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Policyholder Contract Liabilities - Supplemental Financial Information (Details) - USD ($) $ in Millions | Mar. 31, 2021 | Dec. 31, 2020
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Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Policyholder Obligations | $ 466.5 | $ 467.0
Federal Home Loan Bank of Chicago | United Insurance Company of America |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Fair Value of Collateral Pledged | 510.5 | 530.5
FHLB of Chicago Common Stock Owned at Cost | 11.8 | 11.8
Federal Home Loan Bank of Chicago | United Insurance Company of America | FHLB Funding Agreements |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Policyholder Obligations | $ 407.5 | $ 407.8

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- Definition Carrying value as of the balance sheet date of the sum of the obligations to contract holders to provide to them an agreed upon rate of return pursuant to the terms of the underlying contract. These contracts represent lending by the contract holders to the entity in return for a guaranteed (primarily fixed) interest rate until maturity, unless called earlier if the contracts provide that option to the contract holders (usually institutions). There is little or no insurance risk for the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.14) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 325 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=75031641&loc=d3e63345-112809 + Details
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- Definition Fair value of the securities pledged as collateral against securities loaned. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226013-175313 + Details
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