INNOVATE (VATE) 10-Q 11 May 20 2020 FY Quarterly report Financial data

Cover Page

Cover Page - shares	3 Months Ended
	Mar. 31, 2020	Apr. 30, 2020
Cover [Abstract]
Document Type	10-Q
Document Period End Date	Mar. 31, 2020
Document Transition Report	false
Entity File Number	001-35210
Entity Registrant Name	HC2 HOLDINGS, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	54-1708481
Entity Address, Address Line One	450 Park Avenue
Entity Address, Address Line Two	30th Floor
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10022
City Area Code	212
Local Phone Number	235-2690
Title of 12(b) Security	Common Stock, par value $0.001 per share
Trading Symbol	HCHC
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		46,550,384
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Entity Central Index Key	0001006837
Current Fiscal Year End Date	--12-31
Document Quarterly Report	true

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Revenue	$ 383.4	$ 362.5
Life, accident and health earned premiums, net	28.6	29.9
Net investment income	51.9	51.1
Net realized and unrealized gains (losses) on investments	(19.1)	5.5
Net revenue	444.8	449
Operating expenses
Cost of revenue	346.1	324.5
Policy benefits, changes in reserves, and commissions	72.4	52.7
Selling, general and administrative	52.3	46.9
Depreciation and amortization	0.6	0.3
Other operating income	0.2	(1)
Total operating expenses	471.6	423.4
Income (loss) from operations	(26.8)	25.6
Interest expense	(21.3)	(18.8)
Loss on early extinguishment or restructuring of debt	(5.8)	0
Other income, net	2.8	3.4
Loss from equity investees	(2.5)	(5.9)
(Loss) income from continuing operations before income taxes	(53.6)	4.3
Income tax benefit (expense)	12.6	(4)
(Loss) income from continuing operations	(41)	0.3
Less: Loss from discontinued operations, net of tax	(60)	(6.6)
Net loss	(101)	(6.3)
Net loss attributable to noncontrolling interest and redeemable noncontrolling interest	17.9	3.5
Net loss attributable to HC2 Holdings, Inc.	(83.1)	(2.8)
Less: Preferred dividends, deemed dividends and repurchase gains	0.4	(1.2)
Net loss attributable to common stock and participating preferred stockholders	$ (83.5)	$ (1.6)
(Loss) income per share - continuing operations
Net (loss) income attributable to continuing operations - basic (in usd per share)	$ (0.85)	$ 0.08
Net (loss) income attributable to continuing operations - diluted (in usd per share)	(0.85)	0.04
Loss per share - discontinued operations
Basic (in usd per share)	(0.97)	(0.12)
Diluted (in usd per share)	(0.97)	(0.09)
Loss per share - Net loss attributable to common stock and participating preferred stockholders
Basic (in usd per share)	(1.82)	(0.03)
Diluted (in usd per share)	$ (1.82)	$ (0.05)
Weighted average common shares outstanding:
Basic (in shares)	45.9	44.8
Diluted (in shares)	45.9	59.7

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net loss	$ (101)	$ (6.3)
Other comprehensive income (loss)
Foreign currency translation adjustment	0.2	0.9
Unrealized gains (losses) on available-for-sale securities	(276)	148.2
Disposition of subsidiary	22.8	0
Other comprehensive income (loss)	(253)	149.1
Comprehensive income (loss)	(354)	142.8
Comprehensive loss (income) attributable to noncontrolling interests and redeemable noncontrolling interests	(8.9)	3.2
Comprehensive income (loss) attributable to HC2 Holdings, Inc.	$ (362.9)	$ 146

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Investments [Abstract]
Fixed maturity securities, available-for-sale at fair value	$ 3,753	$ 4,028.9
Equity securities	72.4	92.5
Mortgage loans	142.2	183.5
Policy loans	18.9	19.1
Other invested assets	70.3	68.1
Total investments	4,056.8	4,392.1
Cash and cash equivalents	186.9	228.8
Accounts receivable, net	333.3	311.8
Recoverable from reinsurers	958.4	953.7
Deferred tax asset	2.2	2.7
Property, plant and equipment, net	223.4	223.7
Goodwill	112	112.5
Intangibles, net	220.1	221.7
Assets held for sale	0	323.3
Other assets	246	188
Total assets	6,339.1	6,958.3
Liabilities, temporary equity and stockholders’ equity
Life, accident and health reserves	4,593.9	4,567.1
Annuity reserves	235.4	236.4
Value of business acquired	215.1	221.1
Accounts payable and other current liabilities	334.4	306.2
Deferred tax liability	24.4	83.7
Debt obligations	686	773.6
Liabilities held for sale	0	153.9
Other liabilities	170.8	151.1
Total liabilities	6,260	6,493.1
Commitments and contingencies
Temporary equity
Preferred stock	10.3	10.3
Redeemable noncontrolling interest	8.3	11.3
Total temporary equity	18.6	21.6
Stockholders’ equity
Common stock	0	0
Additional paid-in capital	282.7	281.1
Treasury stock, at cost: 1,109,751 and 742,824 shares at March 31, 2020 and December 31, 2019, respectively	(4.2)	(3.3)
Accumulated deficit	(179.8)	(96.7)
Accumulated other comprehensive income (loss)	(84.6)	168.7
Total HC2 Holdings, Inc. stockholders’ equity	14.1	349.8
Noncontrolling interest	46.4	93.8
Total stockholders’ equity	60.5	443.6
Total liabilities, temporary equity and stockholders’ equity	$ 6,339.1	$ 6,958.3

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Common stock, par value (in usd per share)	$ 0.001	$ 0.001
Common stock (in shares)	80,000,000	80,000,000
Common stock, shares issued (in shares)	47,571,416	46,810,676
Common stock, shares outstanding (in shares)	46,461,665	46,067,852
Treasury stock (in shares)	1,109,751	742,824

Consolidated Statement of Stock

Consolidated Statement of Stockholders' Equity - USD ($) $ in Millions	Total	Total HC2 Stockholders' Equity	Common Stock	Additional Paid-In Capital	Treasury Stock	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)	Non- controlling Interest	Temporary Equity
Beginning balance (in shares) at Dec. 31, 2018			44,900,000
Beginning balance at Dec. 31, 2018	$ 193.7	$ 88.1	$ 0	$ 260.5	$ (2.6)	$ (57.2)	$ (112.6)	$ 105.6	$ 28.3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation	2.5	2.5		2.5
Fair value adjustment of redeemable noncontrolling interest	0.2	0.2		0.2					(0.2)
Taxes paid in lieu of shares issued for share-based compensation (in shares)			(200,000)
Taxes paid in lieu of shares issued for share-based compensation	(0.6)	(0.6)			(0.6)
Preferred stock dividend	(0.3)	(0.3)		(0.3)
Issuance of common stock (in shares)			900,000
Purchase of preferred stock by subsidiary	1.7	1.7		1.7					(10)
Transactions with noncontrolling interests	(3.5)	(0.5)		(0.5)			0	(3)	0
Other	0.3	0.3		0.3
Net income (loss)	(5.9)	(2.8)				(2.8)		(3.1)
Net loss	(6.3)								(0.4)
Other comprehensive income (loss)	149.1	148.8					148.8	0.3	1.3
Ending balance (in shares) at Mar. 31, 2019			45,600,000
Ending balance at Mar. 31, 2019	332.2	233.1	$ 0	264.4	(3.2)	(64.3)	36.2	99.1	17.6
Beginning balance (in shares) at Dec. 31, 2019			46,100,000
Beginning balance at Dec. 31, 2019	443.6	349.8	$ 0	281.1	(3.3)	(96.7)	168.7	93.8	21.6
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation	2.6	2.6		2.6					4.1
Fair value adjustment of redeemable noncontrolling interest	$ (4.1)	(4.1)		(4.1)
Exercise of stock options (in shares)	0
Taxes paid in lieu of shares issued for share-based compensation (in shares)			(400,000)
Taxes paid in lieu of shares issued for share-based compensation	$ (0.9)	(0.9)			(0.9)
Preferred stock dividend	(0.2)	(0.2)		(0.2)
Issuance of common stock (in shares)			800,000
Transactions with noncontrolling interests	(36.8)	3.3		3.3			0	(40.1)	(5.5)
Net income (loss)	(98.1)	(83.1)				(83.1)		(15)
Net loss	(101)
Other comprehensive income (loss)	(245.6)	(253.3)					(253.3)	7.7
Ending balance (in shares) at Mar. 31, 2020			46,500,000
Ending balance at Mar. 31, 2020	$ 60.5	$ 14.1	$ 0	$ 282.7	$ (4.2)	$ (179.8)	$ (84.6)	$ 46.4	$ 18.6

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net loss	$ (101)	$ (6.3)
Less: Loss from discontinued operations, net of tax	(60)	(6.6)
(Loss) income from continuing operations	(41)	0.3
Adjustments to reconcile (loss) income to cash provided by continuing operating activities
Depreciation and amortization	2.9	2.4
Amortization of deferred financing costs and debt discount	3.8	2.7
Amortization of (discount) premium on investments	2	1.6
Loss on early extinguishment or restructuring of debt	5.8	0
Loss from equity investees	2.5	5.9
Deferred income taxes	19.7	(0.6)
Net realized and unrealized gains on investments	18.3	(5.8)
Other operating activities	3	(0.4)
Changes in assets and liabilities, net of acquisitions and disposition:
Accounts receivable	(21.6)	50.8
Recoverable from reinsurers	(4.8)	1.9
Other assets	(53.7)	(5.6)
Life, accident and health reserves	27.1	7.5
Accounts payable and other current liabilities	55.5	(24.9)
Other liabilities	16.6	(1.8)
Cash provided by continuing operating activities	36.1	34
Cash (used in) provided by discontinued operating activities	(0.8)	4.1
Cash provided by operating activities	35.3	38.1
Cash flows from investing activities
Purchase of property, plant and equipment	(6.1)	(3.3)
Disposal of property, plant and equipment	0.5	1
Purchase of investments	(278.2)	(257.9)
Sale of investments	175	199
Maturities and redemptions of investments	31	13.9
Proceeds from divestiture of businesses	144	0
Cash paid for acquisitions, net	0	(6)
Other investing activities	0.9	(3.2)
Cash provided by (used in) continuing investing activities	67.1	(56.5)
Cash used in discontinued investing activities	(7)	(1.9)
Cash provided by (used in) investing activities	60.1	(58.4)
Cash flows from financing activities
Proceeds from debt obligations	3.9	16.4
Principal payments on debt obligations	(101.3)	(2.6)
Cash paid by subsidiary to purchase HC2 preferred stock	0	(8.3)
Annuity receipts	0.4	0.5
Annuity surrenders	(3.4)	(4.4)
Transactions with noncontrolling interests	(42.5)	(3.5)
Other financing activities	(2.9)	(1.9)
Cash used in continuing financing activities	(145.8)	(3.8)
Cash used in discontinued financing activities	(2.4)	(2.6)
Cash used in financing activities	(148.2)	(6.4)
Effects of exchange rate changes on cash, cash equivalents and restricted cash	0.5	0.1
Net change in cash, cash equivalents and restricted cash	(42.1)	(26.2)
Cash, cash equivalents and restricted cash, beginning of period	230.4	321.3
Cash, cash equivalents and restricted cash, end of period	188.3	295.1
Supplemental cash flow information:
Cash paid for interest	6.1	3.3
Cash paid for taxes, net of (refunds)	$ (0.1)	$ 0.2

Basic and Diluted Income Per Co

Basic and Diluted Income Per Common Share	3 Months Ended
	Mar. 31, 2020
Earnings Per Share [Abstract]
Basic and Diluted Income Per Common Share	21. Basic and Diluted Income Per Common Share Earnings per share ("EPS") is calculated using the two-class method, which allocates earnings among common stock and participating securities to calculate EPS when an entity's capital structure includes either two or more classes of common stock or common stock and participating securities. Unvested share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents (whether paid or unpaid) are participating securities. As such, shares of any unvested restricted stock of the Company are considered participating securities. The dilutive effect of options and their equivalents (including non-vested stock issued under stock-based compensation plans), is computed using the "treasury" method as this measurement was determined to be more dilutive between the two available methods in each period. The Company had zero dilutive common share equivalents during the three months ended March 31, 2020 due to the results being a loss from continuing operations and discontinued operations, net of tax. The following table presents a reconciliation of net income (loss) used in basic and diluted EPS calculations (in millions, except per share amounts): Three Months Ended March 31, 2020 2019 Amounts attributable to HC2 common and participating preferred stockholders Loss from continuing operations $ (41.0) $ 0.3 Net loss attributable to noncontrolling interest and redeemable noncontrolling interest 2.6 2.4 Loss (income) from continuing operations attributable to the Company (38.4) 2.7 Less: Preferred dividends, deemed dividends and repurchase gains 0.4 (1.2) (Loss) income from continuing operations attributable to HC2 common stockholders (38.8) 3.9 Loss from discontinued operations (including loss on disposal of $39.3 million) (60.0) (6.6) Net loss attributable to noncontrolling interest and redeemable noncontrolling interest 15.3 1.1 Loss from discontinued operations, net of tax and noncontrolling interest $ (44.7) $ (5.5) Net loss attributable to common stock and participating preferred stockholders $ (83.5) $ (1.6) Earnings allocable to common shares: Participating shares at end of period: Weighted-average common stock outstanding 45.9 44.8 Unvested restricted stock — 0.4 Preferred stock (as-converted basis) — 2.2 Total 45.9 47.4 Percentage of (loss) income allocated to: Common stock 100.0 % 94.5 % Unvested restricted stock — % 0.8 % Preferred stock — % 4.6 % Numerator for earnings per share, basic: Net (loss) income from continuing operations attributable to common stock, basic $ (38.8) $ 3.7 Net loss from discontinued operations attributable to common stock, basic and diluted $ (44.7) $ (5.2) Net loss attributable to common stock and participating preferred stockholders, basic and diluted $ (83.5) $ (1.5) Earnings allocable to common shares, diluted: Numerator for earnings per share, diluted Effect of assumed shares under treasury stock method for stock options and restricted shares and if-converted method for convertible instruments $ — $ (1.6) Net (loss) income from continuing operations attributable to common stock, diluted $ (38.8) $ 2.1 Net (loss) income from discontinued operations attributable to common stock, diluted $ (44.7) $ (5.2) Net loss attributable to common stock and participating preferred stockholders, diluted $ (83.5) $ (3.1) Denominator for basic and dilutive earnings per share: Weighted average common shares outstanding - basic 45.9 44.8 Effect of assumed shares under treasury stock method for stock options and restricted shares and if-converted method for convertible instruments — 14.9 Weighted average common shares outstanding - diluted 45.9 59.7 (Loss) income per share - continuing operations Basic: $ (0.85) $ 0.08 Diluted: $ (0.85) $ 0.04 Loss per share - Discontinued operations Basic: $ (0.97) $ (0.12) Diluted: $ (0.97) $ (0.09) Loss per share - Net loss attributable to common stock and participating preferred stockholders Basic: $ (1.82) $ (0.03) Diluted: $ (1.82) $ (0.05)

Organization and Business

Organization and Business	3 Months Ended
	Mar. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Business	1. Organization and Business HC2 Holdings, Inc. ("HC2" and, together with its consolidated subsidiaries, the "Company", "we" and "our") is a diversified holding company which seeks to acquire and grow attractive businesses that we believe can generate long-term sustainable free cash flow and attractive returns. While the Company generally intends to acquire controlling equity interests in its operating subsidiaries, the Company may invest to a limited extent in a variety of debt instruments or noncontrolling equity interest positions. The Company’s shares of common stock trade on the NYSE under the symbol "HCHC". The Company currently has seven reportable segments based on management’s organization of the enterprise - Construction, Energy, Telecommunications, Insurance, Life Sciences, Broadcasting, and Other, which includes businesses that do not meet the separately reportable segment thresholds. 1. Our Construction segment is comprised of DBM Global Inc. ("DBMG") and its wholly-owned subsidiaries. DBMG is a fully integrated Building Information Modelling modeler, detailer, fabricator and erector of structural steel and heavy steel plate. DBMG models, details, fabricates and erects structural steel for commercial and industrial construction projects such as high- and low-rise buildings and office complexes, hotels and casinos, convention centers, sports arenas, shopping malls, hospitals, dams, bridges, mines and power plants. DBMG also fabricates trusses and girders and specializes in the fabrication and erection of large-diameter water pipe and water storage tanks. Through GrayWolf, DBMG provides services including maintenance, repair, and installation to a diverse range of end markets in order to provide high-quality outage, turnaround, and new installation services to customers. Through Aitken Manufacturing, DBMG manufactures pollution control scrubbers, tunnel liners, pressure vessels, strainers, filters, separators and a variety of customized products. The Company maintains an approximately 92% controlling interest in DBMG. 2. Our Energy segment is comprised of American Natural Energy Corp. (f/k/a American Natural Gas, Inc.) ("ANG"). ANG is a premier distributor of natural gas motor fuel. ANG designs, builds, owns, acquires, operates and maintains compressed natural gas fueling stations for transportation vehicles. The Company maintains an approximately 69% controlling interest in ANG. 3. Our Telecommunications segment is comprised of PTGi International Carrier Services, Inc. ("ICS"). ICS operates a telecommunications business including a network of direct routes and provides premium voice communication services for national telecommunications operators, mobile operators, wholesale carriers, prepaid operators, voice over internet protocol service operators and internet service providers. ICS provides a quality service via direct routes and by forming strong relationships with carefully selected partners. The Company maintains a 100% interest in ICS. 4. Our Insurance segment is comprised of Continental Insurance Group Ltd. ("CIG") and its wholly-owned subsidiary Continental General Insurance Company ("CGI"). CGI provides long-term care, life, annuity, and other accident and health coverage that help protect policy and certificate holders from the financial hardships associated with illness, injury, loss of life, or income continuation. The Company maintains a 100% interest in CIG. 5. Our Life Sciences segment is comprised of Pansend Life Sciences, LLC ("Pansend"). Pansend maintains controlling interests of approximately 80% in Genovel Orthopedics, Inc. ("Genovel"), which seeks to develop products to treat early osteoarthritis of the knee and approximately 64% in R2 Technologies, Inc. ("R2"), which develops aesthetic and medical technologies for the skin. Pansend also invests in other early stage or developmental stage healthcare companies including an approximately 47% interest in MediBeacon Inc., and an investment in Triple Ring Technologies, Inc. 6. Our Broadcasting segment is comprised of HC2 Broadcasting Holdings Inc. ("HC2 Broadcasting") and its subsidiaries. HC2 Broadcasting strategically acquires and operates over-the-air broadcasting stations across the United States. In addition, HC2 Broadcasting, through its wholly-owned subsidiary, HC2 Network Inc. ("Network"), operates Azteca America, a Spanish-language broadcast network offering high quality Hispanic content to a diverse demographic across the United States. The Company maintains an approximately 98% controlling interest in HC2 Broadcasting and an approximately 50% controlling interest in DTV America Corporation ("DTV") as well as approximately 10% proxy and voting rights from minority holders.

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2020
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2. Summary of Significant Accounting Policies Principles of Consolidation The Condensed Consolidated Financial Statements include the accounts of the Company, its wholly owned subsidiaries and all other subsidiaries over which the Company exerts control. All intercompany profits, transactions and balances have been eliminated in consolidation. As of March 31, 2020, the results of DBMG, GMH, ANG, ICS, CIG, Genovel, R2, and HC2 Broadcasting have been consolidated into the Company’s results based on guidance from the Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC" 810, Consolidation) . The remaining interests not owned by the Company are presented as a noncontrolling interest component of total equity. Basis of Presentation The accompanying unaudited Condensed Consolidated Financial Statements of the Company included herein have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission ("SEC"). The financial statements reflect all adjustments that are, in the opinion of management, necessary for a fair statement of such information. All such adjustments are of a normal recurring nature. Certain information and note disclosures, including a description of significant accounting policies normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP"), have been condensed or omitted pursuant to such rules and regulations. Certain prior amounts have been reclassified or combined to conform to the current year presentation. These interim financial statements should be read in conjunction with the Company’s annual Consolidated Financial Statements and notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2019, filed with the SEC on March 16, 2020. The results of operations for the three months ended March 31, 2020 are not necessarily indicative of the results for any subsequent periods or the entire fiscal year ending December 31, 2020. Use of Estimates and Assumptions The preparation of the Company’s Condensed Consolidated Financial Statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates and assumptions used. COVID-19 There are many uncertainties regarding the current coronavirus ("COVID-19") pandemic, and the Company is closely monitoring the impact of the COVID-19 pandemic on all aspects of its business, including how it will impact its customers, employees, suppliers, vendors, business partners and distribution channels. We are unable to predict the impact that COVID-19 will have on its financial position and operating results due to numerous uncertainties. The Company expects to continue to assess the evolving impact of the COVID-19 pandemic. Statement of Cash Flows The following table provides a reconciliation of cash and cash equivalents and restricted cash to amounts reported within the Condensed Consolidated Balance Sheets and Condensed Consolidated Statements of Cash Flows (in millions): March 31, 2020 2019 Cash and cash equivalents, beginning of period $ 228.8 $ 315.9 Restricted cash included in other assets 1.6 5.4 Total cash and cash equivalents and restricted cash $ 230.4 $ 321.3 Cash and cash equivalents, end of period $ 186.9 $ 293.5 Restricted cash included in other assets 1.4 1.6 Total cash and cash equivalents and restricted cash $ 188.3 $ 295.1 Reclassification Certain previous year amounts have been reclassified to conform with current year presentations, including: • The reclassification of GMSL's results to discontinued operations. Further, the reclassification of prior period assets and liabilities have been classified as held for sale. See Note 3. Discontinued Operations for further information; • As a result of the sale of GMSL, and in accordance with ASC 280, the Company no longer considers the results of operations and Balance Sheets of GMH and its subsidiaries as a separate segment. Formerly the Marine Services segment, these entities and the investment in HMN have been reclassified to the Other segment. See Note 20. Operating Segment and Related Information for further information; and • The restatement of prior year Earnings per share as a result of the discontinued operations noted above. This includes presenting EPS for Net (loss) income from continuing operations, Net (loss) income from discontinuing operations, and Net (loss) income. See Note 21. Basic and Diluted Income Per Common Share for further details. Accounting Pronouncements Adopted in the Current Year The Company has implemented all new accounting pronouncements that are in effect and that may impact its Condensed Consolidated Financial Statements. The Company does not believe that there are any new accounting pronouncements issued since the filing of its 2019 Form 10-K that will have a material impact on its financial condition, results of operations or liquidity. Accounting Pronouncements to be Adopted Subsequent to December 31, 2020 Credit Loss Standard ASU 2016-13, Financial Instruments - Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments , was issued by FASB in June 2016. This standard is effective January 1, 2020 (with early adoption permitted), and will impact, at least to some extent, the Company's accounting and disclosure requirements for it's recoverable from reinsurers, accounts receivable, and mortgage loans. The FASB has voted to delay the effective date of ASU 2016-13 to January 1, 2023 for smaller reporting companies with a revised ASU in the fourth quarter of 2019. Currently, the Company continues to focus on developing models and procedures, with testing and refinement of models occurring in 2020 and 2021 with parallel testing to be performed in 2022. Available for sale fixed maturity securities are not in scope of the new credit loss model, but will undergo targeted improvements to the current reporting model including the establishment of a valuation allowance for credit losses versus the current direct write down approach. The Company will continue to identify any other financial assets not excluded from scope. The Company plans to use the modified retrospective method which will include a cumulative effect adjustment on the balance sheet as of the beginning of the fiscal year of adoption. However, prospective application is required for purchased credit deteriorated assets previously accounted for under ASU 310-39 for debt securities for which an other-than-temporary impairment ("OTTI") was recognized prior to the date of adoption. The Company does not currently expect to early adopt this standard and is currently evaluating the impact of this new accounting guidance on its Condensed Consolidated Financial Statements. Outlined below are key areas of change, although there are other changes not noted below: • Financial assets (or a group of financial assets) measured at amortized cost will be required to be presented at the net amount expected to be collected, with an allowance for credit losses deducted from the amortized cost basis, resulting in a net carrying value that reflects the amount the entity expects to collect on the financial asset at purchase. • Credit losses relating to available for sale fixed maturity securities will be recorded through an allowance for credit losses, rather than reductions in the amortized cost of the securities and is anticipated to increase volatility in the Company's Condensed Consolidated Statements of Operations. The allowance methodology recognizes that value may be realized either through collection of contractual cash flows or through the sale of the security. Therefore, the amount of the allowance for credit losses will be limited to the amount by which fair value is below amortized cost because the classification as available for sale is premised on an investment strategy that recognizes that the investment could be sold at fair value, if cash collection would result in the realization of an amount less than fair value. • The Company's Condensed Consolidated Statements of Operations will reflect the measurement of expected credit losses for newly recognized financial assets as well as the expected increases or decreases (including the reversal of previously recognized losses) of expected credit losses that have taken place during the period. The measurement of expected credit losses is based on relevant information about past events, including historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amount. • Disclosures will be required to include information around how the credit loss allowance was developed, further details on information currently disclosed about credit quality of financing receivables and net investments in leases, and a rollforward of the allowance for credit losses for available for sale fixed maturity securities as well as an aging analysis for securities that are past due. The Company anticipates a significant impact on the systems, processes and controls. While the requirements of the new guidance represent a material change from existing GAAP, the underlying economics of items in scope and related cash flows are unchanged. Focus areas will include, but not be limited to: (i) updating procedures to reflect new guidance requiring establishment of allowance for credit losses on available for sale debt securities; (ii) establishing procedures to review reinsurance risk to include but not limited to review of reinsurer ratings, trust agreements where applicable and historical and current performance; (iii) establishing procedures to identify and review all remaining financial assets within scope; and (iv) developing, testing, and implementing controls for newly developed procedures, as well as for additional annual reporting requirements. Long-Duration Contracts ASU 2018-12, Financial Services - Insurance (Topic 944): Targeted Improvements to the Accounting for Long-Duration Contracts , was issued by the FASB in August 2018 and is expected to have a significant impact on the Company’s Condensed Consolidated Financial Statements and Notes to the Condensed Consolidated Financial Statements. The standard is effective January 1, 2021 (with early adoption permitted), and will impact, at least to some extent, Company's accounting and disclosure requirements for it's long-duration insurance contracts. The Company does not currently expect to early adopt this standard and is currently evaluating the impact of this new accounting guidance on its Condensed Consolidated Financial Statements. Outlined below are key areas of change, although there are other changes not noted below: • Cash flow assumptions must be reviewed at least annually and updated if necessary. The impact of these updates will be reported through net income. Current accounting policy requires the liability assumptions for long-duration contracts and limited payment contracts be locked in at contract inception, unless the contracts project a loss position which would allow the liability assumptions to be unlocked so that the loss could be recognized. • The rate used to discount the liability projections is to be based on an A-rated asset with observable market inputs and duration consistent with the duration of the liabilities. The discount rate is to be updated quarterly with the impact of the change in the discount rate recognized through other comprehensive income. Current accounting policy allows the use of an expected investment yield (which is not required to be observable in the market) to discount the liability projections. • Deferred acquisition costs for long-duration contracts are to be amortized in proportion to premiums, gross profits, or gross margins and those balances must be amortized on a constant-level basis over the expected life of the contract. Current accounting policy would amortize deferred acquisition costs based on revenue and profits. The Company does not have any deferred acquisition costs but VOBA amortization will follow this new guidance. • Market risk benefits are to be measured at fair value and presented separately in the statement of financial position. Under current accounting policy benefit features that will meet the definition of market risk benefits are accounted for as embedded derivatives or insurance liabilities via the benefit ratio model. The Company does not have any benefit features that will be categorized as market risk benefits. • Disaggregated rollforwards of beginning to ending balances of the liability for future policy benefits, policyholder account balances, VOBA, as well as information about significant inputs, judgments, assumptions, and methods used in measurement are required to be disclosed. The Company anticipates that the requirement to update assumptions for liability for future policy benefits will increase volatility in the Company's Condensed Consolidated Statements of Operations while the requirement to update the discount rate will increase volatility in the Company's Condensed Consolidated Statements of Stockholders' Equity. The Company anticipates a significant impact on the systems, processes and controls. While the requirements of the new guidance represent a material change from existing GAAP, the underlying economics of the Company's Insurance segment and related cash flows are unchanged. The FASB has voted to delay the effective date of ASU 2018-12 to January 1, 2024 for smaller reporting companies with a revised ASU in the fourth quarter of 2019. Currently, the Company plans to focus on developing models and procedures through 2021, with testing and refinement of models occurring in 2022 and parallel testing performed in 2023. The Company may choose one of two adoption methods for the liability for future policy benefits: (i) a modified retrospective transition method whereby the entity will apply the amendments to contracts inforce as of the beginning of the earliest period presented on the basis of their existing carrying amounts adjusted for the removal of any related amounts in AOCI or (ii) a full retrospective transition method. Focus areas will include, but not be limited to: (i) determining an appropriate upper-medium grade fixed income instrument yield source from the market; (ii) establishing appropriate aggregation of liabilities; (iii) establishing liability models for each contract grouping identified that may be quickly updated to reflect current inforce listing and new discount rates on a quarterly basis; (iv) establishing appropriate best estimate assumptions with no provision for adverse deviation; (v) establishing procedures for annual review of assumptions including tracking of actual experience for enhanced reporting requirements; (vi) establishing new VOBA amortization that will align with new guidance for DAC amortization; and (vii) developing, testing, and implementing controls for newly developed procedures, as well as for additional annual reporting requirements. Income Taxes In December 2019, the FASB issued ASU 2019-12, Income Taxe s (Topic 740). The new guidance removes the following exceptions from ASC 740, Income Taxes: (i) exception to the incremental approach for intraperiod tax allocation; (ii) exception for the recognition of a deferred tax liability when an equity method investment becomes a foreign subsidiary or a foreign subsidiary becomes an equity method investment, and (iii) exception to the general methodology for calculating income taxes in an interim period when year-to-date losses exceed expected losses for the year. ASU 2019-12 also provides guidance to increase simplicity of Topic 740. This standard is effective January 1, 2021 for public business entities. Certain amendments should be applied retrospectively with cumulative-effect adjustments made to retained earnings, while other amendments should be applied prospectively. The Company is currently evaluating the implementation date and the impact of this amendment on its financial statements. Subsequent Events ASC 855, Subsequent Events requires the Company to evaluate events that occur after the balance sheet date as of which the financial statements are issued, and to determine whether adjustments to or additional disclosures in the financial statements are necessary. See Note 22. Subsequent Events for the summary of the subsequent events.

