-0.1	[1]	-6	[1]	'	[1]
Balance at End of Period	83.9		6		83.9		6
Corporates	'		'		'		'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'		'		'		'
Balance at Beginning of Period	657		356.5		461.1		135.3
Total Gains (Losses) Included in Earnings	0		0		0		-0.3
Total Gains (Losses) Included in AOCI	14.4		-11.9		18.4		-10.8
Net Purchases, Sales, & Settlements	87.9		94.5		279.8		348.6
Net transfer In (Out) of Level 3 (a)	-14.1	[1]	-0.1	[1]	-14.1	[1]	-33.8	[1]
Balance at End of Period	745.2		439		745.2		439
Hybrids	'		'		'		'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'		'		'		'
Balance at Beginning of Period	'		'		'		8.9
Total Gains (Losses) Included in Earnings	'		0		'		0
Total Gains (Losses) Included in AOCI	'		0		'		-0.2
Net Purchases, Sales, & Settlements	'		0		'		0
Net transfer In (Out) of Level 3 (a)	'		0		'		-8.7
Balance at End of Period	'		0		'		0
Municipals	'		'		'		'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'		'		'		'
Balance at Beginning of Period	35.6		'		0		'
Total Gains (Losses) Included in Earnings	0		'		0		'
Total Gains (Losses) Included in AOCI	0.9		'		1.5		'
Net Purchases, Sales, & Settlements	0		'		35		'
Net transfer In (Out) of Level 3 (a)	0	[1]	'		0	[1]	'
Balance at End of Period	36.5		'		36.5		'
Equity Securities	'		'		'		'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'		'		'		'
Balance at Beginning of Period	33.4		10		0		0
Total Gains (Losses) Included in Earnings	0		0		0		0
Total Gains (Losses) Included in AOCI	2.1		1.6		2.1		1.6
Net Purchases, Sales, & Settlements	5.5		0.1		38.9		10.1
Net transfer In (Out) of Level 3 (a)	0	[1]	0	[1]	0	[1]	0	[1]
Balance at End of Period	41		11.7		41		11.7
Fixed Maturity Security Embedded Derivative	'		'		'		'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'		'		'		'
Balance at Beginning of Period	0		'		0		'
Total Gains (Losses) Included in Earnings	0.3		'		0.3		'
Total Gains (Losses) Included in AOCI	0		'		0		'
Net Purchases, Sales, & Settlements	11.3		'		11.3		'
Net transfer In (Out) of Level 3 (a)	0	[1]	'		0	[1]	'
Balance at End of Period	11.6		'		11.6		'
Salus 2013 Participations	'		'		'		'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'		'		'		'
Balance at Beginning of Period	193.4		15.2		157		0
Total Gains (Losses) Included in Earnings	0		0		0		0
Total Gains (Losses) Included in AOCI	0		0		0		0
Net Purchases, Sales, & Settlements	-25.3		147		11.1		162.2
Net transfer In (Out) of Level 3 (a)	0	[1]	0		0	[1]	0
Balance at End of Period	168.1		162.2		168.1		162.2
Other Invested Assets	'		'		'		'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'		'		'		'
Balance at Beginning of Period	'		32		'		32
Total Gains (Losses) Included in Earnings	'		0		'		0
Total Gains (Losses) Included in AOCI	'		0		'		0
Net Purchases, Sales, & Settlements	'		0		'		0
Net transfer In (Out) of Level 3 (a)	'		0		'		0
Balance at End of Period	'		$32		'		$32
[1]	There was a $6.0 transfer within the Level 3 asset class from commercial mortgage-backed securities to asset-backed securities.

Fair_Value_of_Financial_Instru5

Fair Value of Financial Instruments - Gross Components of Purchase, Sales, Issuances, and Settlements of Financial Instruments (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'	'	'
Purchases	$193.60	$367.30	$566.30	$670.90
Sales	-1	0	-1	-9.6
Settlements	-29.4	-8.3	-100.4	-22
Net Purchases, Sales, & Settlements	163.2	359	464.9	639.3
Asset-backed securities	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'	'	'
Purchases	'	117.5	5	117.5
Sales	'	0	0	0
Settlements	'	-0.1	0	-0.1
Net Purchases, Sales, & Settlements	0	117.4	5	117.4
Commercial mortgage-backed securities	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'	'	'
Purchases	83.8	'	83.8	1
Sales	0	'	0	0
Settlements	0	'	0	0
Net Purchases, Sales, & Settlements	83.8	0	83.8	1
Corporates	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'	'	'
Purchases	88.9	102.7	283.2	380.1
Sales	-1	0	-1	-9.6
Settlements	0	-8.2	-2.4	-21.9
Net Purchases, Sales, & Settlements	87.9	94.5	279.8	348.6
Fixed Maturity Security Embedded Derivative	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'	'	'
Purchases	11.3	'	11.3	'
Sales	0	'	0	'
Settlements	0	'	0	'
Net Purchases, Sales, & Settlements	11.3	'	11.3	'
Salus 2013 Participations	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'	'	'
Purchases	4.1	147	109.1	162.2
Sales	0	0	0	0
Settlements	-29.4	0	-98	0
Net Purchases, Sales, & Settlements	-25.3	147	11.1	162.2
Equity Securities	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'	'	'
Purchases	5.5	0.1	38.9	10.1
Sales	0	0	0	0
Settlements	0	0	0	0
Net Purchases, Sales, & Settlements	5.5	0.1	38.9	10.1
Municipals	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'	'	'
Purchases	'	'	35	'
Sales	'	'	0	'
Settlements	'	'	0	'
Net Purchases, Sales, & Settlements	0	'	35	'
Other Invested Assets	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'	'	'
Net Purchases, Sales, & Settlements	'	$0	'	$0

