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INVESTMENTS - Net Investment Income (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Net Investment Income [Line Items] |  |  |  |
Total | $ 0.9 | $ 1.4 | $ 1.9 | $ 3.4
Investment expense | (0.2) | (0.1) | (0.3) | (0.2)
Net investment income | 0.7 | 1.3 | 1.6 | 3.2
Interest on bonds |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Total | 0.6 | 1.2 | 1.3 | 2.1
Interest on deposits and cash equivalents |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Total | $ 0.3 | $ 0.2 | $ 0.6 | $ 1.3

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- Definition Amount, before investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Excludes realized gain (loss) on investments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.2) -URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 + Details
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- Definition Amount, after investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Excludes realized gain (loss) on investments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(2)) -URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 + Details
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