Discontinued Operations

Discontinued Operations	3 Months Ended
	Mar. 31, 2020
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	3. Discontinued Operations The sale of GMSL closed on February 28, 2020. As a result of the sale, the results of GMSL and transaction related expenses directly attributable to the sale were reported as discontinued operations. Summarized operating results of the discontinued operations are as follows (in millions): Three Months Ended March 31, 2020 2019 Net revenue $ 17.3 $ 42.4 Cost of revenue 18.2 33.2 Selling, general and administrative 13.7 6.0 Depreciation and amortization 3.8 6.6 Other operating expenses — 0.6 Loss from operations (18.4) (4.0) Interest expense (3.6) (3.5) Loss on sale of subsidiary (39.3) — Income from equity investees 0.5 1.0 Other income (loss) 0.9 (0.1) Pre-tax loss from discontinued operations (59.9) (6.6) Income tax benefit (expense) (0.1) — Loss from discontinued operations $ (60.0) $ (6.6) The Company recorded a $39.3 million loss on the sale, inclusive of recognizing a $31.3 million loss from the realization of AOCI. The Company expects to record and overall gain from the disposition of the Marine Segment upon the sale of 30% of its interests in HMN, anticipated to close during the second quarter of 2020. The net proceeds from the sale of GMSL were used to permanently repay HC2’s $15.0 million 2019 Revolving Credit Agreement and redeem $76.9 million aggregate principal amount of HC2’s Senior Secured Notes, plus accrued and unpaid interest since December 1, 2019 (the last regularly scheduled interest payment date). As a result of the mandatory redemption of $15.0 million on the secured revolving line of credit as a result of the sale of GMSL, the Company allocated interest of $0.2 million, and the amortization of deferred financing costs of $0.1 million for the three months ended March 31, 2020, associated with the principal prepayment from continuing operations to discontinued operations on the Company’s Condensed Consolidated statement of operations. As a result of the mandatory redemption of $76.9 million on the Senior Secured Notes as a result of the sale of GMSL, the Company allocated the pro-rata interest of $2.2 million, and the pro-rata amortization of deferred financing costs and original issuance discount of $0.2 million and $0.1 million, respectively, for each of the three months ended March 31, 2020 and 2019, related to the Senior Secured Notes from continuing operations to discontinued operations on the Company’s Condensed Consolidated statement of operations.

Revenue

Revenue	3 Months Ended
	Mar. 31, 2020
Revenue from Contract with Customer [Abstract]
Revenue	4. Revenue Revenue from contracts with customers consist of the following (in millions): Three Months Ended March 31, 2020 2019 Revenue (1) Construction $ 176.5 $ 192.1 Energy 10.4 5.1 Telecommunications 186.4 155.5 Broadcasting 10.1 9.8 Total revenue $ 383.4 $ 362.5 (1) The Insurance segment does not have revenues in scope of ASC 606. Accounts receivables, net from contracts with customers consist of the following (in millions): March 31, December 31, 2020 2019 Accounts receivables with customers Construction $ 208.4 $ 199.2 Energy 22.4 31.1 Telecommunications 74.1 51.9 Broadcasting 7.1 8.5 Total accounts receivables with customers $ 312.0 $ 290.7 Construction Segment The following table disaggregates DBMG's revenue by market (in millions): Three Months Ended March 31, 2020 2019 Commercial $ 62.8 $ 59.4 Convention 2.4 28.7 Healthcare 8.0 8.8 Industrial 58.9 53.8 Transportation 16.3 18.1 Leisure 16.0 14.9 Other 12.1 8.4 Total revenue from contracts with customers 176.5 192.1 Other revenue — — Total Construction segment revenue $ 176.5 $ 192.1 Contract assets and contract liabilities consisted of the following (in millions): March 31, December 31, 2020 2019 Contract assets $ 61.5 $ 50.6 Contract liabilities $ (69.6) $ (50.6) The change in contract assets is a result of the recording of $19.0 million of costs in excess of billings driven by new commercial projects, offset by $8.1 million of costs in excess of billings transferred to receivables from contract assets recognized at the beginning of the period. The change in contract liabilities is a result of periodic billing in excess of costs of $52.7 million driven largely by new commercial projects, offset by revenue recognized that was included in the contract liability balance at the beginning of the period in the amount of $33.7 million. The transaction price allocated to remaining unsatisfied performance obligations consisted of the following (in millions): Within one year Within five years Total Commercial $ 145.4 $ — $ 145.4 Convention 19.2 — 19.2 Healthcare 44.8 — 44.8 Industrial 101.6 — 101.6 Transportation 67.5 — 67.5 Leisure 19.8 — 19.8 Other 67.3 — 67.3 Remaining unsatisfied performance obligations $ 465.6 $ — $ 465.6 DBMG includes an additional $19.9 million in its backlog that is not included in the remaining unsatisfied performance obligations noted above. This backlog represents commitments under master service agreements that are estimated amounts of work to be performed based on customer communications, historic experience and knowledge of our customers' intentions. Energy Segment The following table disaggregates ANG's revenue by type (in millions): Three Months Ended March 31, 2020 2019 Volume-related $ 8.7 $ 4.8 Total revenue from contracts with customers 8.7 4.8 RNG incentives 0.1 0.3 Alternative fuel tax credit 1.4 — Other revenue 0.2 — Total Energy segment revenue $ 10.4 $ 5.1 Telecommunications Segment ICS's revenues are predominantly derived from wholesale of international long distance minutes (in millions): Three Months Ended March 31, 2020 2019 Termination of long distance minutes $ 186.4 $ 155.5 Total revenue from contracts with customers 186.4 155.5 Other revenue — — Total Telecommunications segment revenue $ 186.4 $ 155.5 Broadcasting Segment The following table disaggregates the Broadcasting segment's revenue by type (in millions): Three Months Ended March 31, 2020 2019 Network advertising $ 5.0 $ 5.4 Broadcast station 3.5 2.7 Network distribution 1.0 1.5 Other 0.6 0.2 Total revenue from contracts with customers 10.1 9.8 Other revenue — — Total Broadcasting segment revenue $ 10.1 $ 9.8 The transaction price allocated to remaining unsatisfied performance obligations consisted of $4.3 million, $6.5 million, and $0.4 million of network advertising, broadcasting station revenues, and other revenues, respectively, of which $4.7 million is expected to be recognized within one year and $6.5 million is expected to be recognized within five years.

Acquisitions, Depositions, and

Acquisitions, Depositions, and Deconsolidations	3 Months Ended
	Mar. 31, 2020
Business Combinations [Abstract]
Acquisitions, Dispositions, and Deconsolidations	5. Acquisitions, Dispositions, and Deconsolidations Other Segment Sale of GMSL On January 30, 2020, the Company announced that, through its indirect subsidiary GMH in which the Company holds an approximately 73% controlling interest, the Company entered into a definitive agreement to sell 100% of the shares of GMSL to Trafalgar AcquisitionCo, Ltd. and an affiliate of J.F. Lehman & Company, LLC. The total base consideration was $250.0 million, subject to customary purchase price adjustments, working capital adjustments, and a potential earn-out of up to $12.5 million at such time, if any, if J.F. Lehman & Company, LLC and its investment affiliates achieve a specified multiple of their invested capital. The purchase price is subject to customary potential downward or upward post-closing adjustments based on net working capital, cash, unpaid transaction expenses, indebtedness and certain of the Company’s pre-closing paid capital expenditures. The SPA contains customary representations, warranties and covenants for a transaction of this nature. In connection with the closing of the transaction, the purchaser deposited (i) $1.25 million of the base price into an escrow fund for the purpose of securing certain indemnification obligations for losses payable in the first twelve months after closing and (ii) $1.91 million of the base price into an escrow fund for the purpose of securing a purchase price adjustment, if any, in favor of purchaser. Following the closing, the purchaser shall pay an amount equal to $2.4 million on the earlier of December 31, 2020 and the date on which a cash collateralized bonding facility is released. The transaction closed on February 28, 2020. GMH received approximately $144.0 million of net proceeds from the sale, of which $36.8 million and $5.5 million were paid to non-controlling interest holders and redeemable non-controlling interest holders, respectively. In addition, GMH held $3.1 million as reserves for transaction related costs and HC2 received net proceeds of approximately $98.6 million. The Company recorded a $39.3 million loss on the sale, inclusive of recognizing a $31.3 million loss from the realization of AOCI. The Company expects to record an overall gain from the disposition of the Marine Segment upon the sale of the portion of New Saxon’s interest in HMN that represents 30% of HMN, anticipated to close during the second quarter of 2020. See Note 3. Discontinued Operations for further details. Sale of HMN On October 30, 2019, the Company announced the sale of its stake in Huawei Marine Networks Co., Limited (“HMN”), its 49% joint venture with Huawei Technologies Co., Ltd., to Hengtong Optic-Electric Co Ltd. The equity investment in HMN has contributed $5.0 million and $12.7 million in equity method income for the years ended December 31, 2019 and 2018, respectively. HMN contributed $1.5 million and $4.8 million in equity method losses for the three months ended March 31, 2020 and 2019, respectively. The sale of GMSL's interest values HMN at $285 million, and GMH's 49% stake at approximately $140 million. Under the terms of the SPA, the sale of New Saxon’s 49% interest in HMN will be affected in two tranches, with the sale of the portion of New Saxon’s interest in HMN that represents 30% of HMN, anticipated to close during the second quarter of 2020 (the "First HMN Close"). The remaining 19% interest of HMN is retained by New Saxon and subject to a put option agreement by New Saxon, exercisable starting on the second year anniversary of the closing date of the the First HMN Close at a price equal to the greater of the share price paid for the 30% interest or fair market value as of the two year anniversary date. Energy Segment On June 14, 2019, ANG acquired ampCNG's 20 natural gas fueling stations, located primarily in the Southeastern U.S. and Texas, for cash consideration of $41.2 million. ANG’s network reach expanded to over 60 stations, making it one of the largest owners and operators of compressed natural gas stations in the country. Transaction was accounted for as asset acquisition. To finance the acquisition, ANG entered into a term loan with M&T bank for $28.0 million and issued preferred stock and ten four Broadcasting Segment During the year ended December 31, 2019 HC2 Broadcasting acquired a series of licenses for a total consideration of $71.4 million. All transactions were accounted for as asset acquisitions.

Investments

Investments	3 Months Ended
	Mar. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Investments	6. Investments Fixed Maturity Securities The following tables provide information relating to investments in fixed maturity securities (in millions): March 31, 2020 Amortized Cost Unrealized Unrealized Fair Value U.S. Government and government agencies $ 7.5 $ 1.3 $ — $ 8.8 States, municipalities and political subdivisions 391.8 36.0 (0.4) 427.4 Residential mortgage-backed securities 60.0 3.2 (2.2) 61.0 Commercial mortgage-backed securities 112.5 0.7 (13.5) 99.7 Asset-backed securities 651.8 0.7 (111.3) 541.2 Corporate and other 2,600.4 199.3 (184.8) 2,614.9 Total fixed maturity securities $ 3,824.0 $ 241.2 $ (312.2) $ 3,753.0 December 31, 2019 Amortized Unrealized Unrealized Fair Value U.S. Government and government agencies $ 7.0 $ 0.7 $ — $ 7.7 States, municipalities and political subdivisions 405.4 34.7 — 440.1 Residential mortgage-backed securities 63.0 4.5 (0.6) 66.9 Commercial mortgage-backed securities 108.2 1.8 (0.6) 109.4 Asset-backed securities 592.6 2.2 (17.0) 577.8 Corporate and other 2,569.1 273.1 (15.2) 2,827.0 Total fixed maturity securities $ 3,745.3 $ 317.0 $ (33.4) $ 4,028.9 The amortized cost and fair value of fixed maturity securities available-for-sale as of March 31, 2020 are shown by contractual maturity in the table below (in millions). Actual maturities can differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Asset and mortgage-backed securities are shown separately in the table below, as they are not due at a single maturity date: Amortized Fair Corporate, Municipal, U.S. Government and Other securities Due in one year or less $ 42.2 $ 42.2 Due after one year through five years 277.5 269.1 Due after five years through ten years 427.5 392.4 Due after ten years 2,252.5 2,347.4 Subtotal 2,999.7 3,051.1 Mortgage-backed securities 172.5 160.7 Asset-backed securities 651.8 541.2 Total $ 3,824.0 $ 3,753.0 The tables below show the major industry types of the Company’s corporate and other fixed maturity securities (in millions): March 31, 2020 December 31, 2019 Amortized Fair % of Amortized Fair % of Finance, insurance, and real estate $ 626.3 $ 585.6 22.4 % $ 632.2 $ 674.9 23.8 % Transportation, communication and other services 794.8 752.8 28.8 % 785.7 855.2 30.3 % Manufacturing 707.2 782.1 29.9 % 728.7 825.9 29.2 % Other 472.1 494.4 18.9 % 422.5 471.0 16.7 % Total $ 2,600.4 $ 2,614.9 100.0 % $ 2,569.1 $ 2,827.0 100.0 % A portion of certain OTTI losses on fixed maturity securities is recognized in Accumulated Other Comprehensive Income ("AOCI"). For these securities the net amount represents the difference between the amortized cost of the security and the net present value of its projected future cash flows discounted at the effective interest rate implicit in the debt security prior to impairment. Any remaining difference between the fair value and amortized cost is recognized in AOCI. The Company recognized the following (in millions): Three Months Ended March 31, 2020 2019 Net realized and unrealized gains on investments $ 0.8 $ — Other income (expenses), net 0.1 — Total other-than-temporary impairments $ 0.9 $ — The following table presents the total unrealized losses for the 360 and 139 fixed maturity securities held by the Company as of March 31, 2020 and December 31, 2019, respectively, where the estimated fair value had declined and remained below amortized cost by the indicated amount (in millions): March 31, 2020 December 31, 2019 Fixed maturity securities Unrealized Losses % of Unrealized Losses % of Less than 20% $ (58.0) 18.6 % $ (32.6) 97.6 % 20% or more for less than six months (252.2) 80.8 % — — % 20% or more for six months or greater (2.0) 0.6 % (0.8) 2.4 % Total $ (312.2) 100.0 % $ (33.4) 100.0 % The determination of whether unrealized losses are "other-than-temporary" requires judgment based on subjective as well as objective factors. Factors considered and resources used by management include (i) whether the unrealized loss is credit-driven or a result of changes in market interest rates, (ii) the extent to which fair value is less than cost basis, (iii) cash flow projections received from independent sources, (iv) historical operating, balance sheet and cash flow data contained in issuer SEC filings and news releases, (v) near-term prospects for improvement in the issuer and/or its industry, (vi) third party research and communications with industry specialists, (vii) financial models and forecasts, (viii) the continuity of dividend payments, maintenance of investment grade ratings and hybrid nature of certain investments, (ix) discussions with issuer management, and (x) ability and intent to hold the investment for a period of time sufficient to allow for anticipated recovery in fair value. The Company analyzes its MBS for OTTI each quarter based upon expected future cash flows. Management estimates expected future cash flows based upon its knowledge of the MBS market, cash flow projections (which reflect loan-to-collateral values, subordination, vintage and geographic concentration) received from independent sources, implied cash flows inherent in security ratings and analysis of historical payment data. The Company believes it will recover its cost basis in the non-impaired securities with unrealized losses and that the Company has the ability to hold the securities until they recover in value. The Company neither intends to sell nor does it expect to be required to sell the securities with unrealized losses as of March 31, 2020. However, unforeseen facts and circumstances may cause the Company to sell fixed maturity and equity securities in the ordinary course of managing its portfolio to meet certain diversification, credit quality and liquidity guidelines. The following tables present the estimated fair values and gross unrealized losses for the 360 and 139 fixed maturity securities held by the Company that have estimated fair values below amortized cost as of each of March 31, 2020 and December 31, 2019, respectively. The Company does not have any OTTI losses reported in AOCI. These investments are presented by investment category and the length of time the related fair value has remained below amortized cost (in millions): March 31, 2020 Less than 12 months 12 months or greater Total Fair Value Unrealized Fair Unrealized Fair Unrealized U.S. Government and government agencies $ 0.2 $ — $ — $ — $ 0.2 $ — States, municipalities and political subdivisions 28.9 (0.4) — — 28.9 (0.4) Residential mortgage-backed securities 14.6 (1.6) 4.0 (0.6) 18.6 (2.2) Commercial mortgage-backed securities 71.9 (13.5) 0.2 — 72.1 (13.5) Asset-backed securities 482.5 (109.1) 11.0 (2.2) 493.5 (111.3) Corporate and other 765.4 (181.9) 12.1 (2.9) 777.5 (184.8) Total fixed maturity securities $ 1,363.5 $ (306.5) $ 27.3 $ (5.7) $ 1,390.8 $ (312.2) December 31, 2019 Less than 12 months 12 months of greater Total Fair Unrealized Fair Unrealized Fair Unrealized U.S. Government and government agencies $ 0.3 $ — $ — $ — $ 0.3 $ — States, municipalities and political subdivisions 2.0 — — — 2.0 — Residential mortgage-backed securities 2.3 — 8.2 (0.6) 10.5 (0.6) Commercial mortgage-backed securities 58.1 (0.6) 0.2 — 58.3 (0.6) Asset-backed securities 126.5 (1.5) 255.8 (15.5) 382.3 (17.0) Corporate and other 169.6 (3.7) 177.4 (11.5) 347.0 (15.2) Total fixed maturity securities $ 358.8 $ (5.8) $ 441.6 $ (27.6) $ 800.4 $ (33.4) As of March 31, 2020, investment grade fixed maturity securities (as determined by nationally recognized rating agencies) represented approximately 77.5% of the gross unrealized loss and 88.0% of the fair value. As of December 31, 2019, investment grade fixed maturity securities represented approximately 68.3% of the gross unrealized loss and 81.8% of the fair value. Certain risks are inherent in connection with fixed maturity securities, including loss upon default, price volatility in reaction to changes in interest rates, and general market factors and risks associated with reinvestment of proceeds due to prepayments or redemptions in a period of declining interest rates. Equity securities The following tables provide information relating to investments in equity securities measured at fair value (in millions): March 31, December 31, Equity securities 2020 2019 Common stock $ 9.7 $ 10.5 Perpetual preferred stock 62.7 82.0 Total equity securities $ 72.4 $ 92.5 Net investment income The major sources of net investment income were as follows (in millions): Three Months Ended March 31, 2020 2019 Fixed maturity securities, available-for-sale at fair value $ 45.6 $ 43.6 Equity securities 1.0 2.5 Mortgage loans 5.4 3.7 Policy loans 0.3 0.3 Other invested assets — 1.2 Gross investment income 52.3 51.3 External investment expense (0.4) (0.2) Net investment income $ 51.9 $ 51.1 Net realized and unrealized gains (losses) on investments The major sources of net realized and unrealized gains and losses on investments were as follows (in millions): Three Months Ended March 31, 2020 2019 Realized gains on fixed maturity securities $ 3.7 $ 0.8 Realized losses on fixed maturity securities (0.6) (1.7) Realized gains on equity securities — 0.1 Realized losses on equity securities — (0.9) Realized gains on mortgage loans 0.1 — Net unrealized gains (losses) on equity securities (21.7) 7.4 Net unrealized gains (losses) on derivative instruments 0.2 (0.2) Impairment loss (0.8) — Net realized and unrealized gains (losses) $ (19.1) $ 5.5