Fair_Value_of_Financial_Instru6

Fair Value of Financial Instruments - Additional Information (Detail) (USD $)	3 Months Ended	9 Months Ended
	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Percentage of female contractholder	'	50.00%	'
Percentage of male contractholder	'	50.00%	'
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers Between Asset Classification	'	$6,000,000	'
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount	0	0	79,300,000
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers Less Reclassifications, Net	-18,900,000	-221,600,000	'
Mortgage Loans on Real Estate	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Loans receivable, fair value	$148,600,000	$148,600,000	'

Intangibles_Assets_Summary_of_

Intangibles Assets - Summary of Changes in Carrying Amounts of Intangible Assets Including DAC, VOBA , and DSI (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Intangible Assets, Including Goodwill [Roll Forward]	'	'	'	'
Beginning Balance, Intangible Assets, Excluding Goodwill	'	'	$563.80	$273.50
Deferrals	'	'	172.5	109.2
Amortization of intangibles	-14.7	-64.7	-48.9	-163.1
Adjustment for unrealized investment (gains), net, Goodwill	'	'	-191.2	260.9
Ending Balance, Intangible Assets, Excluding Goodwill	496.2	480.5	496.2	480.5
Unlocking	'	'	'	'
Intangible Assets, Including Goodwill [Roll Forward]	'	'	'	'
Amortization of intangibles	'	'	-25.2	-27.4
Interest	'	'	'	'
Intangible Assets, Including Goodwill [Roll Forward]	'	'	'	'
Amortization of intangibles	'	'	-21.1	-23.3
Other amortization	'	'	'	'
Intangible Assets, Including Goodwill [Roll Forward]	'	'	'	'
Amortization of intangibles	'	'	-95.2	-213.8
VOBA	'	'	'	'
Intangible Assets, Including Goodwill [Roll Forward]	'	'	'	'
Beginning Balance, Finite Lived Intangible Assets	'	'	225.3	104.3
Deferrals	'	'	'	0
Adjustment for unrealized investment (gains), net, Goodwill	'	'	-108.2	211.3
Ending Balance, Finite Lived Intangible Assets	90.6	202.6	90.6	202.6
VOBA | Unlocking	'	'	'	'
Intangible Assets, Including Goodwill [Roll Forward]	'	'	'	'
Amortization of intangibles	'	'	-21.8	-22.6
VOBA | Interest	'	'	'	'
Intangible Assets, Including Goodwill [Roll Forward]	'	'	'	'
Amortization of intangibles	'	'	-11	-16.2
VOBA | Other amortization	'	'	'	'
Intangible Assets, Including Goodwill [Roll Forward]	'	'	'	'
Amortization of intangibles	'	'	-59.3	-151.8
DAC	'	'	'	'
Intangible Assets, Including Goodwill [Roll Forward]	'	'	'	'
Beginning Balance, Finite Lived Intangible Assets	'	'	338.5	169.2
Deferrals	'	'	172.5	109.2
Adjustment for unrealized investment (gains), net, Goodwill	'	'	-83	49.6
Ending Balance, Finite Lived Intangible Assets	405.6	277.9	405.6	277.9
DAC | Unlocking	'	'	'	'
Intangible Assets, Including Goodwill [Roll Forward]	'	'	'	'
Amortization of intangibles	'	'	-3.4	-4.8
DAC | Interest	'	'	'	'
Intangible Assets, Including Goodwill [Roll Forward]	'	'	'	'
Amortization of intangibles	'	'	-10.1	-7.1
DAC | Other amortization	'	'	'	'
Intangible Assets, Including Goodwill [Roll Forward]	'	'	'	'
Amortization of intangibles	'	'	($35.90)	($62)

