Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Investments [Abstract]
Fixed maturity securities, available-for-sale at fair value	$ 4,028.9	$ 3,391.6
Equity securities	92.5	200.5
Mortgage loans	183.5	137.6
Policy loans	19.1	19.8
Other invested assets	85.0	72.5
Total investments	4,409.0	3,822.0
Cash and cash equivalents	239.0	325.0
Accounts receivable, net	337.8	379.2
Recoverable from reinsurers	953.7	1,000.2
Deferred tax asset	2.7	2.1
Property, plant and equipment, net	405.8	376.3
Goodwill	126.8	171.7
Intangibles, net	227.0	219.2
Other assets	256.5	208.1
Total assets	6,958.3	6,503.8
Liabilities, temporary equity and stockholders’ equity
Life, accident and health reserves	4,567.1	4,562.1
Annuity reserves	236.4	245.2
Value of business acquired	221.1	244.6
Accounts payable and other current liabilities	339.6	344.9
Deferred tax liability	83.7	30.3
Debt obligations	839.3	743.9
Other liabilities	205.9	110.8
Total liabilities	6,493.1	6,281.8
Commitments and contingencies
Temporary equity
Preferred stock	10.3	20.3
Redeemable noncontrolling interest	11.3	8.0
Total temporary equity	21.6	28.3
Stockholders’ equity
Common stock	0.0	0.0
Additional paid-in capital	281.1	260.5
Treasury stock, at cost: 742,824 and 483,579 shares at December 31, 2019 and December 31, 2018, respectively	(3.3)	(2.6)
Accumulated deficit	(96.7)	(57.2)
Accumulated other comprehensive income (loss)	168.7	(112.6)
Total HC2 Holdings, Inc. stockholders’ equity	349.8	88.1
Noncontrolling interest	93.8	105.6
Total stockholders’ equity	443.6	193.7
Total liabilities, temporary equity and stockholders’ equity	$ 6,958.3	$ 6,503.8