Fair Value of Financial Instrum

Fair Value of Financial Instruments	3 Months Ended
	Mar. 31, 2020
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	7. Fair Value of Financial Instruments Assets by Hierarchy Level Assets and liabilities measured at fair value on a recurring basis are summarized below (in millions): March 31, 2020 Fair Value Measurement Using: Total Level 1 Level 2 Level 3 Assets Fixed maturity securities U.S. Government and government agencies $ 8.8 $ 5.5 $ 3.3 $ — States, municipalities and political subdivisions 427.4 — 418.4 9.0 Residential mortgage-backed securities 61.0 — 48.0 13.0 Commercial mortgage-backed securities 99.7 — 65.5 34.2 Asset-backed securities 541.2 — 255.7 285.5 Corporate and other 2,614.9 31.9 2,414.3 168.7 Total fixed maturity securities 3,753.0 37.4 3,205.2 510.4 Equity securities Common stocks 9.7 6.3 — 3.4 Perpetual preferred stocks 62.7 4.4 20.1 38.2 Total equity securities 72.4 10.7 20.1 41.6 Total assets accounted for at fair value $ 3,825.4 $ 48.1 $ 3,225.3 $ 552.0 Liabilities Embedded derivative $ 0.7 $ — $ — $ 0.7 Other 3.7 — — 3.7 Total liabilities accounted for at fair value $ 4.4 $ — $ — $ 4.4 December 31, 2019 Fair Value Measurement Using: Total Level 1 Level 2 Level 3 Assets Fixed maturity securities U.S. Government and government agencies $ 7.7 $ 4.8 $ 2.9 $ — States, municipalities and political subdivisions 440.1 — 440.1 — Residential mortgage-backed securities 66.9 — 57.7 9.2 Commercial mortgage-backed securities 109.4 — 74.8 34.6 Asset-backed securities 577.8 — 27.2 550.6 Corporate and other 2,827.0 46.5 2,669.5 111.0 Total fixed maturity securities 4,028.9 51.3 3,272.2 705.4 Equity securities Common stocks 10.5 7.1 — 3.4 Perpetual preferred stocks 82.0 5.0 22.8 54.2 Total equity securities 92.5 12.1 22.8 57.6 Total assets accounted for at fair value $ 4,121.4 $ 63.4 $ 3,295.0 $ 763.0 Liabilities Embedded Derivatives $ 3.0 $ — $ — $ 3.0 Other 4.8 — — 4.8 Total liabilities accounted for at fair value $ 7.8 $ — $ — $ 7.8 The Company reviews the fair value hierarchy classifications each reporting period. Changes in the observability of the valuation attributes may result in a reclassification of certain financial assets or liabilities. Such reclassifications are reported as transfers in and out of Level 3 at the beginning fair value for the reporting period in which the changes occur. Availability of secondary market activity and consistency of pricing from third-party sources impacts the Company's ability to classify securities as Level 2 or Level 3. The Company’s assessment resulted in a net transfer out of Level 3 of $119.5 million primarily related to corporate securities during the three months ended March 31, 2020. The Company’s assessment resulted in a net transfer out of Level 3 of $104.9 million primarily related to corporate securities during the three months ended March 31, 2019. The methods and assumptions the Company uses to estimate the fair value of assets and liabilities measured at fair value on a recurring basis are summarized below: Fixed Maturity Securities. The fair values of the Company’s publicly-traded fixed maturity securities are generally based on prices obtained from independent pricing services. Prices from pricing services are sourced from multiple vendors, and a vendor hierarchy is maintained by asset type based on historical pricing experience and vendor expertise. In some cases, the Company receives prices from multiple pricing services for each security, but ultimately uses the price from the pricing service highest in the vendor hierarchy based on the respective asset type. Consistent with the fair value hierarchy described above, securities with validated quotes from pricing services are generally reflected within Level 2, as they are primarily based on observable pricing for similar assets and/or other market observable inputs. If the Company ultimately concludes that pricing information received from the independent pricing service is not reflective of market activity, non-binding broker quotes are used, if available. If the Company concludes the values from both pricing services and brokers are not reflective of market activity, it may override the information from the pricing service or broker with an internally developed valuation, however, this occurs infrequently. Internally developed valuations or non-binding broker quotes are also used to determine fair value in circumstances where vendor pricing is not available. These estimates may use significant unobservable inputs, which reflect the Company’s assumptions about the inputs that market participants would use in pricing the asset. Pricing service overrides, internally developed valuations and non-binding broker quotes are generally based on significant unobservable inputs and are reflected as Level 3 in the valuation hierarchy. The inputs used in the valuation of corporate and government securities include, but are not limited to, standard market observable inputs which are derived from, or corroborated by, market observable data including market yield curve, duration, call provisions, observable prices and spreads for similar publicly traded or privately traded issues that incorporate the credit quality and industry sector of the issuer. For structured securities, valuation is based primarily on matrix pricing or other similar techniques using standard market inputs including spreads for actively traded securities, spreads off benchmark yields, expected prepayment speeds and volumes, current and forecasted loss severity, rating, weighted average coupon, weighted average maturity, average delinquency rates, geographic region, debt-service coverage ratios and issuance-specific information including, but not limited to: collateral type, payment terms of the underlying assets, payment priority within the tranche, structure of the security, deal performance and vintage of loans. When observable inputs are not available, the market standard valuation techniques for determining the estimated fair value of certain types of securities that trade infrequently, and therefore have little or no price transparency, rely on inputs that are significant to the estimated fair value but that are not observable in the market or cannot be derived principally from or corroborated by observable market data. These unobservable inputs are sometimes based in large part on management judgment or estimation, and cannot be supported by reference to market activity. Even though unobservable, these inputs are based on assumptions deemed appropriate given the circumstances and are believed to be consistent with what other market participants would use when pricing such securities. The fair values of private placement securities are primarily determined using a discounted cash flow model. In certain cases, these models primarily use observable inputs with a discount rate based upon the average of spread surveys collected from private market intermediaries who are active in both primary and secondary transactions, taking into account, among other factors, the credit quality and industry sector of the issuer and the reduced liquidity associated with private placements. Generally, these securities have been reflected within Level 3. For certain private fixed maturities, the discounted cash flow model may also incorporate significant unobservable inputs, which reflect the Company’s own assumptions about the inputs market participants would use in pricing the security. To the extent management determines that such unobservable inputs are not significant to the price of a security, a Level 2 classification is made. Otherwise, a Level 3 classification is used. Equity Securities. The balance consists principally of common and preferred stock of publicly and privately traded companies. The fair values of publicly traded equity securities are primarily based on quoted market prices in active markets and are classified within Level 1 in the fair value hierarchy. The fair values of preferred equity securities, for which quoted market prices are not readily available, are based on prices obtained from independent pricing services and these securities are generally classified within Level 2 in the fair value hierarchy. The fair value of common stock of privately held companies was determined using unobservable market inputs, including volatility and underlying security values and was classified as Level 3. Cash Equivalents. The balance consists of money market instruments, which are generally valued using unadjusted quoted prices in active markets that are accessible for identical assets and are primarily classified as Level 1. Various time deposits carried as cash equivalents are not measured at estimated fair value and, therefore, are excluded from the tables presented. Level 3 Measurements and Transfers The following tables summarize changes to the Company’s financial instruments carried at fair value and classified within Level 3 of the fair value hierarchy for the three months ended March 31, 2020 and 2019 (in millions): Total realized/unrealized gains (losses) included in Balance at Net earnings Other comp. Purchases and Sales and Transfer to Transfer out of Balance at Assets Fixed maturity securities States, municipalities and political subdivisions $ — $ 0.1 $ (1.0) $ — $ — $ 9.9 $ — $ 9.0 Residential mortgage-backed securities 9.2 — (1.9) — (0.7) 6.8 (0.4) 13.0 Commercial mortgage-backed securities 34.6 — (5.3) — (0.2) 5.1 — 34.2 Asset-backed securities 550.6 — (93.3) 60.0 (51.5) — (180.3) 285.5 Corporate and other 111.0 (0.1) (13.0) 32.7 (1.3) 40.7 (1.3) 168.7 Total fixed maturity securities 705.4 — (114.5) 92.7 (53.7) 62.5 (182.0) 510.4 Equity securities Common stocks 3.4 — — — — — — 3.4 Perpetual preferred stocks 54.2 — (16.0) — — — — 38.2 Total equity securities 57.6 — (16.0) — — — — 41.6 Total financial assets $ 763.0 $ — $ (130.5) $ 92.7 $ (53.7) $ 62.5 $ (182.0) $ 552.0 Total realized/unrealized (gains) losses included in Balance at Net earnings Other comp. Purchases and Sales and Transfer to Transfer out of Balance at Liabilities Embedded derivative $ 3.0 $ (2.3) $ — $ — $ — $ — $ — $ 0.7 Other 4.8 (1.1) — — — — — 3.7 Total financial liabilities $ 7.8 $ (3.4) $ — $ — $ — $ — $ — $ 4.4 Total realized/unrealized gains (losses) included in Balance at Net earnings Other comp. Purchases and Sales and Transfer to Transfer out of Balance at Assets Fixed maturity securities Residential mortgage-backed securities 19.0 — 0.1 — (0.3) — (5.7) 13.1 Commercial mortgage-backed securities 58.2 — 1.6 2.4 (0.4) — — 61.8 Asset-backed securities 478.2 — 13.3 48.6 (73.6) 5.6 — 472.1 Corporate and other 85.0 — 8.5 4.6 (4.6) 105.0 — 198.5 Total fixed maturity securities 640.4 — 23.5 55.6 (78.9) 110.6 (5.7) 745.5 Equity securities Common stocks 5.9 0.2 — — — — — 6.1 Perpetual preferred stocks 55.3 (0.2) — — — — — 55.1 Total equity securities 61.2 — — — — — — 61.2 Total financial assets $ 701.6 $ — $ 23.5 $ 55.6 $ (78.9) $ 110.6 $ (5.7) $ 806.7 Total realized/unrealized (gains) losses included in Balance at Net earnings Other comp. Purchases and Sales and Transfer to Transfer out of Balance at Liabilities Embedded derivatives $ 8.4 $ (2.3) $ — $ — $ — $ — $ — $ 6.1 Other 3.5 (0.8) — — — — — 2.7 Total financial liabilities $ 11.9 $ (3.1) $ — $ — $ — $ — $ — $ 8.8 Internally developed fair values of Level 3 assets represent less than 1% of the Company’s total assets. Any justifiable changes in unobservable inputs used to determine internally developed fair values would not have a material impact on the Company’s financial position. Fair Value of Financial Instruments Not Measured at Fair Value The following table presents the carrying amounts and estimated fair values of the Company’s financial instruments, which were not measured at fair value on a recurring basis. The table excludes carrying amounts for cash and cash equivalents, accounts receivable, accounts payable and other current liabilities, and other assets and liabilities approximate fair value due to relatively short periods to maturity (in millions): March 31, 2020 Fair Value Measurement Using: Carrying Value Estimated Fair Value Level 1 Level 2 Level 3 Assets Mortgage loans $ 142.2 $ 142.3 $ — $ — $ 142.3 Policy loans 18.9 18.9 — 18.9 — Total assets not accounted for at fair value $ 161.1 $ 161.2 $ — $ 18.9 $ 142.3 Liabilities Annuity benefits accumulated (1) $ 232.5 $ 229.8 $ — $ — $ 229.8 Long-term obligations (2) 684.6 675.9 — 675.9 — Total liabilities not accounted for at fair value $ 917.1 $ 905.7 $ — $ 675.9 $ 229.8 December 31, 2019 Fair Value Measurement Using: Carrying Value Estimated Fair Value Level 1 Level 2 Level 3 Assets Mortgage loans $ 183.5 $ 183.5 $ — $ — $ 183.5 Policy loans 19.1 19.1 — 19.1 — Total assets not accounted for at fair value $ 202.6 $ 202.6 $ — $ 19.1 $ 183.5 Liabilities Annuity benefits accumulated (1) $ 233.9 $ 231.0 $ — $ — $ 231.0 Long-term obligations (2) 772.0 768.9 — 768.9 — Total liabilities not accounted for at fair value $ 1,005.9 $ 999.9 $ — $ 768.9 $ 231.0 (1) Excludes life contingent annuities in the payout phase. (2) Excludes certain lease obligations accounted for under ASC 842, Leases . Mortgage Loans on Real Estate. The fair value of mortgage loans on real estate is estimated by discounting cash flows, both principal and interest, using current interest rates for mortgage loans with similar credit ratings and similar remaining maturities. As such, inputs include current treasury yields and spreads, which are based on the credit rating and average life of the loan, corresponding to the market spreads. The valuation of mortgage loans on real estate is considered Level 3 in the fair value hierarchy. Annuity Benefits Accumulated. The fair value of annuity benefits was determined using the surrender values of the annuities and classified as Level 3. Long-term Obligations. The fair value of the Company’s long-term obligations was determined using Bloomberg Valuation Service BVAL. The methodology combines direct market observations from contributed sources with quantitative pricing models to generate evaluated prices and classified as Level 2.

Accounts Receivable, net

Accounts Receivable, net	3 Months Ended
	Mar. 31, 2020
Receivables [Abstract]
Accounts Receivable, net	8. Accounts Receivable, net Accounts receivable, net consist of the following (in millions): March 31, December 31, 2020 2019 Contracts in progress $ 170.7 $ 177.8 Trade receivables 81.9 60.6 Unbilled retentions 61.2 53.9 Other receivables 21.1 21.0 Allowance for doubtful accounts (1.6) (1.5) Total accounts receivable, net $ 333.3 $ 311.8

Recoverable from Reinsurers

Recoverable from Reinsurers	3 Months Ended
	Mar. 31, 2020
Insurance [Abstract]
Recoverable from Reinsurers	9. Recoverable from Reinsurers Recoverable from reinsurers consists of the following (in millions): March 31, 2020 December 31, 2019 Reinsurer A.M. Best Rating Amount % of Total Amount % of Total Munich American Reassurance Company A+ $ 354.3 37.0 % $ 347.6 36.4 % Hannover Life Reassurance Company of America A+ 320.6 33.5 % 323.3 33.9 % Loyal American Life Insurance Company A 148.6 15.5 % 147.5 15.5 % Great American Life Insurance Company A 57.2 6.0 % 56.2 5.9 % ManhattanLife Assurance Company of America B+ 46.2 4.8 % 47.0 4.9 % Other 31.5 3.2 % 32.1 3.4 % Total $ 958.4 100.0 % $ 953.7 100.0 %

Property, Plant, and Equipment,

Property, Plant, and Equipment, net	3 Months Ended
	Mar. 31, 2020
Property, Plant and Equipment [Abstract]
Property, Plant, and Equipment, net	10. Property, Plant and Equipment, net Property, plant and equipment consists of the following (in millions): March 31, December 31, 2020 2019 Equipment, furniture and fixtures, and software $ 215.5 $ 212.8 Building and leasehold improvements 41.0 40.1 Land 36.5 36.8 Construction in progress 5.6 4.8 Plant and transportation equipment 5.1 5.2 303.7 299.7 Less: Accumulated depreciation 80.3 76.0 Total $ 223.4 $ 223.7 Depreciation expense was $6.8 million and $5.9 million for the three months ended March 31, 2020 and 2019, respectively. These amounts included $2.3 million and $2.2 million of depreciation expense recognized within cost of revenue for the three months ended March 31, 2020 and 2019, respectively.

Goodwill and Intangibles, net

Goodwill and Intangibles, net	3 Months Ended
	Mar. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangibles, net	11. Goodwill and Intangibles, net HC2 is required to assess goodwill and indefinite-intangible assets for impairment annually, or more frequently if circumstances indicate impairment may have occurred. The Company considered the current and expected future economic and market conditions surrounding the COVID-19 pandemic and its impact on each of the reporting units. Further, the Company assessed the current market capitalization, forecasts and the amount of headroom in the 2019 impairment test. As a result of this assessment, the Company determined that a “triggering event” had occurred relative to its Broadcasting segment and, as required, performed a quantitative analysis, with the assistance of a third-party valuation firm, of the value of the Broadcasting reporting unit and its indefinite-lived intangible assets. Based on the analysis, the Company determined that the fair value of the Broadcasting reporting unit and the related indefinite-lived intangible assets continue to exceed their carrying values and were not impaired as of March 31, 2020. Determining the fair value of the Broadcasting reporting unit and indefinite-lived intangible assets requires significant judgment and estimates by management, utilizing the income-approach, which utilizes several key inputs, including future cash flows consistent with management’s strategic plans, sales growth rates and a discount rate, amongst others. Estimating sales growth rates requires significant judgment by management in areas such as future economic conditions, growth rates, pricing, and consumer tastes and preferences. Given the inherent uncertainties in estimating the future impacts of the COVID-19 pandemic on global macroeconomic conditions and interest rates in general and on the Broadcasting business, actual results may differ from management’s current estimates and could have an adverse impact on one or more of the assumptions used in our quantitative models related to the Broadcasting reporting unit, resulting in potential impairment charges in subsequent periods. As of March 31, 2020, while the fair value of the Broadcasting reporting unit declined, the fair value of the Broadcasting reporting unit continued to exceed its carrying value. The COVID-19 pandemic could cause a further and sustained decline in the value of our reporting units or other triggering event that could cause the Company to perform a goodwill impairment test and result in an impairment charge being recorded in a future period. Goodwill The carrying amount of goodwill by segment was as follows (in millions): Construction Energy Broadcasting Total Balance at December 31, 2019 $ 89.0 $ 2.1 $ 21.4 $ 112.5 Translation (0.5) — — (0.5) Balance at March 31, 2020 $ 88.5 $ 2.1 $ 21.4 $ 112.0 Indefinite-lived Intangible Assets The carrying amount of indefinite-lived intangible assets were as follows (in millions): March 31, December 31, 2020 2019 FCC licenses $ 136.6 $ 136.2 State licenses 2.5 2.5 Total $ 139.1 $ 138.7 Definite Lived Intangible Assets The gross carrying amount and accumulated amortization of amortizable intangible assets by major intangible asset class were as follows (in millions): Weighted-Average Original Useful Life March 31, 2020 December 31, 2019 Gross Carrying Amount Accumulated Amortization Net Gross Carrying Amount Accumulated Amortization Net Trade names 13 Years $ 24.2 $ (7.1) $ 17.1 $ 24.2 $ (6.6) $ 17.6 Customer relationships 10 Years 48.3 (14.1) 34.2 48.6 (13.1) 35.5 Channel sharing arrangements 35 Years 27.2 (1.1) 26.1 27.2 (0.9) 26.3 Other 7 Years 5.6 (2.0) 3.6 5.5 (1.9) 3.6 Total $ 105.3 $ (24.3) $ 81.0 $ 105.5 $ (22.5) $ 83.0 Amortization expense for definite lived intangible assets was $2.0 million and $3.1 million for the three months ended March 31, 2020 and 2019, respectively, and was included in Depreciation and amortization in our Condensed Consolidated Statements of Operations. Excluding the impact of any future acquisitions, dispositions or change in foreign currency, the Company estimates the annual amortization expense of amortizable intangible assets for the next five fiscal years will be as follows (in millions): 2020 $ 6.0 2021 7.8 2022 7.6 2023 7.5 2024 7.0 Thereafter 45.1 Total $ 81.0

Life, Accident and Health Reser

Life, Accident and Health Reserves	3 Months Ended
	Mar. 31, 2020
Insurance [Abstract]
Life, Accident and Health Reserves	12. Life, Accident and Health Reserves Life, accident and health reserves consist of the following (in millions): March 31, December 31, 2020 2019 Long-term care insurance reserves $ 4,231.0 $ 4,201.6 Traditional life insurance reserves 170.6 173.4 Other accident and health insurance reserves 192.3 192.1 Total life, accident and health reserves $ 4,593.9 $ 4,567.1 The following table sets forth changes in the liability for claims for the portion of our long-term care insurance reserves (in millions): Three Months Ended March 31, 2020 2019 Beginning balance $ 761.3 $ 738.7 Less: recoverable from reinsurers (131.0) (136.4) Beginning balance, net 630.3 602.3 Incurred related to insured events of: Current year 68.9 62.4 Prior years (13.3) (36.0) Total incurred 55.6 26.4 Paid related to insured events of: Current year (0.6) (0.6) Prior years (42.8) (36.4) Total paid (43.4) (37.0) Interest on liability for policy and contract claims 5.6 5.3 Ending balance, net 648.1 597.0 Add: recoverable from reinsurers 136.2 136.4 Ending balance $ 784.3 $ 733.4 The Insurance segment experienced a favorable claims reserve development of $13.3 million and $36.0 million for the three months ended March 31, 2020 and 2019, respectively. There was favorable development with claim terminations and care transitions for claims incurred prior to 2020 that created the sufficiency within the three months ended March 31, 2020. Due to favorable development in the estimates for benefits remaining during the three months ended March 31, 2019, experience in the first quarter of 2020 has been less favorable than in 2019, it is too early to determine if this trend will be persistent or is the result of normal volatility in claims activity from period to period.

Accounts Payable and Other Curr

Accounts Payable and Other Current Liabilities	3 Months Ended
	Mar. 31, 2020
Payables and Accruals [Abstract]
Accounts Payable and Other Current Liabilities	13. Accounts Payable and Other Current Liabilities Accounts payable and other current liabilities consist of the following (in millions): March 31, December 31, 2020 2019 Accounts payable $ 147.4 $ 134.6 Accrued expenses and other current liabilities 51.3 75.2 Accrued interconnection costs 69.6 43.5 Accrued payroll and employee benefits 35.1 39.6 Accrued interest 24.7 11.3 Accrued income taxes 6.3 2.0 Total accounts payable and other current liabilities $ 334.4 $ 306.2

Debt Obligations

Debt Obligations	1 Months Ended
	Mar. 31, 2020
Debt Disclosure [Abstract]
Debt Obligations	Debt obligations consist of the following (in millions): March 31, December 31, 2020 2019 Construction LIBOR plus 5.85% Note, due 2023 $ 75.6 $ 77.0 LIBOR plus 1.50% Line of Credit 49.7 48.9 Obligations under finance leases 0.2 0.2 Energy LIBOR plus 3.0% Term Loan due in 2023 26.3 27.1 5.00% Term Loan due in 2022 10.9 11.2 4.50% Note due in 2022 9.9 10.2 Other, various maturity dates 3.0 2.4 Broadcasting 8.50% Note due 2020 39.3 36.2 10.50% Note due 2020 42.5 42.5 Other, various maturity dates 5.1 7.9 Obligations under finance leases 1.2 1.4 Non-Operating Corporate 11.50% Senior Secured Notes, due 2021 393.0 470.0 7.50% Convertible Senior Notes, due 2022 55.0 55.0 LIBOR plus 6.75% Line of Credit (1) — 15.0 Total 711.7 805.0 Issuance discount, net and deferred financing costs (25.7) (31.4) Total debt obligations $ 686.0 $ 773.6 (1) On April 16, 2020, HC2 drew $10.0 million on its 2020 Revolving Credit Agreement. HC2 intends to use the proceeds for general corporate purposes. Aggregate finance lease and debt payments, including interest are as follows (in millions): Finance Leases Debt Total 2020 $ 1.0 $ 178.0 $ 179.0 2021 0.5 459.0 459.5 2022 — 76.7 76.7 2023 — 93.8 93.8 2024 — 11.3 11.3 Thereafter — 7.5 7.5 Total minimum principal & interest payments 1.5 826.3 827.8 Less: Amount representing interest (0.1) (116.0) (116.1) Total aggregate finance lease and debt payments $ 1.4 $ 710.3 $ 711.7 The interest rates on the finance leases range from approximately 2.0% to 11.5%. Broadcasting In February 2020, Broadcasting amended its agreement governing its privately placed note funded by MSD Partners, L.P., increasing the principal balance to $39.3 million. The proceeds were used to repay principal and interest on existing debt. Non-Operating Corporate In March 2020, with the cash proceeds from the sale of GMSL, HC2 fully repaid its $15.0 million secured revolving line of credit with MSD PCOF Partners IX, LLC (the "2019 Revolving Credit Agreement") In March 2020 HC2 entered into a new $15.0 million secured revolving credit agreement (the “2020 Revolving Credit Agreement”). The 2020 Revolving Credit Agreement matures in June 2021. Loans under the Revolving Credit Agreement bear interest at a per annum rate equal to, at HC2's option, one, two or three month LIBOR plus a margin of 6.75%. In March 2020, with the cash proceeds from the sale of GMSL, HC2 redeemed $76.9 million of its 11.50% senior secured notes due 2021 (the "Senior Secured Notes") at a price equal to 104.5% of the principal amount plus accrued interest through the redemption date.