Intangibles_Assets_Additional_

Intangibles Assets - Additional Information (Detail) (USD $)	Jun. 30, 2014	Sep. 30, 2013	Jun. 30, 2014	Sep. 30, 2013	Jun. 30, 2014
In Millions, unless otherwise specified	VOBA	VOBA	DAC	DAC	Weighted Average
					VOBA
Finite-Lived Intangible Assets [Line Items]	'	'	'	'	'
Cumulative Adjustments For Net Unrealized Investment Loss	$189.70	'	'	'	'
Cumulative adjustments for net unrealized investment gains	'	81.4	-64.4	18.6	'
Deferred sales inducements, net of shadow adjustments	'	'	$29.80	$26.20	'
Weighted average amortization period	'	'	'	'	'5 years

Intangibles_Assets_Estimated_A

Intangibles Assets - Estimated Amortization Expense for VOBA in Future Fiscal Periods (Detail) (VOBA, USD $)	Jun. 30, 2014
In Millions, unless otherwise specified
VOBA	'
Schedule Of Amortization Expense And Weighted Average Lives Of Identified Intangible Assets [Line Items]	'
2014	$8.20
2015	43.4
2016	39.6
2017	32.7
2018	26.6
Thereafter	$129.70

Long_Term_Debt_Narrative_Detai

Long Term Debt - Narrative (Detail) (USD $)	9 Months Ended			3 Months Ended		9 Months Ended			1 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Sep. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Mar. 31, 2013	Mar. 31, 2013
				6.375% Senior Notes, Due April 1, 2021	6.375% Senior Notes, Due April 1, 2021	6.375% Senior Notes, Due April 1, 2021	6.375% Senior Notes, Due April 1, 2021	6.375% Senior Notes, Due April 1, 2021	6.375% Senior Notes, Due April 1, 2021
				Senior Notes	Senior Notes	Senior Notes	Senior Notes	Senior Notes	Senior Notes
									Other assets
Debt Instrument [Line Items]	'	'	'	'	'	'	'	'	'
Long-term debt	$300,000,000	'	$300,000,000	'	'	'	'	$300,000,000	'
Long-term debt, interest rate	6.38%	'	'	'	'	'	'	6.38%	'
Interest Expense, Debt	'	'	'	4,800,000	5,100,000	14,300,000	5,100,000	'	'
Debt Issuance Cost	'	'	'	'	'	'	'	'	10,200,000
Amortization of debt issuance costs	$2,600,000	$800,000	'	$900,000	$800,000	$2,600,000	$800,000	'	'

Equity_Narrative_Details

Equity - Narrative (Details) (USD $)

0 Months Ended

1 Months Ended

9 Months Ended

In Millions, except Share data, unless otherwise specified

Jun. 02, 2014

6-May-14

Mar. 03, 2014

Dec. 18, 2013

Dec. 12, 2013

Nov. 26, 2013

Mar. 31, 2014

Jun. 30, 2014

Jun. 30, 2013

Mar. 17, 2014

Nov. 25, 2013

Sep. 30, 2013

Class of Stock [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Common stock, par value (in dollars per share)

'

'

'

'

'

$0.01

'

$0.01

'

'

'

$0.01

Common stock, shares authorized

'

'

'

'

'

500,000,000

'

500,000,000

'

'

100,000

500,000,000

Common stock split ratio

'

'

'

'

'

4,700

'

'

'

'

'

'

Stock issued in stock split (in shares)

'

'

'

'

'

47,000,000

'

'

'

'

'

'

Underwriter option to purchase common stock (in shares)

'

'

'

'

1,462,500

'

'

'

'

'

'

'

Shareholders' disclosure, common stock (in shares)

'

'

'

'

'

'

'

47,000,000

'

'

'

'

Shareholders' disclosure, ownership percentage

'

'

'

'

'

'

'

80.40%

'

'

'

'

Net proceeds from the IPO

'

'

'

$172.50

'

'

'

'

'

'

'

'

Dividend Paid to Harbinger

'

'

'

43

'

'

'

50.6

93.7

'

'

'

Cash dividend per common share

'

$0.07

$0.07

'

'

'

'

'

'

'

'

'

Dividends, Common Stock, Cash

3.7

'

'

'

'

'

3.9

'

'

'

'

'

Common stock, shares outstanding

58,271,000

'

'

'

'

'

'

58,437,412

'

58,271,000

'

47,000,000

Common Stock

'

'

'

'

'

'

'

'

'

'

'

'

Class of Stock [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Stock issued during period (in shares)

'

'

'

'

9,750,000

'

'

'

'

'

'

'

Common Stock | Director

'

'

'

'

'

'

'

'

'

'

'

'

Class of Stock [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Stock issued during period (in shares)

'

'

'

'

