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SCHEDULE III SUPPLEMENTARY INSURANCE INFORMATION (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
SUPPLEMENTARY INSURANCE INFORMATION |  |  |
Net investment income | $ 79.7 | $ 59.0 | $ 56.0
HG Global-BAM |  |  |
SUPPLEMENTARY INSURANCE INFORMATION |  |  |
Deferred acquisition costs | 22.1 | 19.0 | 14.8
Future policy benefits, losses, claims and loss expenses | 0.0 | 0.0 | 0.0
Unearned premiums | 198.4 | 176.0 | 136.8
Other policy claims and benefits payable | 0.0 | 0.0 | 0.0
Premiums earned | 16.3 | 13.9 | 9.4
Net investment income | 21.6 | 16.7 | 12.3
Benefits, claims, losses, and settlement expenses | 0.0 | 0.0 | 0.0
Amortization of deferred policy acquisition costs | 5.7 | 5.3 | 4.0
Other operating expenses | 0.4 | 0.4 | 0.4
Premiums written | 38.7 | 52.9 | 63.2
Net investment income | 21.6 | 16.7 | 12.3
Other Operations |  |  |
SUPPLEMENTARY INSURANCE INFORMATION |  |  |
Deferred acquisition costs | 0.0 | 0.0 | 0.0
Future policy benefits, losses, claims and loss expenses | 0.0 | 0.0 | 0.0
Unearned premiums | 0.0 | 0.0 | 0.0
Other policy claims and benefits payable | 0.0 | 0.0 | 0.0
Premiums earned | 0.0 | 0.0 | 1.0
Net investment income | 0.0 | 0.0 | 0.0
Benefits, claims, losses, and settlement expenses | 0.0 | 0.0 | 1.1
Amortization of deferred policy acquisition costs | 0.0 | 0.0 | 0.1
Other operating expenses | 0.0 | 0.0 | 0.0
Premiums written | 0.0 | 0.0 | 0.9
Non-insurance | Operating Segments |  |  |
SUPPLEMENTARY INSURANCE INFORMATION |  |  |
Net investment income | $ 43.4 | $ 42.3 | $ 43.7

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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=116637232&loc=SL114874131-224263 + Details
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