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2020
Income Tax Disclosure [Abstract]
Income Taxes	15. Income Taxes Income Tax Expense The Company used the Annual Effective Tax Rate ("ETR") approach of ASC 740-270, Interim Reporting, to calculate its 2020 interim tax provision. Income tax was a benefit of $12.6 million and an expense of $4.0 million for the three months ended March 31, 2020 and 2019, respectively. The income tax benefit recorded for the three months ended March 31, 2020 primarily relates to a one-time, discrete tax benefit from the carryback of net operating losses at the Insurance segment as a result of the enactment of the CARES Act on March 27, 2020. The CARES Act was enacted during the first quarter of 2020 and includes several provisions which were applicable to the Company, including the ability to carryback Federal net operating losses generated in tax years beginning in 2018-2020, the removal of the 80% taxable income limitation for net operating loss deductions for tax years beginning before January 1, 2021, and a temporary increase in the interest limitation from 30% to 50% for tax years beginning in 2019 and 2020. We have included the impact of these provisions in our overall tax benefit for the three months ended March 31, 2020. Additionally, the tax benefits associated with losses generated by the HC2 Holdings, Inc. U.S. consolidated income tax return and certain other businesses have been reduced by a full valuation allowance as we do not believe it is more-likely-than-not that the losses will be utilized prior to expiration. The income tax expense recorded for March 31, 2019 relates to the projected expense as calculated under ASC 740 for taxpaying entities and because no benefit is recognized on the losses of the HC2 U.S. tax consolidated group and the losses of their subsidiaries as valuation allowances are recorded on the deferred tax assets of these companies. Unrecognized Tax Benefits The Company follows the provision of ASC 740-10, Income Taxes, which prescribes a comprehensive model for how a company should recognize, measure, present, and disclose in its financial statements uncertain tax positions that the Company has taken or expects to take on a tax return. The Company is subject to challenge from various taxing authorities relative to certain tax planning strategies, including certain intercompany transactions as well as regulatory taxes. Examinations The Company conducts business globally, and as a result, the Company or one or more of its subsidiaries files income tax returns in the United States federal jurisdiction and various state and foreign jurisdictions. In the normal course of business the Company is subject to examination by taxing authorities throughout the world. The open tax years contain matters that could be subject to differing interpretations of applicable tax laws and regulations as they relate to the amount, character, timing or inclusion of revenue and expenses or the applicability of income tax credits for the relevant tax period. Given the nature of tax audits there is a risk that disputes may arise. Tax years 2002 - 2019 remain open for examination.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	16. Commitments and Contingencies Future minimum purchase obligations as of December 31, 2019 were as follows (in millions): 2020 $ 86.3 2021 3.3 2022 0.2 2023 0.2 2024 0.2 Thereafter — Total obligations $ 90.2 As of December 31, 2019, undiscounted cash flows for finance and operating leases are as follows (in millions): Operating Leases Finance 2020 $ 15.1 $ 1.0 2021 13.4 0.7 2022 10.9 0.1 2023 8.8 — 2024 6.6 — Thereafter 8.2 — Total future lease payments 63.0 1.8 Less: Present values (9.3) (0.1) Total lease liability balance $ 53.7 $ 1.7 Litigation The Company is subject to claims and legal proceedings that arise in the ordinary course of business. Such matters are inherently uncertain, and there can be no guarantee that the outcome of any such matter will be decided favorably to the Company or that the resolution of any such matter will not have a material adverse effect upon the Company’s Condensed Consolidated Financial Statements. The Company does not believe that any of such pending claims and legal proceedings will have a material adverse effect on its Condensed Consolidated Financial Statements. The Company records a liability in its Condensed Consolidated Financial Statements for these matters when a loss is known or considered probable and the amount can be reasonably estimated. The Company reviews these estimates each accounting period as additional information is known and adjusts the loss provision when appropriate. If a matter is both probable to result in a liability and the amounts of loss can be reasonably estimated, the Company estimates and discloses the possible loss or range of loss to the extent necessary for its Condensed Consolidated Financial Statements not to be misleading. If the loss is not probable or cannot be reasonably estimated, a liability is not recorded in its Condensed Consolidated Financial Statements. Based on a review of the current facts and circumstances with counsel in each of the matters disclosed, management has provided for what is believed to be a reasonable estimate of loss exposure. While acknowledging the uncertainties of litigation, management believes that the ultimate outcome of litigation will not have a material effect on its financial position and will defend itself vigorously. VAT assessment On February 20, 2017, and on August 15, 2017, the Company's subsidiary, ICS, received notices from Her Majesty’s Revenue and Customs office in the U.K. (the "HMRC") indicating that it was required to pay certain Value-Added Taxes ("VAT") for the 2015 and 2016 tax years. ICS disagrees with HMRC’s assessments on technical and factual grounds and intends to dispute the assessed liabilities and vigorously defend its interests. We do not believe the assessment to be probable and expect to prevail based on the facts and merits of our existing VAT position. DBMG Class Action On November 6, 2014, a putative stockholder class action complaint challenging the tender offer by which HC2 acquired approximately 721,000 of the issued and outstanding common shares of DBMG was filed in the Court of Chancery of the State of Delaware, captioned Mark Jacobs v. Philip A. Falcone, Keith M. Hladek, Paul Voigt, Michael R. Hill, Rustin Roach, D. Ronald Yagoda, Phillip O. Elbert, HC2 Holdings, Inc., and Schuff International, Inc., Civil Action No. 10323 (the "Complaint"). On November 17, 2014, a second lawsuit was filed in the Court of Chancery of the State of Delaware, captioned Arlen Diercks v. Schuff International, Inc. Philip A. Falcone, Keith M. Hladek, Paul Voigt, Michael R. Hill, Rustin Roach, D. Ronald Yagoda, Phillip O. Elbert, HC2 Holdings, Inc., Civil Action No. 10359. On February 19, 2015, the court consolidated the actions (now designated as Schuff International, Inc. Stockholders Litigation) and appointed lead plaintiff and counsel. The currently operative complaint is the Complaint filed by Mark Jacobs. The Complaint alleges, among other things, that in connection with the tender offer, the individual members of the DBMG Board of Directors and HC2, the now-controlling stockholder of DBMG, breached their fiduciary duties to members of the plaintiff class. The Complaint also purports to challenge a potential short-form merger based upon plaintiff’s expectation that the Company would cash out the remaining public stockholders of DBMG following the completion of the tender offer. The Complaint seeks rescission of the tender offer and/or compensatory damages, as well as attorney’s fees and other relief. The defendants filed answers to the Complaint on July 30, 2015. On November 15, 2019, the parties filed definitive documentation in support of a proposed settlement of the action. On January 14, 2020, plaintiff filed an amended complaint restating and elaborating on the claims raised in the Complaint. The Amended Complaint seeks compensatory and rescissory damages, as well as attorney’s fees and other relief. On February 13, 2020, the Court held a settlement hearing to consider the proposed settlement and certain objections filed by two current DBMG stockholders. The Court expressed concerns about certain terms of the proposed settlement and the parties requested additional time to evaluate potential modifications to the proposed settlement. On May 8, 2020, the parties filed with the Court a revised settlement agreement for all claims relating to the Amended Complaint (the “Revised Settlement Framework”). The Revised Settlement Framework provides for a settlement payment of $35.95 per share to a fund for the benefit of the former DBMG stockholders who tendered their shares in the 2014 tender offer other than stockholders who were defendants in the action or their immediate family members, officers of DBMG, or directors or officers of HC2 (the “Tendered Stockholders”). The proposed settlement payment to the Tendered Stockholders applies to approximately 568,550 shares and totals approximately $20.4 million. The Revised Settlement Framework provides that the amount received by the Tendered Stockholders will be reduced by the per share amount of any fee award to lead plaintiff’s counsel. HC2’s D&O insurers have agreed to contribute approximately $12.4 million of this approximately $20.4 million settlement payment, and DBMG has agreed to fund the remaining approximately $8.1 million either through cash on hand or borrowing from a third-party lender. The Revised Settlement Framework also provides that HC2 will fund two types of payments to the current owners of the 289,902 shares of DBMG common stock not owned by HC2 or its affiliates (the “public DBMG stockholders”). The first payment of $2.51 per share, or $0.7 million total, is intended to offset the indirect burden that the public DBMG stockholders arguably bear (by virtue of their approximately 7.52% ownership of DBMG) from DBMG’s funding of the approximately $8.1 million portion of the settlement payment to the Tendered Stockholders. The second payment of $1.00 per share, or $289,902 total, represents consideration for a full release of claims from the public DBMG stockholders related to the action and the implementation of the Revised Settlement Framework. In sum, the Revised Settlement Framework provides that HC2 would fund payments of $3.51 per share, or $1.0 million total, to the public DBMG stockholders. If approved, the Revised Settlement Framework would result in a global settlement of the action and the certification of a non-opt-out plaintiff class consisting of any and all record and beneficial owners of outstanding shares of DBMG common stock who held such stock at any time during May 12, 2014 through and including the close of business on May 8, 2020, and including, among others, their successors. The Revised Settlement Framework also provides for a release of claims by the plaintiff class in favor of a broad group of released defendant parties relating to, among other things, the action, the 2014 tender offer, all claims relating to HC2’s decision not to close a short-form merger shortly after the 2014 tender offer, and the implementation and funding of the Revised Settlement Framework. Although the parties are seeking approval of Revised Settlement Framework, there can be no assurance that the Delaware Courts will approve the revised or any other settlement proposed by the parties. If a settlement cannot be reached, the Company believes it has meritorious defenses and intends to vigorously defend this matter. Non-Operating Corporate Stockholder Litigation On April 10, 2020, a purported stockholder of the Company filed a class action complaint in the Delaware Court of Chancery captioned Tera v. HC2 Holdings Inc., et al., C.A. No. 2020-0275-JRS (the “Stockholder Litigation”). The complaint alleges that the Company’s consent revocation materials (i) contain misleading disclosures relating to the Certificates of Designation, (ii) fail to disclose that a majority of the Board may approve the nominees set forth by Percy Rockdale LLC and certain of its affiliates (collectively, “Percy Rockdale”), for purposes of the Certificates of Designation such that the Percy Rockdale nominees would be considered “Continuing Directors” (as defined in the Certificates of Designation) and (iii) inaccurately state that electing the Percy Rockdale nominees will cause a Change of Control (as defined in the Certificates of Designation) under the Certificates of Designation because it will lead to a person or group obtaining the power to elect a majority of the members of the Board. The complaint seeks (i) a declaration requiring the Board to approve the Percy Rockdale nominees for purposes of the Certificates of Designation, (ii) a declaration that the Board breached its fiduciary duties by issuing misleading disclosures and (iii) an injunction requiring the Board to issue additional disclosures relating to the Change of Control provisions in the Certificates of Designation. On April 19, 2020, the plaintiff amended his complaint to allege that the Supplement to the Consent Revocation Statement, filed with the SEC on April 17, 2020, contained misleading disclosures relating to the Certificates of Designation. The amended complaint seeks, among other remedies, (i) a declaration that the Board breached its fiduciary duties by issuing misleading disclosures; (ii) a declaration that, if a Change of Control could be deemed to occur under the Certificates of Designation, that such Change of Control provisions are invalid and unenforceable under Delaware law; (iii) an injunction requiring the defendants to issue corrective disclosures; and (iv) an order enjoining the Board from relying upon consent revocations received to date. On April 20, 2020, the Court of Chancery granted the plaintiff’s motion for expedited proceedings. On April 15, 2020, the Board (with Mr. Falcone recusing himself because he is not an Independent Director) determined to approve the Percy Rockdale nominees, solely and specifically for the purposes of deeming them Continuing Directors pursuant to the Certificates of Designation, to avoid triggering, and to render inapplicable, such prong of the Change of Control definition. On April 17, 2020 and April 21, 2020, each of the holder of the Series A Preferred Stock and the holder of the Series A-2 Preferred Stock, respectively, and, in each case, entitled to give a waiver, agreed that such holder will not seek to exercise its right to require the Company to redeem the shares of such Series A Preferred Stock or Series A-2 Preferred Stock, as applicable, if such redemption right were to arise as a result of the outcome of the Consent Solicitation based on one of the Change of Control prongs of the Certificate of Designation (which prong may require the Company to make an offer to redeem the Preferred Stock if any person or “group” (within the meaning of Rules 13d-3 and 13d-5 under the Exchange Act) obtains the power to elect a majority of the members of the Board). Therefore, in light of the foregoing, if the Percy Rockdale nominees become a majority of the Board pursuant to Percy Rockdale’s consent solicitation, the Company will not be required to offer to redeem the shares of the Series A Preferred Stock and the Series A-2 Preferred Stock. On April 23, 2020, the parties agreed that the waiver and additional disclosures, combined with the prior disclosures and approval of Percy Rockdale’s nominees as Continuing Directors, mooted the need for expedition and a preliminary injunction hearing, and the parties informed the court that the plaintiff was withdrawing its request for expedition and a preliminary injunction. In exchange for the plaintiff agreeing to withdraw its request for preliminary injunction, the parties agreed to allow plaintiff to reserve the right to challenge the validity of the consent revocations received prior to the mooting actions in the event that Percy Rockdale loses the consent solicitation and the number of revocations received prior to the mooting actions were determinative of the outcome of the consent solicitation. Tax Matters Currently, the Canada Revenue Agency ("CRA") is auditing a subsidiary previously held by the Company. The Company intends to cooperate in audit matters. To date, CRA has not proposed any specific adjustments and the audit is ongoing.

Share-based Compensation

Share-based Compensation	3 Months Ended
	Mar. 31, 2020
Share-based Payment Arrangement [Abstract]
Share-based Compensation	17. Share-based Compensation The Company granted zero options during the three months ended March 31, 2020 and 2019, respectively. Total share-based compensation expense recognized by HC2 and its subsidiaries under all equity compensation arrangements was $1.5 million and $1.3 million for the three months ended March 31, 2020 and 2019, respectively. All grants are time based and vest either immediately or over a period established at grant. The Company recognizes compensation expense for equity awards, reduced by actual forfeitures, using the straight-line basis. Restricted Stock A summary of HC2’s restricted stock activity is as follows: Shares Weighted Average Grant Date Fair Value Unvested - December 31, 2019 2,213,775 $ 5.12 Granted — $ — Vested (1,063,434) $ 5.27 Forfeited (68,629) $ 5.10 Unvested - March 31, 2020 1,081,712 $ 4.98 At March 31, 2020, the total unrecognized stock-based compensation expense related to unvested restricted stock was $3.7 million. The unrecognized compensation cost is expected to be recognized over the remaining weighted average period of 1.1 years. Stock Options A summary of HC2’s stock option activity is as follows: Shares Weighted Average Exercise Price Outstanding - December 31, 2019 7,067,592 $ 6.52 Granted — $ — Exercised — $ — Forfeited — $ — Expired — $ — Outstanding - March 31, 2020 7,067,592 $ 6.52 Eligible for exercise 6,885,584 $ 6.55 At March 31, 2020, the intrinsic value and average remaining life of the Company's outstanding options were zero and approximately 5.01 years, and intrinsic value and average remaining life of the Company's exercisable options were zero and approximately 4.9 years. At March 31, 2020, total unrecognized stock-based compensation expense related to unvested stock options was $0.5 million. The unrecognized compensation cost is expected to be recognized over the remaining weighted average period of 0.96 years. There are 182,008 unvested stock options expected to vest, with a weighted average remaining life of 7.36 years, a weighted average exercise price of $5.45, and an intrinsic value of zero.

Equity

Equity	3 Months Ended
	Mar. 31, 2020
Equity [Abstract]
Equity	18. Equity Series A Preferred Stock and Series A-2 Preferred Stock The Company’s preferred shares authorized, issued and outstanding consisted of the following: March 31, December 31, 2020 2019 Preferred shares authorized, $0.001 par value 20,000,000 20,000,000 Series A shares issued and outstanding 6,375 6,375 Series A-2 shares issued and outstanding 4,000 4,000 Preferred Share Activity CGI Purchase On January 11, 2019, CGI purchased 10,000 shares of Series A-2 Preferred Stock, which are convertible into a total of 1,426,534 shares of the Company's common stock, for a total consideration of $8.3 million. The shares and dividends accrued related to the Series A-2 Preferred Stock owned by CGI are eliminated in consolidation. The shares were purchased at a discount of $1.7 million, which was recorded within the Preferred dividends, deemed dividends, and repurchase gains line item of the Condensed Consolidated Statements of Operations as a deemed dividend. Luxor and Corrib Conversions On August 2, 2016, the Company entered into separate agreements with each of Corrib Master Fund, Ltd. ("Corrib"), then a holder of 1,000 shares of Series A Preferred Stock, and certain investment entities managed by Luxor Capital Group, LP ( "Luxor"), that together then held 9,000 shares of Series A-1 Preferred Stock. In conjunction with the conversions, the Company agreed to provide the following two forms of additional consideration for as long as the Preferred Stock remained entitled to receive dividend payments (the "Additional Share Consideration"): • The Company agreed that in the event that Corrib and Luxor would have been entitled to any Participating Dividends payable, had they not converted the Preferred Stock (as defined in the respective Series A and Series A-1 Certificate of Designation), after the date of their Preferred Share conversion, then the Company will issue to Corrib and Luxor, on the date such Participating Dividends become payable by the Company, in a transaction exempt from the registration requirements of the Securities Act the number of shares of common stock equal to (a) the value of the Participating Dividends Corrib or Luxor would have received pursuant to Sections (2)(c) and (2)(d) of the respective Series A and Series A-1 Certificate of Designation, divided by (b) the Thirty Day VWAP (as defined in the respective Series A and Series A-1 Certificate of Designation) for the period ending two business days prior to the underlying event or transaction that would have entitled Corrib or Luxor to such Participating Dividend had Corrib’s or Luxor’s Preferred Stock remain unconverted. • The Company agreed that it will issue to Corrib and Luxor, on each quarterly anniversary commencing May 29, 2017 (or, if later, the date on which the corresponding dividend payment is made to the holders of the outstanding Preferred Stock), through and until the Maturity Date (as defined in the respective Series A and Series A-1 Certificate of Designation), in a transaction exempt from the registration requirements of the Securities Act the number of shares of common stock equal to (a) 1.875% the Accrued Value (as defined in the respective Series A and Series A-1 Certificate of Designation) of Corrib’s or Luxor’s Preferred Stock as of the Closing Date (as defined in applicable Voluntary Conversion Agreements) divided by (b) the Thirty Day VWAP (as defined in the respective Series A and Series A-1 Certificate of Designation) for the period ending two business days prior to the applicable Dividend Payment Date (as defined in the respective Series A and Series A-1 Certificate of Designation). For the three months ended March 31, 2020, 77,794 and 8,752 shares of the Company's common stock have been issued to Luxor and Corrib, respectively, in conjunction with the Conversion agreement. The fair value of the Additional Share Consideration was valued by the Company at $0.2 million on the date of issuance and was recorded within Preferred stock and deemed dividends from conversion line item of the Condensed Consolidated Statements of Operations as a deemed dividend. Preferred Share Dividends During the three months ended March 31, 2020 and 2019, HC2's Board of Directors declared cash dividends with respect to HC2’s issued and outstanding Preferred Stock, excluding Preferred Stock owned by CGI which is eliminated in consolidation, as presented in the following table (in millions): 2020 Declaration Date March 31, 2020 Holders of Record Date March 31, 2020 Payment Date April 15, 2020 Total Dividend $ 0.2 2019 Declaration Date March 31, 2019 Holders of Record Date March 31, 2019 Payment Date April 15, 2019 Total Dividend $ 0.2

Related Parties

Related Parties	3 Months Ended
	Mar. 31, 2020
Related Party Transactions [Abstract]
Related Parties	19. Related Parties HC2 In January 2015, the Company entered into a services agreement (the "Services Agreement") with Harbinger Capital Partners ("HCP"), a related party of the Company, with respect to the provision of services that may include providing office space and operational support and each party making available their respective employees to provide services as reasonably requested by the other party, subject to any limitations contained in applicable employment agreements and the terms of the Services Agreement. The Company recognized expenses of $0.7 million and $1.0 million and income of zero and $0.1 million for the three months ended March 31, 2020 and 2019, respectively. Three Months Ended March 31, 2020 2019 Corporate Other (1) Total Corporate Other (1) Total Allocated to HC2 by HCP Office space $ 0.5 $ 0.2 $ 0.7 $ 0.7 $ 0.2 $ 0.9 Administrative salaries and benefits — — — 0.1 — 0.1 Other shared overhead — — — — — — Total Expenses 0.5 0.2 0.7 0.8 0.2 1.0 Charged back to HCP by HC2 Administrative salaries and benefits — — — — — — Other shared overhead — — — 0.1 — 0.1 Total Income — — — 0.1 — 0.1 Net related party activity $ 0.5 $ 0.2 $ 0.7 $ 0.7 $ 0.2 $ 0.9 (1) Other in the above table represent certain entities within our Broadcasting, Life Sciences and Insurance segments. Other GMH''s subsidiary GMSL, prior to its sale in February 2020, had transactions with several of its equity method investees. A summary of transactions with such equity method investees and balances outstanding are as follows (in millions). Such activity is reclassified to discontinued operations as a result of the sale of GMSL. See note 3. Discontinued Operations for further information: Three Months Ended March 31, 2020 2019 Net revenue $ 0.7 $ 2.0 Operating expenses $ — $ 0.6 Interest expense $ 0.1 $ 0.3 March 31, December 31, 2020 2019 Accounts receivable $ — $ 1.2 Debt obligations $ — $ 22.5 Accounts payable $ — $ 0.1 Dividends $ — $ 4.5 Life Sciences Pansend has an investment in Triple Ring Technologies, Inc. ("Triple Ring"). Various subsidiaries of HC2 utilize the services of Triple Ring, incurring $0.7 million and zero in services for the three months ended March 31, 2020 and 2019, respectively.

Operating Segment and Related I

Operating Segment and Related Information	3 Months Ended
	Mar. 31, 2020
Segment Reporting [Abstract]
Operating Segment and Related Information	20. Operating Segment and Related Information The Company currently has one primary reportable geographic segments - United States. The Company has seven reportable operating segments based on management’s organization of the enterprise - Construction, Energy, Telecommunications, Insurance, Life Sciences, Broadcasting, Other, and a Non-operating Corporate segment. All inter-segment revenues are eliminated. As a result of the sale of GMSL, and in accordance with ASC 280, the Company no longer considers the results of operations and Balance Sheets of GMH and its subsidiaries as a separate segment. Formerly the Marine Services segment, these entities and the investment in HMN have been reclassified to the Other segment. In addition, as GMSL is a discontinued operation as of March 31, 2020, all operating results of GMSL have been reclassified to Discontinued operations. This has been reflected in the tables below for both the current and historical periods presented. The Company's revenue concentrations of 10% and greater are as follows: Three Months Ended March 31, Segment 2020 2019 Customer A Telecommunications * 11.5% * Less than 10% revenue concentration Summary information with respect to the Company’s operating segments is as follows (in millions): Three Months Ended March 31, 2020 2019 Net revenue Construction $ 176.5 $ 192.1 Energy 10.4 5.1 Telecommunications 186.4 155.5 Insurance 63.8 88.8 Broadcasting 10.1 9.8 Eliminations (*) (2.4) (2.3) Total net revenue $ 444.8 $ 449.0 (*) The Insurance segment revenues are inclusive of realized and unrealized gains and net investment income for the three months ended March 31, 2020 and 2019 which are related to entities under common control which are eliminated or are reclassified in consolidation. Three Months Ended March 31, 2020 2019 Income (loss) from operations Construction $ 2.6 $ 5.7 Energy 1.7 (0.4) Telecommunications 0.1 0.6 Insurance (12.6) 34.4 Life Sciences (3.2) (1.8) Broadcasting (2.9) (3.3) Other (1.0) (0.1) Non-operating Corporate (9.1) (7.2) Eliminations (*) (2.4) (2.3) Total income (loss) from operations $ (26.8) $ 25.6 (*) The Insurance segment revenues are inclusive of realized and unrealized gains and net investment income for the three months ended March 31, 2020 and 2019 which are related to transactions between entities under common control which are eliminated or are reclassified in consolidation. A reconciliation of the Company's consolidated segment operating income to consolidated earnings before income taxes is as follows (in millions): Three Months Ended March 31, 2020 2019 Income (loss) from operations $ (26.8) $ 25.6 Interest expense (21.3) (18.8) Loss on early extinguishment or restructuring of debt (5.8) — Loss from equity investees (2.5) (5.9) Other income, net 2.8 3.4 (Loss) income from continuing operations (53.6) 4.3 Income tax benefit (expense) 12.6 (4.0) (Loss) income from continuing operations (41.0) 0.3 Loss from discontinued operations (including loss on disposal of $39.3 million) (60.0) (6.6) Net loss (101.0) (6.3) Net loss attributable to noncontrolling interest and redeemable noncontrolling interest 17.9 3.5 Net loss attributable to HC2 Holdings, Inc. (83.1) (2.8) Less: Preferred dividends, deemed dividends and repurchase gains 0.4 (1.2) Net loss attributable to common stock and participating preferred stockholders $ (83.5) $ (1.6) Three Months Ended March 31, 2020 2019 Depreciation and Amortization Construction $ 2.6 $ 3.9 Energy 2.1 1.4 Telecommunications 0.1 0.1 Insurance (*) (5.9) (6.5) Broadcasting 1.7 1.4 Total $ 0.6 $ 0.3 (*) Balance includes amortization of negative VOBA, which increases net income. Three Months Ended March 31, 2020 2019 Capital Expenditures (*) Construction $ 2.3 $ 2.6 Energy 1.0 0.1 Insurance 0.1 0.2 Broadcasting 2.7 0.4 Total $ 6.1 $ 3.3 (*) The above capital expenditures exclude assets acquired under terms of capital lease and vendor financing obligations. March 31, December 31, 2020 2019 Investments Construction $ 0.9 $ 0.9 Insurance 4,090.0 4,423.0 Life Sciences 21.0 22.0 Other 42.9 43.1 Eliminations (98.0) (96.9) Total $ 4,056.8 $ 4,392.1 March 31, December 31, 2020 2019 Total Assets Construction $ 557.3 $ 530.4 Energy 144.1 142.8 Telecommunications 123.4 89.3 Insurance 5,264.4 5,611.9 Life Sciences 24.8 28.4 Broadcasting 257.7 257.9 Other 44.2 366.3 Non-operating Corporate 20.7 27.2 Eliminations (97.5) (95.9) Total $ 6,339.1 $ 6,958.3