58,322

'

'

'

'

'

'

'

Retained Earnings

'

'

'

'

'

'

'

'

'

'

'

'

Class of Stock [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Dividend Paid to Harbinger

'

'

'

'

'

'

'

$50.60

$93.70

'

'

'

Stock_Compensation_Schedule_of

Stock Compensation - Schedule of Stock Based Compensation Costs (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Allocated Share-based Compensation Expense	$2.50	$1.80	$17.50	$3.50
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense	0.9	0.6	6.1	1.2
Allocated Share-based Compensation Expense, Net of Tax	1.6	1.2	11.4	2.3
FGL Plan	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Allocated Share-based Compensation Expense	0.1	0	2.3	0
FGL Plan | Employee Stock Option	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Allocated Share-based Compensation Expense	0.1	0	0.2	0
FGL Plan | Restricted stock units	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Allocated Share-based Compensation Expense	0.1	0	0.4	0
FGL Plan | Performance Shares	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Allocated Share-based Compensation Expense	-0.1	0	0.7	0
FGL Plan | Unrestricted Shares	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Allocated Share-based Compensation Expense	0	0	1	0
FGLH Plan	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Allocated Share-based Compensation Expense	2.4	1.8	15.2	3.5
2011 Stock Incentive Plan | Employee Stock Option	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Allocated Share-based Compensation Expense	1.1	1	7	1.9
2011 Dividend Equivalent Plan	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Allocated Share-based Compensation Expense	0	0.2	0.6	0.6
2011 Stock Incentive Plan, Amended and Restated | Employee Stock Option	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Allocated Share-based Compensation Expense	0.9	0.2	5.9	0.2
2011 Stock Incentive Plan, Amended and Restated | Restricted stock units	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Allocated Share-based Compensation Expense	0.3	0.2	1.4	0.4
2012 Dividend Equivalent Plan	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Allocated Share-based Compensation Expense	$0.10	$0.20	$0.30	$0.40

Stock_Compensation_Summary_of_

Stock Compensation - Summary of unrecognized stock compensation expense (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Unrecognized Compensation Expense	$18.80
Weighted Average Recognition Period in Years	'2 years 1 month 7 days
FGL Plan	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Unrecognized Compensation Expense	11.8
FGL Plan | Employee Stock Option	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Unrecognized Compensation Expense	0.7
Weighted Average Recognition Period in Years	'2 years 8 months 13 days
FGL Plan | Restricted stock units	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Unrecognized Compensation Expense	2.3
Weighted Average Recognition Period in Years	'2 years 8 months 13 days
FGL Plan | Performance Shares	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Unrecognized Compensation Expense	8.8
Weighted Average Recognition Period in Years	'2 years 6 months
FGL Plan | Unrestricted Shares	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Unrecognized Compensation Expense	0
2011 Stock Incentive Plan | Employee Stock Option	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Unrecognized Compensation Expense	1
Weighted Average Recognition Period in Years	'0 years 3 months 20 days
2011 Dividend Equivalent Plan	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Unrecognized Compensation Expense	0
Weighted Average Recognition Period in Years	'0 years
2011 Stock Incentive Plan, Amended and Restated | Employee Stock Option	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Unrecognized Compensation Expense	3.2
Weighted Average Recognition Period in Years	'1 year 6 months
2011 Stock Incentive Plan, Amended and Restated | Restricted stock units	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Unrecognized Compensation Expense	2
Weighted Average Recognition Period in Years	'1 year 6 months
2012 Dividend Equivalent Plan	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Unrecognized Compensation Expense	0.8
Weighted Average Recognition Period in Years	'1 year 9 months 19 days
FGLH Plan	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Unrecognized Compensation Expense	$7

