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v2.4.1.9

Reinsurance - Effect of Reinsurance on Premiums Earned, Benefits Incurred and Reserve Changes (Detail) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 6 Months Ended
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Mar. 31, 2015 | Mar. 31, 2014 | Mar. 31, 2015 | Mar. 31, 2014
Effects of Reinsurance [Line Items] |  |  |  |
Direct Premiums Earned | $ 64.1 us-gaap_DirectPremiumsEarned | $ 67.0 us-gaap_DirectPremiumsEarned | $ 127.3 us-gaap_DirectPremiumsEarned | $ 134.7 us-gaap_DirectPremiumsEarned
Policyholder Benefits and Claims Incurred, Direct | 249.9 us-gaap_PolicyholderBenefitsAndClaimsIncurredGross | 256.4 us-gaap_PolicyholderBenefitsAndClaimsIncurredGross | 554.1 us-gaap_PolicyholderBenefitsAndClaimsIncurredGross | 552.8 us-gaap_PolicyholderBenefitsAndClaimsIncurredGross
Assumed Premiums Earned | 8.6 us-gaap_AssumedPremiumsEarned | 9.5 us-gaap_AssumedPremiumsEarned | 17.4 us-gaap_AssumedPremiumsEarned | 18.8 us-gaap_AssumedPremiumsEarned
Policyholder Benefits and Claims Incurred, Assumed | 19.1 us-gaap_ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed | 9.9 us-gaap_ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed | 29.1 us-gaap_ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed | 15.3 us-gaap_ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed
Ceded Premiums Earned | 58.2 us-gaap_CededPremiumsEarned | 61.7 us-gaap_CededPremiumsEarned | 118.5 us-gaap_CededPremiumsEarned | 124.8 us-gaap_CededPremiumsEarned
Policyholder Benefits and Claims Incurred, Ceded | 73.8 us-gaap_ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded | 69.8 us-gaap_ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded | 146.5 us-gaap_ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded | 136.9 us-gaap_ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded
Premiums Earned, Net, Life | 14.5 us-gaap_PremiumsEarnedNetLife | 14.8 us-gaap_PremiumsEarnedNetLife | 26.2 us-gaap_PremiumsEarnedNetLife | 28.7 us-gaap_PremiumsEarnedNetLife
Benefits and other changes in policy reserves | $ 195.2 us-gaap_PolicyholderBenefitsAndClaimsIncurredNet | $ 196.5 us-gaap_PolicyholderBenefitsAndClaimsIncurredNet | $ 436.7 us-gaap_PolicyholderBenefitsAndClaimsIncurredNet | $ 431.2 us-gaap_PolicyholderBenefitsAndClaimsIncurredNet

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- Definition Amount of earned premiums assumed from other entities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 2 -Subparagraph (SX 210.12-17) -URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e574992-122915 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.1) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 605 -Section 50 -Paragraph 1 -Subparagraph (b),(c)(2) -URI http://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547 + Details
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- Definition Amount of earned premiums ceded to other entities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 2 -Subparagraph (SX 210.12-17) -URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e574992-122915 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.1) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 605 -Section 50 -Paragraph 1 -Subparagraph (b),(c)(2) -URI http://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 605 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6486662&loc=d3e27175-158546 + Details
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- Definition Amount, before premiums ceded to other entities and premiums assumed by the entity, of premiums earned. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 2 -Subparagraph (SX 210.12-17) -URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e574992-122915 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.1) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 605 -Section 50 -Paragraph 1 -Subparagraph (b),(c)(1) -URI http://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547 + Details
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- Details
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- Definition Amount, before effect of policies assumed or ceded, of expense related to provision for policy benefits and costs incurred. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.5) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 + Details
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- Definition Amount, after effects of policies assumed or ceded, of expense related to the provision for policy benefits and costs incurred. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.5) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6480758&loc=d3e6811-158387 + Details
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- Definition Amount, after premiums ceded to other entities and premiums assumed by the entity, of life premiums earned. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.1) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 605 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6486662&loc=d3e27175-158546 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 605 -Section 50 -Paragraph 1 -Subparagraph (b),(c) -URI http://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547 + Details
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- Definition Amount of policy benefits and costs incurred for policies assumed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6480758&loc=d3e6811-158387 + Details
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- Definition Amount of reduction of provision for policy benefits and costs incurred for policies ceded. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6480758&loc=d3e6811-158387 + Details
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