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2020
Subsequent Events [Abstract]
Subsequent Events	22. Subsequent Events Construction On May 4, 2020, HC2 announced that its Construction segment will pay a cash dividend of $15.0 million, or $3.89 per share. As the largest stockholder of DBM Global Inc., HC2 expects to receive approximately $13.9 million of the total dividend payout. Life Sciences On April 16, 2020, R2 received $10.0 million in funding from Huadong Medicine Company Limited as part of Huadong's $30.0 million Series B equity investment in R2. These funds will be used to commercialize R2's revolutionary CryoAesthetic technology which promises physicians a new way to lighten, brighten and rejuvenate skin. This investment represents the second tranche of Huadong's investment at an approximate post-money valuation of $90.0 million and reduces Pansend's ownership by 7.8% to 56.1%. Corporate On April 16, 2020, HC2 drew $10.0 million on its 2020 Revolving Credit Agreement. HC2 intends to use the proceeds for general corporate purposes.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2020
Accounting Policies [Abstract]
Principles of Consolidation; Intercompany	Principles of Consolidation The Condensed Consolidated Financial Statements include the accounts of the Company, its wholly owned subsidiaries and all other subsidiaries over which the Company exerts control. All intercompany profits, transactions and balances have been eliminated in consolidation. As of March 31, 2020, the results of DBMG, GMH, ANG, ICS, CIG, Genovel, R2, and HC2 Broadcasting have been consolidated into the Company’s results based on guidance from the Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC" 810, Consolidation)
Reclassification	Reclassification Certain previous year amounts have been reclassified to conform with current year presentations, including: • The reclassification of GMSL's results to discontinued operations. Further, the reclassification of prior period assets and liabilities have been classified as held for sale. See Note 3. Discontinued Operations for further information; • As a result of the sale of GMSL, and in accordance with ASC 280, the Company no longer considers the results of operations and Balance Sheets of GMH and its subsidiaries as a separate segment. Formerly the Marine Services segment, these entities and the investment in HMN have been reclassified to the Other segment. See Note 20. Operating Segment and Related Information for further information; and • The restatement of prior year Earnings per share as a result of the discontinued operations noted above. This includes presenting EPS for Net (loss) income from continuing operations, Net (loss) income from discontinuing operations, and Net (loss) income. See Note 21. Basic and Diluted Income Per Common Share for further details.
Accounting Pronouncements	Accounting Pronouncements Adopted in the Current Year The Company has implemented all new accounting pronouncements that are in effect and that may impact its Condensed Consolidated Financial Statements. The Company does not believe that there are any new accounting pronouncements issued since the filing of its 2019 Form 10-K that will have a material impact on its financial condition, results of operations or liquidity. Accounting Pronouncements to be Adopted Subsequent to December 31, 2020 Credit Loss Standard ASU 2016-13, Financial Instruments - Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments , was issued by FASB in June 2016. This standard is effective January 1, 2020 (with early adoption permitted), and will impact, at least to some extent, the Company's accounting and disclosure requirements for it's recoverable from reinsurers, accounts receivable, and mortgage loans. The FASB has voted to delay the effective date of ASU 2016-13 to January 1, 2023 for smaller reporting companies with a revised ASU in the fourth quarter of 2019. Currently, the Company continues to focus on developing models and procedures, with testing and refinement of models occurring in 2020 and 2021 with parallel testing to be performed in 2022. Available for sale fixed maturity securities are not in scope of the new credit loss model, but will undergo targeted improvements to the current reporting model including the establishment of a valuation allowance for credit losses versus the current direct write down approach. The Company will continue to identify any other financial assets not excluded from scope. The Company plans to use the modified retrospective method which will include a cumulative effect adjustment on the balance sheet as of the beginning of the fiscal year of adoption. However, prospective application is required for purchased credit deteriorated assets previously accounted for under ASU 310-39 for debt securities for which an other-than-temporary impairment ("OTTI") was recognized prior to the date of adoption. The Company does not currently expect to early adopt this standard and is currently evaluating the impact of this new accounting guidance on its Condensed Consolidated Financial Statements. Outlined below are key areas of change, although there are other changes not noted below: • Financial assets (or a group of financial assets) measured at amortized cost will be required to be presented at the net amount expected to be collected, with an allowance for credit losses deducted from the amortized cost basis, resulting in a net carrying value that reflects the amount the entity expects to collect on the financial asset at purchase. • Credit losses relating to available for sale fixed maturity securities will be recorded through an allowance for credit losses, rather than reductions in the amortized cost of the securities and is anticipated to increase volatility in the Company's Condensed Consolidated Statements of Operations. The allowance methodology recognizes that value may be realized either through collection of contractual cash flows or through the sale of the security. Therefore, the amount of the allowance for credit losses will be limited to the amount by which fair value is below amortized cost because the classification as available for sale is premised on an investment strategy that recognizes that the investment could be sold at fair value, if cash collection would result in the realization of an amount less than fair value. • The Company's Condensed Consolidated Statements of Operations will reflect the measurement of expected credit losses for newly recognized financial assets as well as the expected increases or decreases (including the reversal of previously recognized losses) of expected credit losses that have taken place during the period. The measurement of expected credit losses is based on relevant information about past events, including historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amount. • Disclosures will be required to include information around how the credit loss allowance was developed, further details on information currently disclosed about credit quality of financing receivables and net investments in leases, and a rollforward of the allowance for credit losses for available for sale fixed maturity securities as well as an aging analysis for securities that are past due. The Company anticipates a significant impact on the systems, processes and controls. While the requirements of the new guidance represent a material change from existing GAAP, the underlying economics of items in scope and related cash flows are unchanged. Focus areas will include, but not be limited to: (i) updating procedures to reflect new guidance requiring establishment of allowance for credit losses on available for sale debt securities; (ii) establishing procedures to review reinsurance risk to include but not limited to review of reinsurer ratings, trust agreements where applicable and historical and current performance; (iii) establishing procedures to identify and review all remaining financial assets within scope; and (iv) developing, testing, and implementing controls for newly developed procedures, as well as for additional annual reporting requirements. Long-Duration Contracts ASU 2018-12, Financial Services - Insurance (Topic 944): Targeted Improvements to the Accounting for Long-Duration Contracts , was issued by the FASB in August 2018 and is expected to have a significant impact on the Company’s Condensed Consolidated Financial Statements and Notes to the Condensed Consolidated Financial Statements. The standard is effective January 1, 2021 (with early adoption permitted), and will impact, at least to some extent, Company's accounting and disclosure requirements for it's long-duration insurance contracts. The Company does not currently expect to early adopt this standard and is currently evaluating the impact of this new accounting guidance on its Condensed Consolidated Financial Statements. Outlined below are key areas of change, although there are other changes not noted below: • Cash flow assumptions must be reviewed at least annually and updated if necessary. The impact of these updates will be reported through net income. Current accounting policy requires the liability assumptions for long-duration contracts and limited payment contracts be locked in at contract inception, unless the contracts project a loss position which would allow the liability assumptions to be unlocked so that the loss could be recognized. • The rate used to discount the liability projections is to be based on an A-rated asset with observable market inputs and duration consistent with the duration of the liabilities. The discount rate is to be updated quarterly with the impact of the change in the discount rate recognized through other comprehensive income. Current accounting policy allows the use of an expected investment yield (which is not required to be observable in the market) to discount the liability projections. • Deferred acquisition costs for long-duration contracts are to be amortized in proportion to premiums, gross profits, or gross margins and those balances must be amortized on a constant-level basis over the expected life of the contract. Current accounting policy would amortize deferred acquisition costs based on revenue and profits. The Company does not have any deferred acquisition costs but VOBA amortization will follow this new guidance. • Market risk benefits are to be measured at fair value and presented separately in the statement of financial position. Under current accounting policy benefit features that will meet the definition of market risk benefits are accounted for as embedded derivatives or insurance liabilities via the benefit ratio model. The Company does not have any benefit features that will be categorized as market risk benefits. • Disaggregated rollforwards of beginning to ending balances of the liability for future policy benefits, policyholder account balances, VOBA, as well as information about significant inputs, judgments, assumptions, and methods used in measurement are required to be disclosed. The Company anticipates that the requirement to update assumptions for liability for future policy benefits will increase volatility in the Company's Condensed Consolidated Statements of Operations while the requirement to update the discount rate will increase volatility in the Company's Condensed Consolidated Statements of Stockholders' Equity. The Company anticipates a significant impact on the systems, processes and controls. While the requirements of the new guidance represent a material change from existing GAAP, the underlying economics of the Company's Insurance segment and related cash flows are unchanged. The FASB has voted to delay the effective date of ASU 2018-12 to January 1, 2024 for smaller reporting companies with a revised ASU in the fourth quarter of 2019. Currently, the Company plans to focus on developing models and procedures through 2021, with testing and refinement of models occurring in 2022 and parallel testing performed in 2023. The Company may choose one of two adoption methods for the liability for future policy benefits: (i) a modified retrospective transition method whereby the entity will apply the amendments to contracts inforce as of the beginning of the earliest period presented on the basis of their existing carrying amounts adjusted for the removal of any related amounts in AOCI or (ii) a full retrospective transition method. Focus areas will include, but not be limited to: (i) determining an appropriate upper-medium grade fixed income instrument yield source from the market; (ii) establishing appropriate aggregation of liabilities; (iii) establishing liability models for each contract grouping identified that may be quickly updated to reflect current inforce listing and new discount rates on a quarterly basis; (iv) establishing appropriate best estimate assumptions with no provision for adverse deviation; (v) establishing procedures for annual review of assumptions including tracking of actual experience for enhanced reporting requirements; (vi) establishing new VOBA amortization that will align with new guidance for DAC amortization; and (vii) developing, testing, and implementing controls for newly developed procedures, as well as for additional annual reporting requirements. Income Taxes In December 2019, the FASB issued ASU 2019-12, Income Taxe s (Topic 740). The new guidance removes the following exceptions from ASC 740, Income Taxes: (i) exception to the incremental approach for intraperiod tax allocation; (ii) exception for the recognition of a deferred tax liability when an equity method investment becomes a foreign subsidiary or a foreign subsidiary becomes an equity method investment, and (iii) exception to the general methodology for calculating income taxes in an interim period when year-to-date losses exceed expected losses for the year. ASU 2019-12 also provides guidance to increase simplicity of Topic 740. This standard is effective January 1, 2021 for public business entities. Certain amendments should be applied retrospectively with cumulative-effect adjustments made to retained earnings, while other amendments should be applied prospectively. The Company is currently evaluating the implementation date and the impact of this amendment on its financial statements. Subsequent Events ASC 855, Subsequent Events requires the Company to evaluate events that occur after the balance sheet date as of which the financial statements are issued, and to determine whether adjustments to or additional disclosures in the financial statements are necessary. See Note 22. Subsequent Events for the summary of the subsequent events.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	3 Months Ended
	Mar. 31, 2020
Accounting Policies [Abstract]
Restricted Cash and Cash Equivalents	The following table provides a reconciliation of cash and cash equivalents and restricted cash to amounts reported within the Condensed Consolidated Balance Sheets and Condensed Consolidated Statements of Cash Flows (in millions): March 31, 2020 2019 Cash and cash equivalents, beginning of period $ 228.8 $ 315.9 Restricted cash included in other assets 1.6 5.4 Total cash and cash equivalents and restricted cash $ 230.4 $ 321.3 Cash and cash equivalents, end of period $ 186.9 $ 293.5 Restricted cash included in other assets 1.4 1.6 Total cash and cash equivalents and restricted cash $ 188.3 $ 295.1
Schedule of Cash and Cash Equivalents	The following table provides a reconciliation of cash and cash equivalents and restricted cash to amounts reported within the Condensed Consolidated Balance Sheets and Condensed Consolidated Statements of Cash Flows (in millions): March 31, 2020 2019 Cash and cash equivalents, beginning of period $ 228.8 $ 315.9 Restricted cash included in other assets 1.6 5.4 Total cash and cash equivalents and restricted cash $ 230.4 $ 321.3 Cash and cash equivalents, end of period $ 186.9 $ 293.5 Restricted cash included in other assets 1.4 1.6 Total cash and cash equivalents and restricted cash $ 188.3 $ 295.1

Discontinued Operations (Tables

Discontinued Operations (Tables)	3 Months Ended
	Mar. 31, 2020
Discontinued Operations and Disposal Groups [Abstract]
Disposal Groups, Including Discontinued Operations	The sale of GMSL closed on February 28, 2020. As a result of the sale, the results of GMSL and transaction related expenses directly attributable to the sale were reported as discontinued operations. Summarized operating results of the discontinued operations are as follows (in millions): Three Months Ended March 31, 2020 2019 Net revenue $ 17.3 $ 42.4 Cost of revenue 18.2 33.2 Selling, general and administrative 13.7 6.0 Depreciation and amortization 3.8 6.6 Other operating expenses — 0.6 Loss from operations (18.4) (4.0) Interest expense (3.6) (3.5) Loss on sale of subsidiary (39.3) — Income from equity investees 0.5 1.0 Other income (loss) 0.9 (0.1) Pre-tax loss from discontinued operations (59.9) (6.6) Income tax benefit (expense) (0.1) — Loss from discontinued operations $ (60.0) $ (6.6) Summarized assets and liabilities of the discontinued operations are as follows (in millions): December 31, 2019 Assets Other invested assets $ 16.9 Cash and cash equivalents 10.2 Accounts receivable, net 26.0 Deferred tax asset — Property, plant and equipment, net 182.1 Goodwill 14.3 Intangibles, net 5.3 Other assets 68.5 Total assets held for sale $ 323.3 Liabilities Accounts payable and other current liabilities $ 33.4 Debt obligations 65.6 Pension Liability 18.8 Other liabilities 36.1 Total liabilities held for sale $ 153.9

Revenue (Tables)

Revenue (Tables)	3 Months Ended
	Mar. 31, 2020
Revenue from Contract with Customer [Abstract]
Reconciliation of Revenue from Segments to Consolidated	Revenue from contracts with customers consist of the following (in millions): Three Months Ended March 31, 2020 2019 Revenue (1) Construction $ 176.5 $ 192.1 Energy 10.4 5.1 Telecommunications 186.4 155.5 Broadcasting 10.1 9.8 Total revenue $ 383.4 $ 362.5 (1) The Insurance segment does not have revenues in scope of ASC 606.
Schedule of Accounts Receivable	Accounts receivables, net from contracts with customers consist of the following (in millions): March 31, December 31, 2020 2019 Accounts receivables with customers Construction $ 208.4 $ 199.2 Energy 22.4 31.1 Telecommunications 74.1 51.9 Broadcasting 7.1 8.5 Total accounts receivables with customers $ 312.0 $ 290.7 Accounts receivable, net consist of the following (in millions): March 31, December 31, 2020 2019 Contracts in progress $ 170.7 $ 177.8 Trade receivables 81.9 60.6 Unbilled retentions 61.2 53.9 Other receivables 21.1 21.0 Allowance for doubtful accounts (1.6) (1.5) Total accounts receivable, net $ 333.3 $ 311.8
Disaggregation of Revenue	The following table disaggregates DBMG's revenue by market (in millions): Three Months Ended March 31, 2020 2019 Commercial $ 62.8 $ 59.4 Convention 2.4 28.7 Healthcare 8.0 8.8 Industrial 58.9 53.8 Transportation 16.3 18.1 Leisure 16.0 14.9 Other 12.1 8.4 Total revenue from contracts with customers 176.5 192.1 Other revenue — — Total Construction segment revenue $ 176.5 $ 192.1 The following table disaggregates ANG's revenue by type (in millions): Three Months Ended March 31, 2020 2019 Volume-related $ 8.7 $ 4.8 Total revenue from contracts with customers 8.7 4.8 RNG incentives 0.1 0.3 Alternative fuel tax credit 1.4 — Other revenue 0.2 — Total Energy segment revenue $ 10.4 $ 5.1 ICS's revenues are predominantly derived from wholesale of international long distance minutes (in millions): Three Months Ended March 31, 2020 2019 Termination of long distance minutes $ 186.4 $ 155.5 Total revenue from contracts with customers 186.4 155.5 Other revenue — — Total Telecommunications segment revenue $ 186.4 $ 155.5 The following table disaggregates the Broadcasting segment's revenue by type (in millions): Three Months Ended March 31, 2020 2019 Network advertising $ 5.0 $ 5.4 Broadcast station 3.5 2.7 Network distribution 1.0 1.5 Other 0.6 0.2 Total revenue from contracts with customers 10.1 9.8 Other revenue — — Total Broadcasting segment revenue $ 10.1 $ 9.8
Contract with Customer, Asset and Liability	Contract assets and contract liabilities consisted of the following (in millions): March 31, December 31, 2020 2019 Contract assets $ 61.5 $ 50.6 Contract liabilities $ (69.6) $ (50.6)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction	The transaction price allocated to remaining unsatisfied performance obligations consisted of the following (in millions): Within one year Within five years Total Commercial $ 145.4 $ — $ 145.4 Convention 19.2 — 19.2 Healthcare 44.8 — 44.8 Industrial 101.6 — 101.6 Transportation 67.5 — 67.5 Leisure 19.8 — 19.8 Other 67.3 — 67.3 Remaining unsatisfied performance obligations $ 465.6 $ — $ 465.6 DBMG includes an additional $19.9 million in its backlog that is not included in the remaining unsatisfied performance obligations noted above. This backlog represents commitments under master service agreements that are estimated amounts of work to be performed based on customer communications, historic experience and knowledge of our customers' intentions.

Investments (Tables)

Investments (Tables)	3 Months Ended
	Mar. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Schedule of Maturities of Fixed Maturity Securities Available-for-Sale	The amortized cost and fair value of fixed maturity securities available-for-sale as of March 31, 2020 are shown by contractual maturity in the table below (in millions). Actual maturities can differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Asset and mortgage-backed securities are shown separately in the table below, as they are not due at a single maturity date: Amortized Fair Corporate, Municipal, U.S. Government and Other securities Due in one year or less $ 42.2 $ 42.2 Due after one year through five years 277.5 269.1 Due after five years through ten years 427.5 392.4 Due after ten years 2,252.5 2,347.4 Subtotal 2,999.7 3,051.1 Mortgage-backed securities 172.5 160.7 Asset-backed securities 651.8 541.2 Total $ 3,824.0 $ 3,753.0
Schedule of Major Industry Types of Fixed Maturity Holdings	The tables below show the major industry types of the Company’s corporate and other fixed maturity securities (in millions): March 31, 2020 December 31, 2019 Amortized Fair % of Amortized Fair % of Finance, insurance, and real estate $ 626.3 $ 585.6 22.4 % $ 632.2 $ 674.9 23.8 % Transportation, communication and other services 794.8 752.8 28.8 % 785.7 855.2 30.3 % Manufacturing 707.2 782.1 29.9 % 728.7 825.9 29.2 % Other 472.1 494.4 18.9 % 422.5 471.0 16.7 % Total $ 2,600.4 $ 2,614.9 100.0 % $ 2,569.1 $ 2,827.0 100.0 %
Other than Temporary Impairment, Credit Losses Recognized in Earnings	Any remaining difference between the fair value and amortized cost is recognized in AOCI. The Company recognized the following (in millions): Three Months Ended March 31, 2020 2019 Net realized and unrealized gains on investments $ 0.8 $ — Other income (expenses), net 0.1 — Total other-than-temporary impairments $ 0.9 $ —
Schedule of Debt Securities, Available-for-sale	The following tables provide information relating to investments in fixed maturity securities (in millions): March 31, 2020 Amortized Cost Unrealized Unrealized Fair Value U.S. Government and government agencies $ 7.5 $ 1.3 $ — $ 8.8 States, municipalities and political subdivisions 391.8 36.0 (0.4) 427.4 Residential mortgage-backed securities 60.0 3.2 (2.2) 61.0 Commercial mortgage-backed securities 112.5 0.7 (13.5) 99.7 Asset-backed securities 651.8 0.7 (111.3) 541.2 Corporate and other 2,600.4 199.3 (184.8) 2,614.9 Total fixed maturity securities $ 3,824.0 $ 241.2 $ (312.2) $ 3,753.0 December 31, 2019 Amortized Unrealized Unrealized Fair Value U.S. Government and government agencies $ 7.0 $ 0.7 $ — $ 7.7 States, municipalities and political subdivisions 405.4 34.7 — 440.1 Residential mortgage-backed securities 63.0 4.5 (0.6) 66.9 Commercial mortgage-backed securities 108.2 1.8 (0.6) 109.4 Asset-backed securities 592.6 2.2 (17.0) 577.8 Corporate and other 2,569.1 273.1 (15.2) 2,827.0 Total fixed maturity securities $ 3,745.3 $ 317.0 $ (33.4) $ 4,028.9 The following table presents the total unrealized losses for the 360 and 139 fixed maturity securities held by the Company as of March 31, 2020 and December 31, 2019, respectively, where the estimated fair value had declined and remained below amortized cost by the indicated amount (in millions): March 31, 2020 December 31, 2019 Fixed maturity securities Unrealized Losses % of Unrealized Losses % of Less than 20% $ (58.0) 18.6 % $ (32.6) 97.6 % 20% or more for less than six months (252.2) 80.8 % — — % 20% or more for six months or greater (2.0) 0.6 % (0.8) 2.4 % Total $ (312.2) 100.0 % $ (33.4) 100.0 %
Schedule of Estimated Fair Value and Gross Unrealized Loss	The following tables present the estimated fair values and gross unrealized losses for the 360 and 139 fixed maturity securities held by the Company that have estimated fair values below amortized cost as of each of March 31, 2020 and December 31, 2019, respectively. The Company does not have any OTTI losses reported in AOCI. These investments are presented by investment category and the length of time the related fair value has remained below amortized cost (in millions): March 31, 2020 Less than 12 months 12 months or greater Total Fair Value Unrealized Fair Unrealized Fair Unrealized U.S. Government and government agencies $ 0.2 $ — $ — $ — $ 0.2 $ — States, municipalities and political subdivisions 28.9 (0.4) — — 28.9 (0.4) Residential mortgage-backed securities 14.6 (1.6) 4.0 (0.6) 18.6 (2.2) Commercial mortgage-backed securities 71.9 (13.5) 0.2 — 72.1 (13.5) Asset-backed securities 482.5 (109.1) 11.0 (2.2) 493.5 (111.3) Corporate and other 765.4 (181.9) 12.1 (2.9) 777.5 (184.8) Total fixed maturity securities $ 1,363.5 $ (306.5) $ 27.3 $ (5.7) $ 1,390.8 $ (312.2) December 31, 2019 Less than 12 months 12 months of greater Total Fair Unrealized Fair Unrealized Fair Unrealized U.S. Government and government agencies $ 0.3 $ — $ — $ — $ 0.3 $ — States, municipalities and political subdivisions 2.0 — — — 2.0 — Residential mortgage-backed securities 2.3 — 8.2 (0.6) 10.5 (0.6) Commercial mortgage-backed securities 58.1 (0.6) 0.2 — 58.3 (0.6) Asset-backed securities 126.5 (1.5) 255.8 (15.5) 382.3 (17.0) Corporate and other 169.6 (3.7) 177.4 (11.5) 347.0 (15.2) Total fixed maturity securities $ 358.8 $ (5.8) $ 441.6 $ (27.6) $ 800.4 $ (33.4)
Debt Securities, Trading, and Equity Securities, FV-NI	The following tables provide information relating to investments in equity securities measured at fair value (in millions): March 31, December 31, Equity securities 2020 2019 Common stock $ 9.7 $ 10.5 Perpetual preferred stock 62.7 82.0 Total equity securities $ 72.4 $ 92.5
Net Investment Income	The major sources of net investment income were as follows (in millions): Three Months Ended March 31, 2020 2019 Fixed maturity securities, available-for-sale at fair value $ 45.6 $ 43.6 Equity securities 1.0 2.5 Mortgage loans 5.4 3.7 Policy loans 0.3 0.3 Other invested assets — 1.2 Gross investment income 52.3 51.3 External investment expense (0.4) (0.2) Net investment income $ 51.9 $ 51.1
Net Realized Gain (Loss) on Investments	The major sources of net realized and unrealized gains and losses on investments were as follows (in millions): Three Months Ended March 31, 2020 2019 Realized gains on fixed maturity securities $ 3.7 $ 0.8 Realized losses on fixed maturity securities (0.6) (1.7) Realized gains on equity securities — 0.1 Realized losses on equity securities — (0.9) Realized gains on mortgage loans 0.1 — Net unrealized gains (losses) on equity securities (21.7) 7.4 Net unrealized gains (losses) on derivative instruments 0.2 (0.2) Impairment loss (0.8) — Net realized and unrealized gains (losses) $ (19.1) $ 5.5