Stock_Compensation_Summary_of_1

Stock Compensation - Summary of Stock Options Outstanding and Related Activity (Detail) (USD $)	9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jun. 30, 2014
Options (in shares):	'
Exercisable at end of period	0
Weighted Average Exercise Price (in dollars per share):	'
Exercisable at end of period (USD per share)	'
Weighted Average Grant Date Fair Value (in dollars per share):	'
Exercisable at end of period (USD per share)	'
FGL Plan | Stock Option Awards	'
Options (in shares):	'
Stock options outstanding at beginning of period	0
Granted	249
Forfeited or expired	-4
Stock options outstanding at end of period	245
Vested or expected to vest at end of period	241
Weighted Average Exercise Price (in dollars per share):	'
Stock options outstanding at beginning of period (USD per share)	$0
Forfeited or expired (USD per share)	'
Stock options outstanding at end of period (USD per share)	$17
Vested or expected to vest at end of period (USD per share)	$17
Weighted Average Grant Date Fair Value (in dollars per share):	'
Stock options outstanding at beginning of period (USD per share)	$0
Granted (USD per share)	$3.76
Forfeited or expired (USD per share)	$5.26
Stock options outstanding at end of period (USD per share)	$3.73
Vested or expected to vest at end of period (USD per share)	$3.70
FGLH Plan | Stock Option Awards	'
Options (in shares):	'
Stock options outstanding at beginning of period	335
Granted	0
Exercised	-41
Forfeited or expired	-3
Stock options outstanding at end of period	291
Exercisable at end of period	132
Vested or expected to vest at end of period	284
Weighted Average Exercise Price (in dollars per share):	'
Stock options outstanding at beginning of period (USD per share)	$44.23	[1]
Granted (USD per share)	$0	[1]
Exercised (USD per share)	$41.23	[1]
Forfeited or expired (USD per share)	$47.06	[1]
Stock options outstanding at end of period (USD per share)	$44.62	[1]
Exercisable at end of period (USD per share)	$42.33	[1]
Vested or expected to vest at end of period (USD per share)	$44.57	[1]
Fidelity And Guaranty Life Holdings	'
Weighted Average Grant Date Fair Value (in dollars per share):	'
Share Price	$110.74
[1]	The exercise price is based on the value of FGLHbs common stock, not the value of the Companybs common stock. The fair value of FGLH stock at JuneB 30, 2014 is $110.74.

Stock_Compensation_Assumptions

Stock Compensation - Assumptions Used in Determination of Grant Date Fair Values Using Black-Scholes Option Pricing Model (Detail) (FGL Plan)	9 Months Ended
	Jun. 30, 2014
FGL Plan	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Risk-free interest rate	1.40%
Assumed dividend yield	1.50%
Expected option term	'4 years 6 months
Volatility	25.00%

Stock_Compensation_Summary_of_2

Stock Compensation - Summary of Restricted Stock and Restricted Stock Units Outstanding and Related Activity (Detail) (USD $)	9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jun. 30, 2014
FGL Plan | Performance Shares	'
Shares:	'
Restricted shares outstanding at beginning of period	0
Granted	541
Forfeited or expired	0
Restricted shares outstanding at end of period	541
Exercisable	0
Restricted stock expected to vest	541
Weighted Average Grant Date Fair Value (in dollars per share):	'
Average grant date fair value outstanding at beginning of period (USD per share)	$0
Average grant date fair value, Granted (USD per share)	$17.37
Average grant date fair value, Forfeited or Expired (USD per share)	$0
Average grant date fair value, Exercisable (USD per share)	'
Average grant date fair value, Restricted award expected to vest (USD per share)	$17.37
FGL Plan | Restricted stock units	'
Shares:	'
Restricted shares outstanding at beginning of period	0
Granted	171
Forfeited or expired	-5
Restricted shares outstanding at end of period	166
Exercisable	0
Restricted stock expected to vest	162
Weighted Average Grant Date Fair Value (in dollars per share):	'
Average grant date fair value outstanding at beginning of period (USD per share)	$0
Average grant date fair value, Granted (USD per share)	$18.11
Average grant date fair value, Forfeited or Expired (USD per share)	$19.98
Average grant date fair value outstanding at end of period (USD per share)	$18.06
Average grant date fair value, Exercisable (USD per share)	$0
Average grant date fair value, Restricted award expected to vest (USD per share)	$18
FGLH Plan | Restricted stock units	'
Shares:	'
Restricted shares outstanding at beginning of period	46
Granted	0
Exercised	-18
Forfeited or expired	-1
Restricted shares outstanding at end of period	27
Exercisable	0
Restricted stock expected to vest	25
Weighted Average Grant Date Fair Value (in dollars per share):	'
Average grant date fair value outstanding at beginning of period (USD per share)	$49.60	[1]
Average grant date fair value, Granted (USD per share)	$0	[1]
Average grant date fair value, Exercised (USD per share)	$49.53	[1]
Average grant date fair value, Forfeited or Expired (USD per share)	$49.45	[1]
Average grant date fair value outstanding at end of period (USD per share)	$49.55	[1]
Average grant date fair value, Exercisable (USD per share)	'	[1]
Average grant date fair value, Restricted award expected to vest (USD per share)	$49.55	[1]
[1]	Fair value is based on the value of FGLHbs common stock, not the value of the Companybs common stock.

Stock_Compensation_Narrative_D

Stock Compensation - Narrative (Details) (USD $)

Nov. 19, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2014

Dec. 12, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Dec. 12, 2013

Dec. 12, 2013

Dec. 12, 2013

Jan. 22, 2014

Dec. 12, 2013

Dec. 12, 2013

Dec. 12, 2013

Dec. 12, 2013

Dec. 12, 2013

FGL Plan

FGL Plan

FGL Plan

FGL Plan

FGL Plan

FGLH Plan

FGLH Plan

FGLH Plan

Directors and Senior Officers

Directors and Senior Officers

Executive Officer

Chief Financial Officer

Compensation Committee

Compensation Committee

Other Key Employees

Other Key Employees

Director

Stock Option Awards

Stock Option Awards

Restricted stock units

Performance Shares

Unrestricted Shares

Stock Option Awards

Stock Option Awards

Restricted stock units

FGL Plan

FGL Plan

FGL Plan

FGL Plan

FGL Plan

FGL Plan

FGL Plan

FGL Plan

FGL Plan

Stock Option Awards

Restricted stock units

Performance Shares

Performance Shares

Stock Option Awards

Restricted stock units

Stock Option Awards

Restricted stock units

Stock Option Awards

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of Shares Authorized

2,838,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock options granted

'

249,000

'

'

'

'

0

'

'

239,000

'

'

'

10,000

'

'

'

58,000

Award Vesting Period

'

'3 years

'

'3 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair value at grant date

'

'

'

'

'

$1,000,000

'

'

'

$600,000

$1,800,000

$8,000,000

$1,400,000

'

'

$300,000

$1,200,000

'

Restricted stock unit grants

'

'

'

171,000

541,000

'

'

'

0

'

96,000

469,000

72,000

'

11,000

'

64,000

'

Options, Outstanding, Intrinsic Value

'

1,700,000

'

'

'

'

19,200,000

'

'

'

'

'

'

'

'

'

'

'

Options, Exercisable, Intrinsic Value

'

0

'

'

'

'

9,000,000

'

'

'

'

'

'

'

'

'

'

'

Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value

'

1,700,000

'

'

'

'

18,800,000

'

'

'

'

'

'

'

'

'

'

'

Options, Exercises in Period, Intrinsic Value

'

$0

$0

'

'

'

$5,900,000

$400,000

'

'

'

'

'

'

'

'

'

'

Income_Taxes_Narrative_Detail

Income Taxes - Narrative (Detail) (USD $)	3 Months Ended			9 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Tax Credit Carryforward [Line Items]	'	'	'	'	'
Effective Income Tax Rate Reconciliation, Percent	'	31.20%	28.70%	7.00%	32.10%
Valuation Allowance, Deferred Tax Asset, Change in Amount	'	($35)	'	'	'
Change in Deferred Tax Assets Valuation Allowance, Amount	'	'	'	35	'
Unrealized Built-in Gain on Securities Available for Sale	'	100	'	'	'
Unrealized Built-in Gain on Securities Available for Sale, Amount Realized in Period	67.5	'	'	'	'
Income Tax Expense (Benefit) on Unrealized Built in Gain on Securities Available for Sale	'	'	'	23.6	'
Valuation allowance	120.4	'	'	120.4	'
Deferred gross tax assets	215.7	'	'	215.7	'
Tax Year 2015 | Capital Loss Carryforward	'	'	'	'	'
Tax Credit Carryforward [Line Items]	'	'	'	'	'
Tax Credit Carryforward, Amount	$258.80	'	'	$258.80	'

Commitments_and_Contingencies_

Commitments and Contingencies - Narrative (Details) (USD $)	0 Months Ended	9 Months Ended		12 Months Ended
In Millions, unless otherwise specified	Apr. 04, 2014	Jun. 30, 2014	Jun. 30, 2014	Sep. 30, 2012	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2014
			FGL	FGL	Minimum	Maximum	Pending Litigation
Loss Contingencies [Line Items]	'	'	'	'	'	'	'
Accrued amount of guaranty fund assessments	'	'	$4.40	'	'	'	'
Estimated future premium tax deductions	'	'	4.7	'	'	'	'
Pre-tax charge, net of reinsurance, to increase reserves to cover potential benefits payable	'	'	'	11	'	'	'
Administrative costs and potential liabilities	'	'	2	'	'	'	'
Estimated range of external legal costs	'	'	'	'	1	3	'
Payments audit and legal costs	'	0.4	'	'	'	'	'
Litigation Settlement, Amount	5.3	'	'	'	'	'	'
Loss Contingency, Estimate of Possible Loss	'	'	'	'	'	'	9.9
Estimated Litigation Liability	'	7.3	'	'	'	'	'
Insurance Settlements Receivable	'	'	'	'	'	'	$4.50

Reinsurance_Effect_of_Reinsura

Reinsurance - Effect of Reinsurance on Premiums Earned, Benefits Incurred and Reserve Changes (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Insurance Premiums:	'	'	'	'
Direct	$65.60	$69.90	$200.30	$212.30
Assumed	8.8	9.1	27.6	24.5
Ceded	-61.3	-60	-186.5	-189.9
Net	13.1	19	41.4	46.9
Benefits and Other Changes in Insurance Policy Reserves:	'	'	'	'
Direct	324.1	150.8	876.9	579.7
Assumed	6.7	8.2	19.1	15.7
Ceded	-88.3	-51.8	-257.7	-163.7
Net	$242.50	$107.20	$638.30	$431.70