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2020
Fair Value Disclosures [Abstract]
Summary of Assets and Liabilities Measured At Fair Value on Recurring Basis	Assets and liabilities measured at fair value on a recurring basis are summarized below (in millions): March 31, 2020 Fair Value Measurement Using: Total Level 1 Level 2 Level 3 Assets Fixed maturity securities U.S. Government and government agencies $ 8.8 $ 5.5 $ 3.3 $ — States, municipalities and political subdivisions 427.4 — 418.4 9.0 Residential mortgage-backed securities 61.0 — 48.0 13.0 Commercial mortgage-backed securities 99.7 — 65.5 34.2 Asset-backed securities 541.2 — 255.7 285.5 Corporate and other 2,614.9 31.9 2,414.3 168.7 Total fixed maturity securities 3,753.0 37.4 3,205.2 510.4 Equity securities Common stocks 9.7 6.3 — 3.4 Perpetual preferred stocks 62.7 4.4 20.1 38.2 Total equity securities 72.4 10.7 20.1 41.6 Total assets accounted for at fair value $ 3,825.4 $ 48.1 $ 3,225.3 $ 552.0 Liabilities Embedded derivative $ 0.7 $ — $ — $ 0.7 Other 3.7 — — 3.7 Total liabilities accounted for at fair value $ 4.4 $ — $ — $ 4.4 December 31, 2019 Fair Value Measurement Using: Total Level 1 Level 2 Level 3 Assets Fixed maturity securities U.S. Government and government agencies $ 7.7 $ 4.8 $ 2.9 $ — States, municipalities and political subdivisions 440.1 — 440.1 — Residential mortgage-backed securities 66.9 — 57.7 9.2 Commercial mortgage-backed securities 109.4 — 74.8 34.6 Asset-backed securities 577.8 — 27.2 550.6 Corporate and other 2,827.0 46.5 2,669.5 111.0 Total fixed maturity securities 4,028.9 51.3 3,272.2 705.4 Equity securities Common stocks 10.5 7.1 — 3.4 Perpetual preferred stocks 82.0 5.0 22.8 54.2 Total equity securities 92.5 12.1 22.8 57.6 Total assets accounted for at fair value $ 4,121.4 $ 63.4 $ 3,295.0 $ 763.0 Liabilities Embedded Derivatives $ 3.0 $ — $ — $ 3.0 Other 4.8 — — 4.8 Total liabilities accounted for at fair value $ 7.8 $ — $ — $ 7.8
Schedule of Changes in Balances of Level 3 Financial Assets at Fair Value	The following tables summarize changes to the Company’s financial instruments carried at fair value and classified within Level 3 of the fair value hierarchy for the three months ended March 31, 2020 and 2019 (in millions): Total realized/unrealized gains (losses) included in Balance at Net earnings Other comp. Purchases and Sales and Transfer to Transfer out of Balance at Assets Fixed maturity securities States, municipalities and political subdivisions $ — $ 0.1 $ (1.0) $ — $ — $ 9.9 $ — $ 9.0 Residential mortgage-backed securities 9.2 — (1.9) — (0.7) 6.8 (0.4) 13.0 Commercial mortgage-backed securities 34.6 — (5.3) — (0.2) 5.1 — 34.2 Asset-backed securities 550.6 — (93.3) 60.0 (51.5) — (180.3) 285.5 Corporate and other 111.0 (0.1) (13.0) 32.7 (1.3) 40.7 (1.3) 168.7 Total fixed maturity securities 705.4 — (114.5) 92.7 (53.7) 62.5 (182.0) 510.4 Equity securities Common stocks 3.4 — — — — — — 3.4 Perpetual preferred stocks 54.2 — (16.0) — — — — 38.2 Total equity securities 57.6 — (16.0) — — — — 41.6 Total financial assets $ 763.0 $ — $ (130.5) $ 92.7 $ (53.7) $ 62.5 $ (182.0) $ 552.0 Total realized/unrealized (gains) losses included in Balance at Net earnings Other comp. Purchases and Sales and Transfer to Transfer out of Balance at Liabilities Embedded derivative $ 3.0 $ (2.3) $ — $ — $ — $ — $ — $ 0.7 Other 4.8 (1.1) — — — — — 3.7 Total financial liabilities $ 7.8 $ (3.4) $ — $ — $ — $ — $ — $ 4.4 Total realized/unrealized gains (losses) included in Balance at Net earnings Other comp. Purchases and Sales and Transfer to Transfer out of Balance at Assets Fixed maturity securities Residential mortgage-backed securities 19.0 — 0.1 — (0.3) — (5.7) 13.1 Commercial mortgage-backed securities 58.2 — 1.6 2.4 (0.4) — — 61.8 Asset-backed securities 478.2 — 13.3 48.6 (73.6) 5.6 — 472.1 Corporate and other 85.0 — 8.5 4.6 (4.6) 105.0 — 198.5 Total fixed maturity securities 640.4 — 23.5 55.6 (78.9) 110.6 (5.7) 745.5 Equity securities Common stocks 5.9 0.2 — — — — — 6.1 Perpetual preferred stocks 55.3 (0.2) — — — — — 55.1 Total equity securities 61.2 — — — — — — 61.2 Total financial assets $ 701.6 $ — $ 23.5 $ 55.6 $ (78.9) $ 110.6 $ (5.7) $ 806.7 Total realized/unrealized (gains) losses included in Balance at Net earnings Other comp. Purchases and Sales and Transfer to Transfer out of Balance at Liabilities Embedded derivatives $ 8.4 $ (2.3) $ — $ — $ — $ — $ — $ 6.1 Other 3.5 (0.8) — — — — — 2.7 Total financial liabilities $ 11.9 $ (3.1) $ — $ — $ — $ — $ — $ 8.8
Schedule of Financial Instruments Measured at Fair Value on Nonrecurring Basis	The following table presents the carrying amounts and estimated fair values of the Company’s financial instruments, which were not measured at fair value on a recurring basis. The table excludes carrying amounts for cash and cash equivalents, accounts receivable, accounts payable and other current liabilities, and other assets and liabilities approximate fair value due to relatively short periods to maturity (in millions): March 31, 2020 Fair Value Measurement Using: Carrying Value Estimated Fair Value Level 1 Level 2 Level 3 Assets Mortgage loans $ 142.2 $ 142.3 $ — $ — $ 142.3 Policy loans 18.9 18.9 — 18.9 — Total assets not accounted for at fair value $ 161.1 $ 161.2 $ — $ 18.9 $ 142.3 Liabilities Annuity benefits accumulated (1) $ 232.5 $ 229.8 $ — $ — $ 229.8 Long-term obligations (2) 684.6 675.9 — 675.9 — Total liabilities not accounted for at fair value $ 917.1 $ 905.7 $ — $ 675.9 $ 229.8 December 31, 2019 Fair Value Measurement Using: Carrying Value Estimated Fair Value Level 1 Level 2 Level 3 Assets Mortgage loans $ 183.5 $ 183.5 $ — $ — $ 183.5 Policy loans 19.1 19.1 — 19.1 — Total assets not accounted for at fair value $ 202.6 $ 202.6 $ — $ 19.1 $ 183.5 Liabilities Annuity benefits accumulated (1) $ 233.9 $ 231.0 $ — $ — $ 231.0 Long-term obligations (2) 772.0 768.9 — 768.9 — Total liabilities not accounted for at fair value $ 1,005.9 $ 999.9 $ — $ 768.9 $ 231.0

Accounts Receivable, net (Table

Accounts Receivable, net (Tables)	3 Months Ended
	Mar. 31, 2020
Receivables [Abstract]
Schedule of Accounts Receivable	Accounts receivables, net from contracts with customers consist of the following (in millions): March 31, December 31, 2020 2019 Accounts receivables with customers Construction $ 208.4 $ 199.2 Energy 22.4 31.1 Telecommunications 74.1 51.9 Broadcasting 7.1 8.5 Total accounts receivables with customers $ 312.0 $ 290.7 Accounts receivable, net consist of the following (in millions): March 31, December 31, 2020 2019 Contracts in progress $ 170.7 $ 177.8 Trade receivables 81.9 60.6 Unbilled retentions 61.2 53.9 Other receivables 21.1 21.0 Allowance for doubtful accounts (1.6) (1.5) Total accounts receivable, net $ 333.3 $ 311.8

Recoverable from Reinsurers (Ta

Recoverable from Reinsurers (Tables)	3 Months Ended
	Mar. 31, 2020
Insurance [Abstract]
Ceded Credit Risk	Recoverable from reinsurers consists of the following (in millions): March 31, 2020 December 31, 2019 Reinsurer A.M. Best Rating Amount % of Total Amount % of Total Munich American Reassurance Company A+ $ 354.3 37.0 % $ 347.6 36.4 % Hannover Life Reassurance Company of America A+ 320.6 33.5 % 323.3 33.9 % Loyal American Life Insurance Company A 148.6 15.5 % 147.5 15.5 % Great American Life Insurance Company A 57.2 6.0 % 56.2 5.9 % ManhattanLife Assurance Company of America B+ 46.2 4.8 % 47.0 4.9 % Other 31.5 3.2 % 32.1 3.4 % Total $ 958.4 100.0 % $ 953.7 100.0 %

Property, Plant, and Equipmen_2

Property, Plant, and Equipment, net (Tables)	3 Months Ended
	Mar. 31, 2020
Property, Plant and Equipment [Abstract]
Summary of Property, Plant, and Equipment	Property, plant and equipment consists of the following (in millions): March 31, December 31, 2020 2019 Equipment, furniture and fixtures, and software $ 215.5 $ 212.8 Building and leasehold improvements 41.0 40.1 Land 36.5 36.8 Construction in progress 5.6 4.8 Plant and transportation equipment 5.1 5.2 303.7 299.7 Less: Accumulated depreciation 80.3 76.0 Total $ 223.4 $ 223.7

Goodwill and Intangibles, net (

Goodwill and Intangibles, net (Tables)	3 Months Ended
	Mar. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of the Changes in the Carrying Amount of Goodwill by Reporting Unit	The carrying amount of goodwill by segment was as follows (in millions): Construction Energy Broadcasting Total Balance at December 31, 2019 $ 89.0 $ 2.1 $ 21.4 $ 112.5 Translation (0.5) — — (0.5) Balance at March 31, 2020 $ 88.5 $ 2.1 $ 21.4 $ 112.0
Schedule of Indefinite-Lived Intangible Assets	The carrying amount of indefinite-lived intangible assets were as follows (in millions): March 31, December 31, 2020 2019 FCC licenses $ 136.6 $ 136.2 State licenses 2.5 2.5 Total $ 139.1 $ 138.7
Schedule of Intangible Assets Subject to Amortization	The gross carrying amount and accumulated amortization of amortizable intangible assets by major intangible asset class were as follows (in millions): Weighted-Average Original Useful Life March 31, 2020 December 31, 2019 Gross Carrying Amount Accumulated Amortization Net Gross Carrying Amount Accumulated Amortization Net Trade names 13 Years $ 24.2 $ (7.1) $ 17.1 $ 24.2 $ (6.6) $ 17.6 Customer relationships 10 Years 48.3 (14.1) 34.2 48.6 (13.1) 35.5 Channel sharing arrangements 35 Years 27.2 (1.1) 26.1 27.2 (0.9) 26.3 Other 7 Years 5.6 (2.0) 3.6 5.5 (1.9) 3.6 Total $ 105.3 $ (24.3) $ 81.0 $ 105.5 $ (22.5) $ 83.0
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	Excluding the impact of any future acquisitions, dispositions or change in foreign currency, the Company estimates the annual amortization expense of amortizable intangible assets for the next five fiscal years will be as follows (in millions): 2020 $ 6.0 2021 7.8 2022 7.6 2023 7.5 2024 7.0 Thereafter 45.1 Total $ 81.0

Life, Accident and Health Res_2

Life, Accident and Health Reserves (Tables)	3 Months Ended
	Mar. 31, 2020
Insurance [Abstract]
Schedule of Life, Accident and Health Reserves	Life, accident and health reserves consist of the following (in millions): March 31, December 31, 2020 2019 Long-term care insurance reserves $ 4,231.0 $ 4,201.6 Traditional life insurance reserves 170.6 173.4 Other accident and health insurance reserves 192.3 192.1 Total life, accident and health reserves $ 4,593.9 $ 4,567.1 The following table sets forth changes in the liability for claims for the portion of our long-term care insurance reserves (in millions): Three Months Ended March 31, 2020 2019 Beginning balance $ 761.3 $ 738.7 Less: recoverable from reinsurers (131.0) (136.4) Beginning balance, net 630.3 602.3 Incurred related to insured events of: Current year 68.9 62.4 Prior years (13.3) (36.0) Total incurred 55.6 26.4 Paid related to insured events of: Current year (0.6) (0.6) Prior years (42.8) (36.4) Total paid (43.4) (37.0) Interest on liability for policy and contract claims 5.6 5.3 Ending balance, net 648.1 597.0 Add: recoverable from reinsurers 136.2 136.4 Ending balance $ 784.3 $ 733.4

Accounts Payable and Other Cu_2

Accounts Payable and Other Current Liabilities (Tables)	3 Months Ended
	Mar. 31, 2020
Payables and Accruals [Abstract]
Schedule of Accounts Payable and Other Current Liabilities	Accounts payable and other current liabilities consist of the following (in millions): March 31, December 31, 2020 2019 Accounts payable $ 147.4 $ 134.6 Accrued expenses and other current liabilities 51.3 75.2 Accrued interconnection costs 69.6 43.5 Accrued payroll and employee benefits 35.1 39.6 Accrued interest 24.7 11.3 Accrued income taxes 6.3 2.0 Total accounts payable and other current liabilities $ 334.4 $ 306.2

Debt Obligations (Tables)

Debt Obligations (Tables)	3 Months Ended
	Mar. 31, 2020
Debt Disclosure [Abstract]
Schedule Of Debt And Capital Lease Obligations	Debt obligations consist of the following (in millions): March 31, December 31, 2020 2019 Construction LIBOR plus 5.85% Note, due 2023 $ 75.6 $ 77.0 LIBOR plus 1.50% Line of Credit 49.7 48.9 Obligations under finance leases 0.2 0.2 Energy LIBOR plus 3.0% Term Loan due in 2023 26.3 27.1 5.00% Term Loan due in 2022 10.9 11.2 4.50% Note due in 2022 9.9 10.2 Other, various maturity dates 3.0 2.4 Broadcasting 8.50% Note due 2020 39.3 36.2 10.50% Note due 2020 42.5 42.5 Other, various maturity dates 5.1 7.9 Obligations under finance leases 1.2 1.4 Non-Operating Corporate 11.50% Senior Secured Notes, due 2021 393.0 470.0 7.50% Convertible Senior Notes, due 2022 55.0 55.0 LIBOR plus 6.75% Line of Credit (1) — 15.0 Total 711.7 805.0 Issuance discount, net and deferred financing costs (25.7) (31.4) Total debt obligations $ 686.0 $ 773.6 (1) On April 16, 2020, HC2 drew $10.0 million on its 2020 Revolving Credit Agreement. HC2 intends to use the proceeds for general corporate purposes.
Schedule Of Maturities Of Debt And Capital Lease Obligations	Aggregate finance lease and debt payments, including interest are as follows (in millions): Finance Leases Debt Total 2020 $ 1.0 $ 178.0 $ 179.0 2021 0.5 459.0 459.5 2022 — 76.7 76.7 2023 — 93.8 93.8 2024 — 11.3 11.3 Thereafter — 7.5 7.5 Total minimum principal & interest payments 1.5 826.3 827.8 Less: Amount representing interest (0.1) (116.0) (116.1) Total aggregate finance lease and debt payments $ 1.4 $ 710.3 $ 711.7

Commitments and Contingencies (

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Purchase Obligations and Non-Cancellable Operating Leases	Future minimum purchase obligations as of December 31, 2019 were as follows (in millions): 2020 $ 86.3 2021 3.3 2022 0.2 2023 0.2 2024 0.2 Thereafter — Total obligations $ 90.2
Finance Lease, Liability, Maturity	As of December 31, 2019, undiscounted cash flows for finance and operating leases are as follows (in millions): Operating Leases Finance 2020 $ 15.1 $ 1.0 2021 13.4 0.7 2022 10.9 0.1 2023 8.8 — 2024 6.6 — Thereafter 8.2 — Total future lease payments 63.0 1.8 Less: Present values (9.3) (0.1) Total lease liability balance $ 53.7 $ 1.7
Lessee, Operating Lease, Liability, Maturity	As of December 31, 2019, undiscounted cash flows for finance and operating leases are as follows (in millions): Operating Leases Finance 2020 $ 15.1 $ 1.0 2021 13.4 0.7 2022 10.9 0.1 2023 8.8 — 2024 6.6 — Thereafter 8.2 — Total future lease payments 63.0 1.8 Less: Present values (9.3) (0.1) Total lease liability balance $ 53.7 $ 1.7

Share-based Compensation (Table

Share-based Compensation (Tables)	3 Months Ended
	Mar. 31, 2020
Share-based Payment Arrangement [Abstract]
Summary of Company's Restricted Stock Activity	A summary of HC2’s restricted stock activity is as follows: Shares Weighted Average Grant Date Fair Value Unvested - December 31, 2019 2,213,775 $ 5.12 Granted — $ — Vested (1,063,434) $ 5.27 Forfeited (68,629) $ 5.10 Unvested - March 31, 2020 1,081,712 $ 4.98
Summary of Company's Stock Option Activity	A summary of HC2’s stock option activity is as follows: Shares Weighted Average Exercise Price Outstanding - December 31, 2019 7,067,592 $ 6.52 Granted — $ — Exercised — $ — Forfeited — $ — Expired — $ — Outstanding - March 31, 2020 7,067,592 $ 6.52 Eligible for exercise 6,885,584 $ 6.55

Equity (Tables)

Equity (Tables)	3 Months Ended
	Mar. 31, 2020
Equity [Abstract]
Schedule of Stock by Class	The Company’s preferred shares authorized, issued and outstanding consisted of the following: March 31, December 31, 2020 2019 Preferred shares authorized, $0.001 par value 20,000,000 20,000,000 Series A shares issued and outstanding 6,375 6,375 Series A-2 shares issued and outstanding 4,000 4,000
Summary of Cash, PIK and Special Cash Dividends	During the three months ended March 31, 2020 and 2019, HC2's Board of Directors declared cash dividends with respect to HC2’s issued and outstanding Preferred Stock, excluding Preferred Stock owned by CGI which is eliminated in consolidation, as presented in the following table (in millions): 2020 Declaration Date March 31, 2020 Holders of Record Date March 31, 2020 Payment Date April 15, 2020 Total Dividend $ 0.2 2019 Declaration Date March 31, 2019 Holders of Record Date March 31, 2019 Payment Date April 15, 2019 Total Dividend $ 0.2

Related Parties (Tables)

Related Parties (Tables)	3 Months Ended
	Mar. 31, 2020
Related Party Transactions [Abstract]
Related party transactions	Three Months Ended March 31, 2020 2019 Corporate Other (1) Total Corporate Other (1) Total Allocated to HC2 by HCP Office space $ 0.5 $ 0.2 $ 0.7 $ 0.7 $ 0.2 $ 0.9 Administrative salaries and benefits — — — 0.1 — 0.1 Other shared overhead — — — — — — Total Expenses 0.5 0.2 0.7 0.8 0.2 1.0 Charged back to HCP by HC2 Administrative salaries and benefits — — — — — — Other shared overhead — — — 0.1 — 0.1 Total Income — — — 0.1 — 0.1 Net related party activity $ 0.5 $ 0.2 $ 0.7 $ 0.7 $ 0.2 $ 0.9 (1) Other in the above table represent certain entities within our Broadcasting, Life Sciences and Insurance segments. Three Months Ended March 31, 2020 2019 Net revenue $ 0.7 $ 2.0 Operating expenses $ — $ 0.6 Interest expense $ 0.1 $ 0.3 March 31, December 31, 2020 2019 Accounts receivable $ — $ 1.2 Debt obligations $ — $ 22.5 Accounts payable $ — $ 0.1 Dividends $ — $ 4.5

Operating Segment and Related_2

Operating Segment and Related Information (Tables)	3 Months Ended
	Mar. 31, 2020
Segment Reporting [Abstract]
Schedules of Concentration of Risk, by Risk Factor	As a result of the sale of GMSL, and in accordance with ASC 280, the Company no longer considers the results of operations and Balance Sheets of GMH and its subsidiaries as a separate segment. Formerly the Marine Services segment, these entities and the investment in HMN have been reclassified to the Other segment. In addition, as GMSL is a discontinued operation as of March 31, 2020, all operating results of GMSL have been reclassified to Discontinued operations. This has been reflected in the tables below for both the current and historical periods presented. The Company's revenue concentrations of 10% and greater are as follows: Three Months Ended March 31, Segment 2020 2019 Customer A Telecommunications * 11.5%
Summary of Company's Geographic and Operating Segments	Summary information with respect to the Company’s operating segments is as follows (in millions): Three Months Ended March 31, 2020 2019 Net revenue Construction $ 176.5 $ 192.1 Energy 10.4 5.1 Telecommunications 186.4 155.5 Insurance 63.8 88.8 Broadcasting 10.1 9.8 Eliminations (*) (2.4) (2.3) Total net revenue $ 444.8 $ 449.0 (*) The Insurance segment revenues are inclusive of realized and unrealized gains and net investment income for the three months ended March 31, 2020 and 2019 which are related to entities under common control which are eliminated or are reclassified in consolidation. Three Months Ended March 31, 2020 2019 Income (loss) from operations Construction $ 2.6 $ 5.7 Energy 1.7 (0.4) Telecommunications 0.1 0.6 Insurance (12.6) 34.4 Life Sciences (3.2) (1.8) Broadcasting (2.9) (3.3) Other (1.0) (0.1) Non-operating Corporate (9.1) (7.2) Eliminations (*) (2.4) (2.3) Total income (loss) from operations $ (26.8) $ 25.6 (*) The Insurance segment revenues are inclusive of realized and unrealized gains and net investment income for the three months ended March 31, 2020 and 2019 which are related to transactions between entities under common control which are eliminated or are reclassified in consolidation. A reconciliation of the Company's consolidated segment operating income to consolidated earnings before income taxes is as follows (in millions): Three Months Ended March 31, 2020 2019 Income (loss) from operations $ (26.8) $ 25.6 Interest expense (21.3) (18.8) Loss on early extinguishment or restructuring of debt (5.8) — Loss from equity investees (2.5) (5.9) Other income, net 2.8 3.4 (Loss) income from continuing operations (53.6) 4.3 Income tax benefit (expense) 12.6 (4.0) (Loss) income from continuing operations (41.0) 0.3 Loss from discontinued operations (including loss on disposal of $39.3 million) (60.0) (6.6) Net loss (101.0) (6.3) Net loss attributable to noncontrolling interest and redeemable noncontrolling interest 17.9 3.5 Net loss attributable to HC2 Holdings, Inc. (83.1) (2.8) Less: Preferred dividends, deemed dividends and repurchase gains 0.4 (1.2) Net loss attributable to common stock and participating preferred stockholders $ (83.5) $ (1.6) Three Months Ended March 31, 2020 2019 Depreciation and Amortization Construction $ 2.6 $ 3.9 Energy 2.1 1.4 Telecommunications 0.1 0.1 Insurance (*) (5.9) (6.5) Broadcasting 1.7 1.4 Total $ 0.6 $ 0.3 (*) Balance includes amortization of negative VOBA, which increases net income. Three Months Ended March 31, 2020 2019 Capital Expenditures (*) Construction $ 2.3 $ 2.6 Energy 1.0 0.1 Insurance 0.1 0.2 Broadcasting 2.7 0.4 Total $ 6.1 $ 3.3 (*) The above capital expenditures exclude assets acquired under terms of capital lease and vendor financing obligations.
Segment Reporting for Long-term investments, Property and Equipment - Net and Assets	March 31, December 31, 2020 2019 Investments Construction $ 0.9 $ 0.9 Insurance 4,090.0 4,423.0 Life Sciences 21.0 22.0 Other 42.9 43.1 Eliminations (98.0) (96.9) Total $ 4,056.8 $ 4,392.1 March 31, December 31, 2020 2019 Total Assets Construction $ 557.3 $ 530.4 Energy 144.1 142.8 Telecommunications 123.4 89.3 Insurance 5,264.4 5,611.9 Life Sciences 24.8 28.4 Broadcasting 257.7 257.9 Other 44.2 366.3 Non-operating Corporate 20.7 27.2 Eliminations (97.5) (95.9) Total $ 6,339.1 $ 6,958.3

Basic and Diluted Income Per _2

Basic and Diluted Income Per Common Share (Tables)	3 Months Ended
	Mar. 31, 2020
Earnings Per Share [Abstract]
Calculation of Basic Income (Loss) Per Common Share to Diluted Income (Loss) Per Common Share	The following table presents a reconciliation of net income (loss) used in basic and diluted EPS calculations (in millions, except per share amounts): Three Months Ended March 31, 2020 2019 Amounts attributable to HC2 common and participating preferred stockholders Loss from continuing operations $ (41.0) $ 0.3 Net loss attributable to noncontrolling interest and redeemable noncontrolling interest 2.6 2.4 Loss (income) from continuing operations attributable to the Company (38.4) 2.7 Less: Preferred dividends, deemed dividends and repurchase gains 0.4 (1.2) (Loss) income from continuing operations attributable to HC2 common stockholders (38.8) 3.9 Loss from discontinued operations (including loss on disposal of $39.3 million) (60.0) (6.6) Net loss attributable to noncontrolling interest and redeemable noncontrolling interest 15.3 1.1 Loss from discontinued operations, net of tax and noncontrolling interest $ (44.7) $ (5.5) Net loss attributable to common stock and participating preferred stockholders $ (83.5) $ (1.6) Earnings allocable to common shares: Participating shares at end of period: Weighted-average common stock outstanding 45.9 44.8 Unvested restricted stock — 0.4 Preferred stock (as-converted basis) — 2.2 Total 45.9 47.4 Percentage of (loss) income allocated to: Common stock 100.0 % 94.5 % Unvested restricted stock — % 0.8 % Preferred stock — % 4.6 % Numerator for earnings per share, basic: Net (loss) income from continuing operations attributable to common stock, basic $ (38.8) $ 3.7 Net loss from discontinued operations attributable to common stock, basic and diluted $ (44.7) $ (5.2) Net loss attributable to common stock and participating preferred stockholders, basic and diluted $ (83.5) $ (1.5) Earnings allocable to common shares, diluted: Numerator for earnings per share, diluted Effect of assumed shares under treasury stock method for stock options and restricted shares and if-converted method for convertible instruments $ — $ (1.6) Net (loss) income from continuing operations attributable to common stock, diluted $ (38.8) $ 2.1 Net (loss) income from discontinued operations attributable to common stock, diluted $ (44.7) $ (5.2) Net loss attributable to common stock and participating preferred stockholders, diluted $ (83.5) $ (3.1) Denominator for basic and dilutive earnings per share: Weighted average common shares outstanding - basic 45.9 44.8 Effect of assumed shares under treasury stock method for stock options and restricted shares and if-converted method for convertible instruments — 14.9 Weighted average common shares outstanding - diluted 45.9 59.7 (Loss) income per share - continuing operations Basic: $ (0.85) $ 0.08 Diluted: $ (0.85) $ 0.04 Loss per share - Discontinued operations Basic: $ (0.97) $ (0.12) Diluted: $ (0.97) $ (0.09) Loss per share - Net loss attributable to common stock and participating preferred stockholders Basic: $ (1.82) $ (0.03) Diluted: $ (1.82) $ (0.05)

Organization and Business (Deta

Organization and Business (Details) - security	3 Months Ended
	Mar. 31, 2020	Oct. 30, 2019
Business And Organization [Line Items]
Number of reportable segments	7
DBMG
Business And Organization [Line Items]
Parents interest, controlling	92.00%
Global Marine Systems Limited [Member]
Business And Organization [Line Items]
Parents interest, controlling		49.00%
ANG
Business And Organization [Line Items]
Parents interest, controlling	69.00%
PTGI-ICS
Business And Organization [Line Items]
Parents interest, controlling	100.00%
Insurance Companies
Business And Organization [Line Items]
Parents interest, controlling	100.00%
Genoval Orthopedics inc.
Business And Organization [Line Items]
Parents interest, controlling	80.00%
R2 Dermatology, Inc.
Business And Organization [Line Items]
Parents interest, controlling	64.00%
Medibeacon Inc., and Triple Ring Technologies, Inc
Business And Organization [Line Items]
Parents interest, controlling	47.00%
HC2 Broadcasting Holdings, Inc
Business And Organization [Line Items]
Parents interest, controlling	98.00%
DTV America
Business And Organization [Line Items]
Parents interest, controlling	50.00%
Minority Holders
Business And Organization [Line Items]
Percentage of ownership interest acquired	10.00%
GMH
Business And Organization [Line Items]
Parents interest, controlling	73.00%
Huawaei Marine Network [Member]
Business And Organization [Line Items]
Parents interest, controlling	49.00%