Reinsurance_Narrative_Details

Reinsurance - Narrative (Details) (Wilton Reassurance Company, USD $)	0 Months Ended
In Millions, unless otherwise specified	Jun. 17, 2013
Wilton Reassurance Company	'
Ceded Credit Risk [Line Items]	'
Settlement of Rescission of Reinsurance	$6.40
Gain on Rescission of Reinsurance Policy	$1.90

Related_Party_Transactions_Sum

Related Party Transactions - Summary of Affiliated Entity Operations (Details) (Front Street RE (Cayman) Ltd., USD $)	3 Months Ended	9 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2014
Front Street RE (Cayman) Ltd.	'	'
Related Party Transaction [Line Items]	'	'
Premiums	$0.20	$0.60
Net investment income	14.1	46.3
Gain (Loss) on Investments	9.8	21.1
Insurance and investment product fees and other	1.2	3.6
Total revenues	25.3	71.6
Policyholder Benefits and Claims Incurred, Net	-17.5	-49.9
Selling, General and Administrative Expense	-1.1	-4.7
Costs and Expenses	-18.6	-54.6
Operating income	$6.70	$17

Related_Party_Transactions_Rel

Related Party Transactions - Related Party Investments (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Sep. 30, 2013
Fixed Maturities Available For Sale | Salus Collateralized Loan Obligation	'	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'	'
Related Party Transaction, Net Investment Income	$3	$1.10	$9.20	$2.30	'
Asset carrying value	240.3	'	240.3	'	241.5
Accrued Investment Income	0.6	'	0.6	'	0.4
Total carrying value	240.9	'	240.9	'	241.9
Fixed Maturities Available For Sale | Fortress Investment Group Collateralized Loan Obligation	'	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'	'
Related Party Transaction, Net Investment Income	0.9	0	0.9	0	'
Asset carrying value	106.5	'	106.5	'	'
Accrued Investment Income	0.7	'	0.7	'	'
Total carrying value	107.2	'	107.2	'	'
Fixed Maturities Available For Sale | Leucadia National Corp Obligation	'	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'	'
Related Party Transaction, Net Investment Income	1.3	0	1.3	0	'
Asset carrying value	37.3	'	37.3	'	'
Accrued Investment Income	0.4	'	0.4	'	'
Total carrying value	37.7	'	37.7	'	'
Fixed Maturities Available For Sale | Jefferies Group Inc	'	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'	'
Related Party Transaction, Net Investment Income	0.9	0	2.6	0	'
Asset carrying value	69	'	69	'	'
Accrued Investment Income	1.4	'	1.4	'	'
Total carrying value	70.4	'	70.4	'	'
Equity Securities | Salus Preferred Stock	'	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'	'
Related Party Transaction, Net Investment Income	0	1.4	0	2.1	'
Other Invested Assets	'	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'	'
Asset carrying value	0.6	'	0.6	'	'
Accrued Investment Income	0	'	0	'	'
Total carrying value	0.6	'	0.6	'	'
Other Invested Assets | Salus 2013 Participations	'	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'	'
Related Party Transaction, Net Investment Income	3.8	2.1	13.8	2.1	'
Asset carrying value	168.1	'	168.1	'	157
Accrued Investment Income	1.4	'	1.4	'	1.5
Total carrying value	169.5	'	169.5	'	158.5
Related Party Loans and Investments | Salus Preferred Stock	'	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'	'
Asset carrying value	35	'	35	'	'
Accrued Investment Income	0	'	0	'	'
Total carrying value	35	'	35	'	'
Related Party Loans and Investments | HGI Energy Loan	'	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'	'
Related Party Transaction, Net Investment Income	1.1	2.8	3.4	3.4	'
Asset carrying value	70	'	70	'	70
Accrued Investment Income	0	'	0	'	1.6
Total carrying value	70	'	70	'	71.6
Related Party Loans and Investments | Salus 2012 Participations	'	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'	'
Related Party Transaction, Net Investment Income	0.2	0.3	0.5	3.1	'
Asset carrying value	12.6	'	12.6	'	27.3
Accrued Investment Income	0	'	0	'	0.1
Total carrying value	12.6	'	12.6	'	27.4
Related Party Loans and Investments | Salus Promissory Note	'	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'	'
Related Party Transaction, Net Investment Income	0.3	0.4	1	1.1	'
Asset carrying value	20	'	20	'	20
Accrued Investment Income	0.5	'	0.5	'	0
Total carrying value	20.5	'	20.5	'	20
Related Party Loans and Investments | Salus Revolver	'	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'	'
Related Party Transaction, Net Investment Income	0.2	0.1	0.4	0.1	'
Asset carrying value	10	'	10	'	'
Accrued Investment Income	0	'	0	'	'
Total carrying value	10	'	10	'	'
Related Party Loans and Investments | Frederick's of Hollywood	'	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'	'
Asset carrying value	11	'	11	'	'
Accrued Investment Income	0	'	0	'	'
Total carrying value	$11	'	$11	'	'