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Schedule of Cash and Cash Equivalents (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Cash and cash equivalents	$ 186.9	$ 228.8	$ 293.5	$ 315.9
Restricted cash included in other assets	1.4	1.6	1.6	5.4
Total cash and cash equivalents and restricted cash	$ 188.3	$ 230.4	$ 295.1	$ 321.3

Discontinued Operations (Detail

Discontinued Operations (Details) - USD ($)	Feb. 28, 2020	Jan. 31, 2020	Mar. 31, 2020	Mar. 31, 2019	Mar. 13, 2020	Mar. 02, 2020	Jan. 30, 2020	Oct. 30, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on sale of subsidiary			$ (39,300,000)	$ 0
, Disposal Of subsidiary			(22,800,000)	0
Interest Expense			21,300,000	18,800,000
Amortization of (discount) premium on investments			2,000,000	1,600,000
Proceeds from divestiture of businesses			$ 144,000,000	$ 0
New Saxon 2019 Limited
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Parents interest, controlling			30.00%				73.00%
Marine Services
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on sale of subsidiary	$ (39,300,000)
, Disposal Of subsidiary	31,300,000
Ownership percentage before sale of stock		100.00%
Consideration to be received							$ 250,000,000	$ 140,000,000
Potential earn-out, maximum							12,500,000
Consideration held in escrow for future losses payable							1,250,000
Consideration held of escrow for purchase price adjustment							1,910,000
Consideration to be paid on the earlier of December 31, 2020 or the date on which a cash collateralized bond in connection with Company's bonding facility is released							$ 2,400,000
Proceeds from Divestiture of Businesses, Net of Cash Divested	98,600,000
Proceeds from divestiture of businesses	144,000,000
Marine Services | Non- controlling Interest
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash Divested from Deconsolidation	36,800,000
Marine Services | Noncontrolling Interest Redeemable [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash Divested from Deconsolidation	5,500,000
Secured Indenture
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Debt instrument, amount redeemed						$ 76,900,000
Interest Expense			$ 2,200,000
Amortization of debt issuance costs			200,000
Amortization of (discount) premium on investments			100,000
Revolving Credit Agreement
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Face amount	$ 15,000,000		15,000,000		$ 15,000,000
Interest Expense			200,000
Amortization of debt issuance costs			$ 100,000

Summarized operating results of

Summarized operating results of the discontinued operations (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net revenue	$ 17.3	$ 42.4
Cost of revenue	18.2	33.2
Selling, general and administrative	13.7	6
Depreciation and amortization	3.8	6.6
Other operating expenses	0	0.6
Loss from operations	(18.4)	(4)
Interest expense	(3.6)	(3.5)
Loss on sale of subsidiary	39.3	0
Income from equity investees	0.5	1
Other income (loss)	0.9	(0.1)
Pre-tax loss from discontinued operations	(59.9)	(6.6)
Income tax benefit (expense)	(0.1)	0
Loss from discontinued operations	$ (60)	$ (6.6)

Summarized assets and liabiliti

Summarized assets and liabilities of the of discontinued operations (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Assets
Other invested assets		$ 16.9
Cash and cash equivalents		10.2
Accounts receivable, net		26
Deferred tax asset		0
Property, plant and equipment, net		182.1
Goodwill		14.3
Intangibles, net		5.3
Other assets		68.5
Total assets held for sale	$ 0	323.3
Liabilities
Accounts payable and other current liabilities		33.4
Debt obligations		65.6
Pension Liability		18.8
Other liabilities		36.1
Total liabilities held for sale	$ 0	$ 153.9

Revenue - Reconciliation of Rev

Revenue - Reconciliation of Revenue from Segments to Consolidated (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information [Line Items]
Revenue	$ 383.4	$ 362.5
Construction
Segment Reporting Information [Line Items]
Revenue	176.5	192.1
Energy
Segment Reporting Information [Line Items]
Revenue	8.7	4.8
Telecommunications
Segment Reporting Information [Line Items]
Revenue	186.4	155.5
Broadcasting
Segment Reporting Information [Line Items]
Revenue	10.1	9.8
Operating Segments | Construction
Segment Reporting Information [Line Items]
Revenue	176.5	192.1
Operating Segments | Energy
Segment Reporting Information [Line Items]
Revenue	10.4	5.1
Operating Segments | Telecommunications
Segment Reporting Information [Line Items]
Revenue	186.4	155.5
Operating Segments | Broadcasting
Segment Reporting Information [Line Items]
Revenue	$ 10.1	$ 9.8

Revenue - Schedule of Accounts

Revenue - Schedule of Accounts Receivable (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Total accounts receivables with customers	$ 312	$ 290.7
Construction
Segment Reporting Information [Line Items]
Total accounts receivables with customers	208.4	199.2
Energy
Segment Reporting Information [Line Items]
Total accounts receivables with customers	22.4	31.1
Telecommunications
Segment Reporting Information [Line Items]
Total accounts receivables with customers	74.1	51.9
Broadcasting
Segment Reporting Information [Line Items]
Total accounts receivables with customers	$ 7.1	$ 8.5

Revenue - Construction Segment

Revenue - Construction Segment Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue [Line Items]
Revenue	$ 383.4	$ 362.5
Net revenue	444.8	449
Construction
Disaggregation of Revenue [Line Items]
Revenue	176.5	192.1
Other revenue	0	0
Net revenue	176.5	192.1
Construction | Commercial Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue	62.8	59.4
Construction | Convention Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue	2.4	28.7
Construction | Healthcare Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue	8	8.8
Construction | Industrial Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue	58.9	53.8
Construction | Transportation
Disaggregation of Revenue [Line Items]
Revenue	16.3	18.1
Construction | Other Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue	12.1	8.4
Construction | Leisure
Disaggregation of Revenue [Line Items]
Revenue	$ 16	$ 14.9

Revenue - Construction Segmen_2

Revenue - Construction Segment Contract with Customer, Asset and Liability (Details) - Construction - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Contract assets	$ 61.5	$ 50.6
Contract liabilities	$ (69.6)	$ (50.6)

Revenue - Narrative (Details)

Revenue - Narrative (Details) - Construction $ in Millions	Mar. 31, 2020USD ($)
Revenue from External Customer [Line Items]
Change in contract assets costs in excess of billings, new commercial contracts	$ 19
Change in contract assets costs in excess of billings, transfer to receivables	8.1
Change in contract liabilities costs in excess of billings, new commercial contracts	52.7
Change in contract liabilities costs in excess of billings, transfer to receivables	33.7
Remaining commitment obligations, amount	$ 19.9

Revenue - Schedule of Construct

Revenue - Schedule of Construction Segment Revenue (Details) - Construction $ in Millions	Mar. 31, 2020USD ($)
Segment Reporting Information [Line Items]
Remaining performance obligations	$ 465.6
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-04-01
Segment Reporting Information [Line Items]
Remaining performance obligations	$ 465.6
Remaining performance obligation period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01
Segment Reporting Information [Line Items]
Remaining performance obligations	$ 0
Remaining performance obligation period	5 years
Commercial
Segment Reporting Information [Line Items]
Remaining performance obligations	$ 145.4
Commercial | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-04-01
Segment Reporting Information [Line Items]
Remaining performance obligations	$ 145.4
Remaining performance obligation period	1 year
Commercial | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01
Segment Reporting Information [Line Items]
Remaining performance obligations	$ 0
Remaining performance obligation period	5 years
Convention
Segment Reporting Information [Line Items]
Remaining performance obligations	$ 19.2
Convention | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-04-01
Segment Reporting Information [Line Items]
Remaining performance obligations	$ 19.2
Remaining performance obligation period	1 year
Convention | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01
Segment Reporting Information [Line Items]
Remaining performance obligations	$ 0
Remaining performance obligation period	5 years
Healthcare
Segment Reporting Information [Line Items]
Remaining performance obligations	$ 44.8
Healthcare | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-04-01
Segment Reporting Information [Line Items]
Remaining performance obligations	$ 44.8
Remaining performance obligation period	1 year
Healthcare | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01
Segment Reporting Information [Line Items]
Remaining performance obligations	$ 0
Remaining performance obligation period	5 years
Industrial
Segment Reporting Information [Line Items]
Remaining performance obligations	$ 101.6
Industrial | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-04-01
Segment Reporting Information [Line Items]
Remaining performance obligations	$ 101.6
Remaining performance obligation period	1 year
Industrial | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01
Segment Reporting Information [Line Items]
Remaining performance obligations	$ 0
Remaining performance obligation period	5 years
Transportation
Segment Reporting Information [Line Items]
Remaining performance obligations	$ 67.5
Transportation | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-04-01
Segment Reporting Information [Line Items]
Remaining performance obligations	$ 67.5
Remaining performance obligation period	1 year
Transportation | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01
Segment Reporting Information [Line Items]
Remaining performance obligations	$ 0
Remaining performance obligation period	5 years
Leisure
Segment Reporting Information [Line Items]
Remaining performance obligations	$ 19.8
Leisure | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-04-01
Segment Reporting Information [Line Items]
Remaining performance obligations	19.8
Leisure | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01
Segment Reporting Information [Line Items]
Remaining performance obligations	0
Other
Segment Reporting Information [Line Items]
Remaining performance obligations	67.3
Other | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-04-01
Segment Reporting Information [Line Items]
Remaining performance obligations	$ 67.3
Remaining performance obligation period	1 year
Other | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01
Segment Reporting Information [Line Items]
Remaining performance obligations	$ 0
Remaining performance obligation period	5 years

Revenue - Energy Segment Disagg

Revenue - Energy Segment Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information [Line Items]
Revenue	$ 383.4	$ 362.5
Net revenue	444.8	449
Energy
Segment Reporting Information [Line Items]
Revenue	8.7	4.8
RNG Incentives	0.1	0.3
Alternative Fuel Tax Credit	1.4	0
Other revenue	0.2	0
Net revenue	10.4	5.1
Volume-related | Energy
Segment Reporting Information [Line Items]
Revenue	$ 8.7	$ 4.8

Revenue - Telecommunications Se

Revenue - Telecommunications Segment Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue [Line Items]
Revenue	$ 383.4	$ 362.5
Net revenue	444.8	449
Telecommunications
Disaggregation of Revenue [Line Items]
Revenue	186.4	155.5
Other revenue	0	0
Net revenue	186.4	155.5
Telecommunications | Termination of long distance minutes
Disaggregation of Revenue [Line Items]
Revenue	$ 186.4	$ 155.5

Revenue - Broadcasting Segment

Revenue - Broadcasting Segment Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information [Line Items]
Revenue	$ 383.4	$ 362.5
Net revenue	444.8	449
Broadcasting
Segment Reporting Information [Line Items]
Revenue	10.1	9.8
Other revenue	0	0
Net revenue	10.1	9.8
Network advertising | Broadcasting
Segment Reporting Information [Line Items]
Revenue	5	5.4
Broadcast station | Broadcasting
Segment Reporting Information [Line Items]
Revenue	3.5	2.7
Network distribution | Broadcasting
Segment Reporting Information [Line Items]
Revenue	1	1.5
Other | Broadcasting
Segment Reporting Information [Line Items]
Revenue	$ 0.6	$ 0.2

Revenue - Broadcasting Segmen_2

Revenue - Broadcasting Segment Remaining Unsatisfied Performance Obligations (Details) - Broadcasting $ in Millions	Mar. 31, 2020USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 4.7
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation period	5 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 6.5
Network advertising | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation period	1 year
Network advertising | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 4.3
Network advertising | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation period	5 years
Broadcast station | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation period	1 year
Broadcast station | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 6.5
Broadcast station | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation period	5 years
Other | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation period	1 year
Other | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation period	5 years
Network Distribution Revenue [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 0.4

Acquisitions, Dispositions, and

Acquisitions, Dispositions, and Deconsolidations - Other Segments (Details) - USD ($) $ in Thousands	Feb. 28, 2020	Oct. 30, 2019	Jan. 31, 2020	Mar. 31, 2020	Mar. 31, 2019	Jun. 30, 2020	Jan. 30, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Disposition of subsidiary				$ 22,800	$ 0
Proceeds from divestiture of businesses				144,000	0
Loss on sale of subsidiary				(39,300)	0
Huawei Marine Networks [Member]
Business Acquisition [Line Items]
Consideration to be received		$ 285,000
Equity Method Investments				$ 1,500	$ 4,800			$ 5,000	$ 12,700
Marine Services
Business Acquisition [Line Items]
Disposition of subsidiary	$ (31,300)
Ownership percentage before sale of stock			100.00%
Consideration to be received		$ 140,000					$ 250,000
Potential earn-out, maximum							12,500
Consideration held in escrow for future losses payable							1,250
Consideration held of escrow for purchase price adjustment							1,910
Consideration to be paid on the earlier of December 31, 2020 or the date on which a cash collateralized bond in connection with Company's bonding facility is released							$ 2,400
Proceeds from divestiture of businesses	144,000
Proceeds from Divestiture of Businesses, Net of Cash Divested	98,600
Loss on sale of subsidiary	(39,300)
Proceeds from Divestiture of Businesses, Cash Held For Operations	3,100
Marine Services | Non- controlling Interest
Business Acquisition [Line Items]
Cash Divested from Deconsolidation	36,800
Marine Services | Noncontrolling Interest Redeemable [Member]
Business Acquisition [Line Items]
Cash Divested from Deconsolidation	$ 5,500
Marine Services
Business Acquisition [Line Items]
Parents interest, controlling		49.00%
Marine Services | Scenario, Forecast
Business Acquisition [Line Items]
Parents interest, controlling						30.00%
New Saxon 2019 Limited
Business Acquisition [Line Items]
Parents interest, controlling				30.00%			73.00%
New Saxon 2019 Limited | Scenario, Forecast
Business Acquisition [Line Items]
Parents interest, controlling						19.00%
Huawei Marine Networks [Member]
Business Acquisition [Line Items]
Ownership percentage before sale of stock		49.00%

Acquisitions, Dispositions, a_2

Acquisitions, Dispositions, and Deconsolidations - Energy Acquisitions (Details) - ampCNG	Jun. 14, 2019USD ($)security$ / shares
Energy
Business Acquisition [Line Items]
Number of natural gas fueling stations acquired | security	20
Consideration transferred	$ 41,200,000
Number of natural gas fueling stations | security	60
ANG | Term Loan
Business Acquisition [Line Items]
Face amount	$ 28,000,000
Duration of warrants	10 years
Preferred stock and warrants issued for common stock	$ 14,000,000
Interest rate (as a percent)	14.00%
Redemption period	4 years
Exercise price of warrants (in dollars per share) | $ / shares	$ 0.001
Percentage of warrants during time of exercise	6.00%
Proceeds from warrant exercises	$ 5,000,000

Acquisitions, Dispositions, a_3

Acquisitions, Dispositions, and Deconsolidations - Broadcasting Acquisitions (Details) $ in Millions	3 Months Ended
	Mar. 31, 2019USD ($)
Broadcasting
Business Acquisition [Line Items]
Consideration paid	$ 71.4

Investments - Schedule of Fixed

Investments - Schedule of Fixed Maturity Securities (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 3,824
Unrealized Losses	(312.2)	$ (33.4)
Fair Value	3,753	4,028.9
Total fixed maturity securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	3,824	3,745.3
Unrealized Gains	241.2	317
Unrealized Losses	(312.2)	(33.4)
Fair Value	3,753	4,028.9
U.S. Government and government agencies
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	7.5	7
Unrealized Gains	1.3	0.7
Unrealized Losses	0	0
Fair Value	8.8	7.7
States, municipalities and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	391.8	405.4
Unrealized Gains	36	34.7
Unrealized Losses	(0.4)	0
Fair Value	427.4	440.1
Residential mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	60	63
Unrealized Gains	3.2	4.5
Unrealized Losses	(2.2)	(0.6)
Fair Value	61	66.9
Commercial mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	112.5	108.2
Unrealized Gains	0.7	1.8
Unrealized Losses	(13.5)	(0.6)
Fair Value	99.7	109.4
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	651.8	592.6
Unrealized Gains	0.7	2.2
Unrealized Losses	(111.3)	(17)
Fair Value	541.2	577.8
Corporate and other
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	2,600.4	2,569.1
Unrealized Gains	199.3	273.1
Unrealized Losses	(184.8)	(15.2)
Fair Value	$ 2,614.9	$ 2,827

Investments - Schedule of Matur

Investments - Schedule of Maturities of Fixed Maturity Securities Available-for-Sale (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Amortized Cost
Amortized Cost	$ 3,824
Fair Value
Fair Value	3,753	$ 4,028.9
Corporate, Municipal, U.S. Government and Other securities
Amortized Cost
Due in one year or less	42.2
Due after one year through five years	277.5
Due after five years through ten years	427.5
Due after ten years	2,252.5
Subtotal	2,999.7
Fair Value
Due in one year or less	42.2
Due after one year through five years	269.1
Due after five years through ten years	392.4
Due after ten years	2,347.4
Subtotal	3,051.1
Mortgage-backed securities
Amortized Cost
Amortized cost, without single maturity date	172.5
Fair Value
Fair value, without single maturity date	160.7
Asset-backed securities
Amortized Cost
Amortized cost, without single maturity date	651.8
Amortized Cost	651.8	592.6
Fair Value
Fair value, without single maturity date	541.2
Fair Value	$ 541.2	$ 577.8

Investments - Schedule of Major

Investments - Schedule of Major Industry Types of Fixed Maturity Holdings (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 3,824
Fair Value	3,753	$ 4,028.9
Corporate And Other Fixed Maturities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	2,600.4	2,569.1
Fair Value	$ 2,614.9	$ 2,827
Percentage of Total	100.00%	100.00%
Finance, insurance, and real estate | Corporate And Other Fixed Maturities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 626.3	$ 632.2
Fair Value	$ 585.6	$ 674.9
Percentage of Total	22.40%	23.80%
Transportation, communication and other services | Corporate And Other Fixed Maturities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 794.8	$ 785.7
Fair Value	$ 752.8	$ 855.2
Percentage of Total	28.80%	30.30%
Manufacturing | Corporate And Other Fixed Maturities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 707.2	$ 728.7
Fair Value	$ 782.1	$ 825.9
Percentage of Total	29.90%	29.20%
Other | Corporate And Other Fixed Maturities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 472.1	$ 422.5
Fair Value	$ 494.4	$ 471
Percentage of Total	18.90%	16.70%

Investments - Other than Tempor

Investments - Other than Temporary Impairment, Credit Losses Recognized in Earnings (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Total other-than-temporary impairments	$ 0.9	$ 0
Net realized and unrealized gains on investments
Debt Securities, Available-for-sale [Line Items]
Total other-than-temporary impairments	0.8	0
Other income (expenses), net
Debt Securities, Available-for-sale [Line Items]
Total other-than-temporary impairments	$ 0.1	$ 0

Investments - Schedule of Unrea

Investments - Schedule of Unrealized Losses for Fixed Maturities and Equity Securities (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Fixed Maturity Securities, Unrealized Losses
Less than 20%	$ (58)	$ (32.6)
20% or more for less than six months	(252.2)	0
20% or more for six months or greater	(2)	(0.8)
Total	$ (312.2)	$ (33.4)
Fixed Maturity Securiites, Percentage of Sales
Less than 20%	18.60%	97.60%
20% or more for less than six months	80.80%	0.00%
20% or more for six months or greater	0.60%	2.40%
Total	100.00%	100.00%

Investments - Narrative (Detail

Investments - Narrative (Details) - security	Mar. 31, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Number of fixed maturity and equity securities	360	139
Percentage of gross unrealized loss	100.00%	100.00%
Total fixed maturity securities | Investment grade
Debt Securities, Available-for-sale [Line Items]
Percentage of gross unrealized loss	77.50%	68.30%
Percentage of fair value	88.00%	81.80%

Investments - Schedule of Estim

Investments - Schedule of Estimated Fair Values and Gross Unrealized Losses (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Less than 12 months
Fair Value	$ 1,363.5	$ 358.8
Unrealized Losses	(306.5)	(5.8)
12 months or greater
Fair Value	27.3	441.6
Unrealized Losses	(5.7)	(27.6)
Fair Value	1,390.8	800.4
Unrealized Losses	(312.2)	(33.4)
U.S. Government and government agencies
Less than 12 months
Fair Value	0.2	0.3
Unrealized Losses	0	0
12 months or greater
Fair Value	0	0
Unrealized Losses	0	0
Fair Value	0.2	0.3
Unrealized Losses	0	0
States, municipalities and political subdivisions
Less than 12 months
Fair Value	28.9	2
Unrealized Losses	(0.4)	0
12 months or greater
Fair Value	0	0
Unrealized Losses	0	0
Fair Value	28.9	2
Unrealized Losses	(0.4)	0
Residential mortgage-backed securities
Less than 12 months
Fair Value	14.6	2.3
Unrealized Losses	(1.6)	0
12 months or greater
Fair Value	4	8.2
Unrealized Losses	(0.6)	(0.6)
Fair Value	18.6	10.5
Unrealized Losses	(2.2)	(0.6)
Commercial mortgage-backed securities
Less than 12 months
Fair Value	71.9	58.1
Unrealized Losses	(13.5)	(0.6)
12 months or greater
Fair Value	0.2	0.2
Unrealized Losses	0	0
Fair Value	72.1	58.3
Unrealized Losses	(13.5)	(0.6)
Asset-backed securities
Less than 12 months
Fair Value	482.5	126.5
Unrealized Losses	(109.1)	(1.5)
12 months or greater
Fair Value	11	255.8
Unrealized Losses	(2.2)	(15.5)
Fair Value	493.5	382.3
Unrealized Losses	(111.3)	(17)
Corporate and other
Less than 12 months
Fair Value	765.4	169.6
Unrealized Losses	(181.9)	(3.7)
12 months or greater
Fair Value	12.1	177.4
Unrealized Losses	(2.9)	(11.5)
Fair Value	777.5	347
Unrealized Losses	$ (184.8)	$ (15.2)

Investments - Equity Securities

Investments - Equity Securities (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Total equity securities	$ 72.4	$ 92.5
Common stock
Debt Securities, Available-for-sale [Line Items]
Total equity securities	9.7	10.5
Perpetual preferred stock
Debt Securities, Available-for-sale [Line Items]
Total equity securities	$ 62.7	$ 82

Investments - Net Investment In

Investments - Net Investment Income (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net Investment Income [Line Items]
Gross investment income	$ 52.3	$ 51.3
External investment expense	(0.4)	(0.2)
Net investment income	51.9	51.1
Total fixed maturity securities
Net Investment Income [Line Items]
Gross investment income	45.6	43.6
Equity securities
Net Investment Income [Line Items]
Gross investment income	1	2.5
Mortgage loans
Net Investment Income [Line Items]
Gross investment income	5.4	3.7
Policy loans
Net Investment Income [Line Items]
Gross investment income	0.3	0.3
Other invested assets
Net Investment Income [Line Items]
Gross investment income	$ 0	$ 1.2

Investments - Net Realized Gain

Investments - Net Realized Gain (Loss) on Investments (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Investments, Debt and Equity Securities [Abstract]
Realized gains on fixed maturity securities	$ 3.7	$ 0.8
Realized losses on fixed maturity securities	(0.6)	(1.7)
Realized gains on equity securities	0	0.1
Realized losses on equity securities	0	(0.9)
Realized gains on mortgage loans	0.1	0
Net unrealized gains (losses) on equity securities	(21.7)	7.4
Net unrealized gains (losses) on derivative instruments	0.2	(0.2)
Impairment loss	(0.8)	0
Net realized and unrealized gains (losses)	$ (19.1)	$ 5.5