Related_Party_Transactions_Add

Related Party Transactions - Additional Information (Details) (USD $)

0 Months Ended

3 Months Ended

9 Months Ended

0 Months Ended

1 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2012

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Sep. 30, 2013

Jun. 30, 2014

Sep. 30, 2013

Jun. 30, 2014

Dec. 31, 2012

Jun. 30, 2014

Jun. 30, 2014

Jan. 31, 2014

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2014

Front Street RE (Cayman) Ltd.

Front Street RE (Cayman) Ltd.

Other Invested Assets

Fgl Reinsurance Agreement With Fsr

Leucadia National Corp Obligation

Frederick's of Hollywood

Salus Preferred Stock

Salus Preferred Stock

Net Realized Investment Gains

Net Realized Investment Gains

Net Realized Investment Gains

Net Realized Investment Gains

Other Embedded Derivative

Other Embedded Derivative

Other Embedded Derivative

Other Embedded Derivative

Other Embedded Derivative

Other Embedded Derivative

Related Party Loans and Investments

Related Party Loans and Investments

Net Realized Investment Gains

Net Realized Investment Gains

Net Realized Investment Gains

Net Realized Investment Gains

Net Realized Investment Gains

Net Realized Investment Gains

Other Invested Assets

Other Invested Assets

Related Party Transaction [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Change in fair value of reinsurance related embedded derivative

'

($21.20)

$0

($54.30)

$0

'

'

'

'

'

'

'

'

'

$73.50

$19.90

$176.90

$126.60

$0.90

$0

$0.90

$0

$0.60

$0.60

Related Party Transaction, Asset Par Value

'

'

'

'

'

'

'

'

'

'

37.3

'

30

'

'

'

'

'

'

'

'

'

'

'

Asset carrying value

'

'

'

'

'

'

'

'

0.6

'

'

11

'

35

'

'

'

'

'

'

'

'

'

'

Preferred Stock, Dividend Rate, Percentage

'

'

'

'

'

'

'

'

'

'

'

'

10.00%

'

'

'

'

'

'

'

'

'

'

'

Reinsurance Arrangement In Percentage

'

'

'

'

'

'

'

'

'

10.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Ceded premium allowance

15

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Reinsurance recoverable

'

3,675.40

'

3,675.40

'

3,728.60

1,281.70

1,365

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Funds Held under Reinsurance Agreements, Liability

'

$1,339.30

'

$1,339.30

'

$1,407.70

$1,301.20

$1,368.30

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Earnings_Per_Share_Summary_of_

Earnings Per Share - Summary of Basic and Diluted EPS (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, except Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Earnings Per Share [Abstract]	'	'	'	'
Net income	$56.50	$53.20	$124	$237
Weighted-average common shares outstanding - basic	58,270,822	47,000,000	55,194,513	47,000,000
Dilutive effect of unvested restricted stock and unvested performance restricted stock	167,000	'	113,000	'
Dilutive effect of stock options	37,000	'	22,000	'
Weighted-average shares outstanding - diluted	58,474,938	47,000,000	55,329,523	47,000,000
Net income per common share:	'	'	'	'
Basic (in dollars per share)	$0.97	$1.13	$2.25	$5.04
Diluted (in dollars per share)	$0.97	$1.13	$2.24	$5.04

Insurance_Subsidiary_Financial1

Insurance Subsidiary Financial Information and Regulatory Matters - Narrative (Details) (USD $)	0 Months Ended
In Millions, unless otherwise specified	Oct. 07, 2013	Nov. 01, 2013	Apr. 06, 2011
Insurance [Abstract]	'	'	'
Statutory Accounting Practices, Change in Statutory Capital and Surplus Required as a Result of Electing New Statutory Accounting Practice	'	$11.50	'
Statutory Accounting Practices, Statutory Capital and Surplus, Unassigned Balance Netted Against Additional Paid in Capital	'	'	805.8
Commitment by Parent Company not to Exercise Control, Period	'7 years	'	'
Statutory Accounting Practices, Statutory Capital and Surplus Required, Percent	225.00%	'	'
Collateral Requirement, Regulatory Agreement	$18.50	'	'