Fair Value of Financial Instr_3

Fair Value of Financial Instruments - Summary of Assets and Liabilities Measured At Fair Value on Recurring Basis (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Assets
Fixed maturity securities, available-for-sale at fair value	$ 3,753	$ 4,028.9
Equity securities	72.4	92.5
Liabilities
Other	0.2
Total liabilities accounted for at fair value	4.4	7.8	$ 8.8	$ 11.9
U.S. Government and government agencies
Assets
Fixed maturity securities, available-for-sale at fair value	8.8	7.7
States, municipalities and political subdivisions
Assets
Fixed maturity securities, available-for-sale at fair value	427.4	440.1
Residential mortgage-backed securities
Assets
Fixed maturity securities, available-for-sale at fair value	61	66.9
Commercial mortgage-backed securities
Assets
Fixed maturity securities, available-for-sale at fair value	99.7	109.4
Asset-backed securities
Assets
Fixed maturity securities, available-for-sale at fair value	541.2	577.8
Corporate and other
Assets
Fixed maturity securities, available-for-sale at fair value	2,614.9	2,827
Perpetual preferred stocks
Assets
Equity securities	62.7	82
Common Stock
Assets
Equity securities	9.7	10.5
Recurring
Assets
Fixed maturity securities, available-for-sale at fair value	3,753	4,028.9
Equity securities	72.4	92.5
Total assets accounted for at fair value	3,825.4	4,121.4
Liabilities
Embedded derivative	0.7	3
Other	3.7	4.8
Total liabilities accounted for at fair value	4.4	7.8
Recurring | Level 1
Assets
Fixed maturity securities, available-for-sale at fair value	37.4	51.3
Equity securities	10.7	12.1
Total assets accounted for at fair value	48.1	63.4
Liabilities
Embedded derivative	0	0
Other	0	0
Total liabilities accounted for at fair value	0	0
Recurring | Level 2
Assets
Fixed maturity securities, available-for-sale at fair value	3,205.2	3,272.2
Equity securities	20.1	22.8
Total assets accounted for at fair value	3,225.3	3,295
Liabilities
Embedded derivative	0	0
Other	0	0
Total liabilities accounted for at fair value	0	0
Recurring | Level 3
Assets
Fixed maturity securities, available-for-sale at fair value	510.4	705.4
Equity securities	41.6	57.6
Total assets accounted for at fair value	552	763
Liabilities
Embedded derivative	0.7	3
Other	3.7	4.8
Total liabilities accounted for at fair value	4.4	7.8
Recurring | U.S. Government and government agencies
Assets
Fixed maturity securities, available-for-sale at fair value	8.8	7.7
Recurring | U.S. Government and government agencies | Level 1
Assets
Fixed maturity securities, available-for-sale at fair value	5.5	4.8
Recurring | U.S. Government and government agencies | Level 2
Assets
Fixed maturity securities, available-for-sale at fair value	3.3	2.9
Recurring | U.S. Government and government agencies | Level 3
Assets
Fixed maturity securities, available-for-sale at fair value	0	0
Recurring | States, municipalities and political subdivisions
Assets
Fixed maturity securities, available-for-sale at fair value	427.4	440.1
Recurring | States, municipalities and political subdivisions | Level 1
Assets
Fixed maturity securities, available-for-sale at fair value	0	0
Recurring | States, municipalities and political subdivisions | Level 2
Assets
Fixed maturity securities, available-for-sale at fair value	418.4	440.1
Recurring | States, municipalities and political subdivisions | Level 3
Assets
Fixed maturity securities, available-for-sale at fair value	9	0
Recurring | Residential mortgage-backed securities
Assets
Fixed maturity securities, available-for-sale at fair value	61	66.9
Recurring | Residential mortgage-backed securities | Level 1
Assets
Fixed maturity securities, available-for-sale at fair value	0	0
Recurring | Residential mortgage-backed securities | Level 2
Assets
Fixed maturity securities, available-for-sale at fair value	48	57.7
Recurring | Residential mortgage-backed securities | Level 3
Assets
Fixed maturity securities, available-for-sale at fair value	13	9.2
Recurring | Commercial mortgage-backed securities
Assets
Fixed maturity securities, available-for-sale at fair value	99.7	109.4
Recurring | Commercial mortgage-backed securities | Level 1
Assets
Fixed maturity securities, available-for-sale at fair value	0	0
Recurring | Commercial mortgage-backed securities | Level 2
Assets
Fixed maturity securities, available-for-sale at fair value	65.5	74.8
Recurring | Commercial mortgage-backed securities | Level 3
Assets
Fixed maturity securities, available-for-sale at fair value	34.2	34.6
Recurring | Asset-backed securities
Assets
Fixed maturity securities, available-for-sale at fair value	541.2	577.8
Recurring | Asset-backed securities | Level 1
Assets
Fixed maturity securities, available-for-sale at fair value	0	0
Recurring | Asset-backed securities | Level 2
Assets
Fixed maturity securities, available-for-sale at fair value	255.7	27.2
Recurring | Asset-backed securities | Level 3
Assets
Fixed maturity securities, available-for-sale at fair value	285.5	550.6
Recurring | Corporate and other
Assets
Fixed maturity securities, available-for-sale at fair value	2,614.9	2,827
Recurring | Corporate and other | Level 1
Assets
Fixed maturity securities, available-for-sale at fair value	31.9	46.5
Recurring | Corporate and other | Level 2
Assets
Fixed maturity securities, available-for-sale at fair value	2,414.3	2,669.5
Recurring | Corporate and other | Level 3
Assets
Fixed maturity securities, available-for-sale at fair value	168.7	111
Recurring | Perpetual preferred stocks
Assets
Equity securities	62.7	82
Recurring | Perpetual preferred stocks | Level 1
Assets
Equity securities	4.4	5
Recurring | Perpetual preferred stocks | Level 2
Assets
Equity securities	20.1	22.8
Recurring | Perpetual preferred stocks | Level 3
Assets
Equity securities	38.2	54.2
Recurring | Common Stock
Assets
Equity securities	9.7	10.5
Recurring | Common Stock | Level 1
Assets
Equity securities	6.3	7.1
Recurring | Common Stock | Level 2
Assets
Equity securities	0	0
Recurring | Common Stock | Level 3
Assets
Equity securities	$ 3.4	$ 3.4

Fair Value of Financial Instr_4

Fair Value of Financial Instruments - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Transfer to Level 3	$ 62.5	$ 110.6
Transfer out of level 3	$ 182	$ 5.7
Level 3 | Assets, Total
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Percent of total assets (less than)	1.00%
Structured securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Transfer to Level 3	$ 119.5
Transfer out of level 3	$ 104.9

Fair Value of Financial Instr_5

Fair Value of Financial Instruments - Schedule of Changes in Balances of Level 3 Financial Assets (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Changes in balances of Level 3 financial assets
Balance at beginning of period	$ 763	$ 701.6
Net earnings (loss)	0	0
Other comp. income (loss)	(130.5)	23.5
Purchases and issuances	92.7	55.6
Sales and settlements	(53.7)	(78.9)
Transfer to Level 3	62.5	110.6
Transfer out of Level 3	(182)	(5.7)
Balance at end of period	552	806.7
Changes in balances of Level 3 financial liabilities
Balance at beginning of period	7.8	11.9
Net earnings (loss)	(3.4)	(3.1)
Other comp. income (loss)	0	0
Purchases and issuances	0	0
Sales and settlements	0	0
Transfer to Level 3	0	0
Transfer out of Level 3	0	0
Balance at end of period	4.4	8.8
Structured securities
Changes in balances of Level 3 financial assets
Transfer to Level 3	119.5
Transfer out of Level 3	(104.9)
Total fixed maturity securities
Changes in balances of Level 3 financial assets
Balance at beginning of period	705.4	640.4
Net earnings (loss)	0	0
Other comp. income (loss)	(114.5)	23.5
Purchases and issuances	92.7	55.6
Sales and settlements	(53.7)	(78.9)
Transfer to Level 3	62.5	110.6
Transfer out of Level 3	(182)	(5.7)
Balance at end of period	510.4	745.5
States, municipalities and political subdivisions
Changes in balances of Level 3 financial assets
Balance at beginning of period	0
Net earnings (loss)	0.1
Other comp. income (loss)	(1)
Purchases and issuances	0
Sales and settlements	0
Transfer to Level 3	9.9
Transfer out of Level 3	0
Balance at end of period	9
Residential mortgage-backed securities
Changes in balances of Level 3 financial assets
Balance at beginning of period	9.2	19
Net earnings (loss)	0	0
Other comp. income (loss)	(1.9)	0.1
Purchases and issuances	0	0
Sales and settlements	(0.7)	(0.3)
Transfer to Level 3	6.8	0
Transfer out of Level 3	(0.4)	(5.7)
Balance at end of period	13	13.1
Commercial mortgage-backed securities
Changes in balances of Level 3 financial assets
Balance at beginning of period	34.6	58.2
Net earnings (loss)	0	0
Other comp. income (loss)	(5.3)	1.6
Purchases and issuances	0	2.4
Sales and settlements	(0.2)	(0.4)
Transfer to Level 3	5.1	0
Transfer out of Level 3	0	0
Balance at end of period	34.2	61.8
Asset-backed securities
Changes in balances of Level 3 financial assets
Balance at beginning of period	550.6	478.2
Net earnings (loss)	0	0
Other comp. income (loss)	(93.3)	13.3
Purchases and issuances	60	48.6
Sales and settlements	(51.5)	(73.6)
Transfer to Level 3	0	5.6
Transfer out of Level 3	(180.3)	0
Balance at end of period	285.5	472.1
Corporate and other
Changes in balances of Level 3 financial assets
Balance at beginning of period	111	85
Net earnings (loss)	(0.1)	0
Other comp. income (loss)	(13)	8.5
Purchases and issuances	32.7	4.6
Sales and settlements	(1.3)	(4.6)
Transfer to Level 3	40.7	105
Transfer out of Level 3	(1.3)	0
Balance at end of period	168.7	198.5
Equity securities
Changes in balances of Level 3 financial assets
Balance at beginning of period	57.6	61.2
Net earnings (loss)	0	0
Other comp. income (loss)	(16)	0
Purchases and issuances	0	0
Sales and settlements	0	0
Transfer to Level 3	0	0
Transfer out of Level 3	0	0
Balance at end of period	41.6	61.2
Common Stock
Changes in balances of Level 3 financial assets
Balance at beginning of period	3.4	5.9
Net earnings (loss)	0	0.2
Other comp. income (loss)	0	0
Purchases and issuances	0	0
Sales and settlements	0	0
Transfer to Level 3	0	0
Transfer out of Level 3	0	0
Balance at end of period	3.4	6.1
Perpetual preferred stocks
Changes in balances of Level 3 financial assets
Balance at beginning of period	54.2	55.3
Net earnings (loss)	0	(0.2)
Other comp. income (loss)	(16)	0
Purchases and issuances	0	0
Sales and settlements	0	0
Transfer to Level 3	0	0
Transfer out of Level 3	0	0
Balance at end of period	38.2	55.1
Embedded derivatives
Changes in balances of Level 3 financial liabilities
Balance at beginning of period	3	8.4
Net earnings (loss)	(2.3)	(2.3)
Other comp. income (loss)	0	0
Purchases and issuances	0	0
Sales and settlements	0	0
Transfer to Level 3	0	0
Transfer out of Level 3	0	0
Balance at end of period	0.7	6.1
Other
Changes in balances of Level 3 financial liabilities
Balance at beginning of period	4.8	3.5
Net earnings (loss)	(1.1)	(0.8)
Other comp. income (loss)	0	0
Purchases and issuances	0	0
Sales and settlements	0	0
Transfer to Level 3	0	0
Transfer out of Level 3	0	0
Balance at end of period	$ 3.7	$ 2.7

Fair Value of Financial Instr_6

Fair Value of Financial Instruments - Schedule of Financial Instruments Measured on Not Measured at Fair Value (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Assets
Mortgage loans	$ 142.2	$ 183.5
Policy loans	18.9	19.1
Other invested assets	70.3	68.1
Nonrecurring | Level 1
Assets
Mortgage loans	0	0
Policy loans	0	0
Total assets accounted for at fair value	0	0
Liabilities
Annuity benefits accumulated	0	0
Long-term obligations	0	0
Financial and Nonfinancial Liabilities, Fair Value Disclosure	0	0
Nonrecurring | Level 2
Assets
Mortgage loans	0	0
Policy loans	18.9	19.1
Total assets accounted for at fair value	18.9	19.1
Liabilities
Annuity benefits accumulated	0	0
Long-term obligations	675.9	768.9
Financial and Nonfinancial Liabilities, Fair Value Disclosure	675.9	768.9
Nonrecurring | Level 3
Assets
Mortgage loans	142.3	183.5
Policy loans	0	0
Total assets accounted for at fair value	142.3	183.5
Liabilities
Annuity benefits accumulated	229.8	231
Long-term obligations	0	0
Financial and Nonfinancial Liabilities, Fair Value Disclosure	229.8	231
Nonrecurring | Carrying Value
Assets
Mortgage loans	142.2	183.5
Policy loans	18.9	19.1
Total assets accounted for at fair value	161.1	202.6
Liabilities
Annuity benefits accumulated	232.5	233.9
Long-term obligations	684.6	772
Financial and Nonfinancial Liabilities, Fair Value Disclosure	917.1	1,005.9
Nonrecurring | Estimated Fair Value
Assets
Mortgage loans	142.3	183.5
Policy loans	18.9	19.1
Total assets accounted for at fair value	161.2	202.6
Liabilities
Annuity benefits accumulated	229.8	231
Long-term obligations	675.9	768.9
Financial and Nonfinancial Liabilities, Fair Value Disclosure	$ 905.7	$ 999.9

Accounts Receivable, net (Detai

Accounts Receivable, net (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Receivables [Abstract]
Contracts in progress	$ 170.7	$ 177.8
Trade receivables	81.9	53.9
Unbilled retentions	61.2	60.6
Other receivables	21.1	21
Allowance for doubtful accounts	(1.6)	(1.5)
Total accounts receivable, net	$ 333.3	$ 311.8

Recoverable from Reinsurers (De

Recoverable from Reinsurers (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Ceded Credit Risk [Line Items]
Amount	$ 958.4	$ 953.7
Percentage of Total, Reinsurance recoverable | Reinsurer Concentration Risk
Ceded Credit Risk [Line Items]
Percentage of total	100.00%	100.00%
Hannover Life Reassurance Company of America | A+
Ceded Credit Risk [Line Items]
Amount	$ 320.6	$ 323.3
Hannover Life Reassurance Company of America | A+ | Percentage of Total, Reinsurance recoverable | Reinsurer Concentration Risk
Ceded Credit Risk [Line Items]
Percentage of total	33.50%	33.90%
Munich American Reassurance Company | A+
Ceded Credit Risk [Line Items]
Amount	$ 354.3	$ 347.6
Munich American Reassurance Company | A+ | Percentage of Total, Reinsurance recoverable | Reinsurer Concentration Risk
Ceded Credit Risk [Line Items]
Percentage of total	37.00%	36.40%
ManhattanLife Assurance Company of America | B+
Ceded Credit Risk [Line Items]
Amount	$ 46.2	$ 47
ManhattanLife Assurance Company of America | B+ | Percentage of Total, Reinsurance recoverable | Reinsurer Concentration Risk
Ceded Credit Risk [Line Items]
Percentage of total	4.80%	4.90%
Loyal American Life Insurance Company | A
Ceded Credit Risk [Line Items]
Amount	$ 148.6	$ 147.5
Loyal American Life Insurance Company | A | Percentage of Total, Reinsurance recoverable | Reinsurer Concentration Risk
Ceded Credit Risk [Line Items]
Percentage of total	15.50%	15.50%
Great American Life Insurance Company | A
Ceded Credit Risk [Line Items]
Amount	$ 57.2	$ 56.2
Great American Life Insurance Company | A | Percentage of Total, Reinsurance recoverable | Reinsurer Concentration Risk
Ceded Credit Risk [Line Items]
Percentage of total	6.00%	5.90%
Other
Ceded Credit Risk [Line Items]
Amount	$ 31.5	$ 32.1
Other | Percentage of Total, Reinsurance recoverable | Reinsurer Concentration Risk
Ceded Credit Risk [Line Items]
Percentage of total	3.20%	3.40%

Property, Plant, and Equipmen_3

Property, Plant, and Equipment, net - Summary of Property, Plant, and Equipment, net (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 303.7	$ 299.7
Less: Accumulated depreciation	80.3	76
Property, plant and equipment, net	223.4	223.7
Equipment, furniture and fixtures, and software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	215.5	212.8
Building and leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	41	40.1
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	36.5	36.8
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	5.6	4.8
Plant and transportation equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 5.1	$ 5.2

Property, Plant, and Equipmen_4

Property, Plant, and Equipment, net - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 6.8	$ 5.9
Depreciation expense with cost of revenue	$ 2.3	$ 2.2

Goodwill and Intangibles, net -

Goodwill and Intangibles, net - Changes in the Carrying Amount of Goodwill (Details) $ in Millions	3 Months Ended
	Mar. 31, 2020USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 112.5
Translation	(0.5)
Ending balance	112
Construction
Goodwill [Roll Forward]
Beginning balance	89
Translation	(0.5)
Ending balance	88.5
Energy
Goodwill [Roll Forward]
Beginning balance	2.1
Translation	0
Ending balance	2.1
Broadcasting
Goodwill [Roll Forward]
Beginning balance	21.4
Translation	0
Ending balance	$ 21.4

Goodwill and Intangibles, net_2

Goodwill and Intangibles, net - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Accumulated other comprehensive income (loss)	$ (84.6)		$ 168.7
Amortization expense	2	$ 3.1
Negative amortization	24.3		$ 22.5
Net loss	$ (101)	$ (6.3)

Goodwill and Intangibles, net_3

Goodwill and Intangibles, net - Indefinite-lived Intangible Assets (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Acquired Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 139.1	$ 138.7
FCC licenses
Acquired Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	136.6	136.2
State licenses
Acquired Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 2.5	$ 2.5

Goodwill and Intangibles, net_4

Goodwill and Intangibles, net - Definite Lived Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 105.3	$ 105.5
Accumulated Amortization	(24.3)	(22.5)
Net	$ 81	83
Trade names
Finite-Lived Intangible Assets [Line Items]
Weighted-Average Original Useful Life	13 years
Gross Carrying Amount	$ 24.2	24.2
Accumulated Amortization	(7.1)	(6.6)
Net	$ 17.1	17.6
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted-Average Original Useful Life	10 years
Gross Carrying Amount	$ 48.3	48.6
Accumulated Amortization	(14.1)	(13.1)
Net	$ 34.2	35.5
Channel sharing arrangements
Finite-Lived Intangible Assets [Line Items]
Weighted-Average Original Useful Life	35 years
Gross Carrying Amount	$ 27.2	27.2
Accumulated Amortization	(1.1)	(0.9)
Net	$ 26.1	26.3
Other
Finite-Lived Intangible Assets [Line Items]
Weighted-Average Original Useful Life	7 years
Gross Carrying Amount	$ 5.6	5.5
Accumulated Amortization	(2)	(1.9)
Net	$ 3.6	$ 3.6

Goodwill and Intangibles, net_5

Goodwill and Intangibles, net - Estimated Amortization Expense (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
2020	$ 6
2021	7.8
2022	7.6
2023	7.5
2024	7
Thereafter	45.1
Net	$ 81	$ 83

Life, Accident and Health Res_3

Life, Accident and Health Reserves - By Product Line (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Liability for Claims and Claims Adjustment Expense [Line Items]
Total life, accident and health reserves	$ 4,593.9	$ 4,567.1
Long-term care insurance reserves
Liability for Claims and Claims Adjustment Expense [Line Items]
Total life, accident and health reserves	4,231	4,201.6
Traditional life insurance reserves
Liability for Claims and Claims Adjustment Expense [Line Items]
Total life, accident and health reserves	170.6	173.4
Other accident and health insurance reserves
Liability for Claims and Claims Adjustment Expense [Line Items]
Total life, accident and health reserves	$ 192.3	$ 192.1

Life, Accident and Health Res_4

Life, Accident and Health Reserves - Liability for Claims of Long-Term Care Insurance Reserves (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Beginning balance	$ 4,567.1
Paid related to insured events of:
Ending balance	4,593.9
Other Long Duration Insurance Product Line
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Beginning balance	761.3	$ 738.7
Less: recoverable from reinsurers	(131)	(136.4)
Beginning balance, net	630.3	602.3
Incurred related to insured events of:
Current year	68.9	62.4
Prior years	(13.3)	(36)
Total incurred	55.6	26.4
Paid related to insured events of:
Current year	(0.6)	(0.6)
Prior years	(42.8)	(36.4)
Total paid	(43.4)	(37)
Interest on liability for policy and contract claims	5.6	5.3
Ending balance, net	648.1	597
Add: recoverable from reinsurers	136.2	136.4
Ending balance	$ 784.3	$ 733.4

Accounts Payable and Other Cu_3

Accounts Payable and Other Current Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Payables and Accruals [Abstract]
Accounts payable	$ 147.4	$ 134.6
Accrued expenses and other current liabilities	51.3	75.2
Accrued interconnection costs	69.6	43.5
Accrued payroll and employee benefits	35.1	39.6
Accrued interest	24.7	11.3
Accrued income taxes	6.3	2
Total accounts payable and other current liabilities	$ 334.4	$ 306.2

Debt Obligations - Schedule of

Debt Obligations - Schedule of Debt (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2020	Apr. 16, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Total lease liability balance	$ 1.4	$ 1.4		$ 1.7
Total aggregate finance lease and debt payments	711.7	711.7		805
Issuance discount, net and deferred financing costs	(25.7)	(25.7)		(31.4)
Total debt obligations	686	686		773.6
11.50% Senior Secured Notes, due 2021
Debt Instrument [Line Items]
Outstanding debt	$ 76.9	$ 76.9
Interest rate (as a percent)	11.50%	11.50%
LIBOR | DBM Global Credit Facilities | LIBOR plus 5.85% Note, due 2023
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)		5.85%
LIBOR | DBM Global Credit Facilities | LIBOR plus 1.50% Line of Credit | Real Estate Term Advance | Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)		150.00%
Construction | LIBOR | LIBOR plus 5.85% Note, due 2023 | Real Estate Term Advance
Debt Instrument [Line Items]
Outstanding debt	$ 75.6	$ 75.6		77
Construction | LIBOR | LIBOR plus 1.50% Line of Credit | Real Estate Term Advance
Debt Instrument [Line Items]
Outstanding debt	49.7	49.7		48.9
Construction | LIBOR | Obligations under finance leases | Real Estate Term Advance
Debt Instrument [Line Items]
Outstanding debt	0.2	0.2		0.2
Energy | Obligations under finance leases
Debt Instrument [Line Items]
Other, various maturity dates	3	3		2.4
Energy | LIBOR plus 3.0% Term Loan due in 2023
Debt Instrument [Line Items]
Outstanding debt	26.3	26.3		27.1
Energy | 5.00% Term Loan due in 2022
Debt Instrument [Line Items]
Outstanding debt	$ 10.9	$ 10.9		11.2
Interest rate (as a percent)	5.00%	5.00%
Energy | 4.50% Note due in 2022
Debt Instrument [Line Items]
Outstanding debt	$ 9.9	$ 9.9		10.2
Interest rate (as a percent)	4.50%	4.50%
Energy | LIBOR | American Natural Gas [Member] | LIBOR plus 3.0% Term Loan due in 2023
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)		3.00%
Broadcasting
Debt Instrument [Line Items]
Total lease liability balance	$ 1.2	$ 1.2		1.4
Broadcasting | 10.50% Note due 2020
Debt Instrument [Line Items]
Outstanding debt	$ 42.5	$ 42.5		42.5
Interest rate (as a percent)	10.50%	10.50%
Broadcasting | Other, various maturity dates
Debt Instrument [Line Items]
Outstanding debt	$ 5.1	$ 5.1		7.9
Broadcasting | Tranche A Senior Notes, Due October 2020
Debt Instrument [Line Items]
Outstanding debt	$ 39.3	$ 39.3		36.2
Broadcasting | Senior Notes Due October 2019, 8.5%
Debt Instrument [Line Items]
Interest rate (as a percent)	8.50%	8.50%
Non-Operating Corporate | 11.50% Senior Secured Notes, due 2021
Debt Instrument [Line Items]
Outstanding debt	$ 393	$ 393		470
Interest rate (as a percent)	11.50%	11.50%
Non-Operating Corporate | 7.50% Convertible Senior Notes, due 2022
Debt Instrument [Line Items]
Outstanding debt	$ 55	$ 55		55
Interest rate (as a percent)	7.50%	7.50%
Non-Operating Corporate | LIBOR plus 6.75% Line of Credit(1)
Debt Instrument [Line Items]
Outstanding debt	$ 0	$ 0		$ 15
Basis spread on variable rate (as a percent)	6.75%	6.75%
Non-Operating Corporate | LIBOR plus 6.75% Line of Credit(1) | Subsequent Event
Debt Instrument [Line Items]
Outstanding debt			$ 10

Debt Obligations - Schedule o_2

Debt Obligations - Schedule of Aggregate Debt Maturities (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Finance Leases
2020	$ 1	$ 1
2021	0.5	0.7
2022	0	0.1
2023	0	0
2024	0	0
Thereafter	0	0
Total future lease payments	1.5	1.8
Finance Lease, Liability, Undiscounted Excess Amount	(0.1)	(0.1)
Total lease liability balance	1.4	1.7
Debt
2020	178
2021	459
2022	76.7
2023	93.8
2024	11.3
Thereafter	7.5
Total minimum principal & interest payments	826.3
Less: Amount representing interest	(116)
Total aggregate finance lease and debt payments	710.3
Total
2020	179
2021	459.5
2022	76.7
2023	93.8
2024	11.3
Thereafter	7.5
Total minimum principal & interest payments	827.8
Less: Amount representing interest	(116.1)
Total aggregate finance lease and debt payments	$ 711.7	$ 805

Debt Obligations - Narrative (D

Debt Obligations - Narrative (Details) - USD ($)	1 Months Ended	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2020	Mar. 31, 2019	Mar. 13, 2020	Feb. 28, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Gain (loss) on extinguishment of debt		$ 5,800,000	$ 0
Less: Preferred dividends, deemed dividends and repurchase gains		400,000	(1,200,000)
Interest cost relating to amortization of discount		$ 2,000,000	$ 1,600,000
Minimum
Debt Instrument [Line Items]
Capital leases rate (as a percent)		2.00%
Maximum
Debt Instrument [Line Items]
Capital leases rate (as a percent)		11.50%
11.50% Senior Secured Notes, due 2021
Debt Instrument [Line Items]
Interest rate (as a percent)	11.50%	11.50%
Outstanding debt	$ 76,900,000	$ 76,900,000
Gain (loss) on extinguishment of debt	$ (5,400,000)
Convertible notes, conversion ratio	1.045
Secured Indenture
Debt Instrument [Line Items]
Interest cost relating to amortization of discount		100,000
Revolving Credit Agreement
Debt Instrument [Line Items]
Face amount	$ 15,000,000	$ 15,000,000		$ 15,000,000	$ 15,000,000
Gain (loss) on extinguishment of debt	$ (400,000)
Energy | 5.00% Term Loan due in 2022
Debt Instrument [Line Items]
Interest rate (as a percent)	5.00%	5.00%
Outstanding debt	$ 10,900,000	$ 10,900,000				$ 11,200,000
Energy | 4.50% Note due in 2022
Debt Instrument [Line Items]
Interest rate (as a percent)	4.50%	4.50%
Outstanding debt	$ 9,900,000	$ 9,900,000				10,200,000
Energy | LIBOR plus 3.0% Term Loan due in 2023
Debt Instrument [Line Items]
Outstanding debt	26,300,000	$ 26,300,000				27,100,000
Energy | LIBOR plus 3.0% Term Loan due in 2023 | LIBOR | ANG
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)		3.00%
Broadcasting | Tranche A Senior Notes, Due October 2020
Debt Instrument [Line Items]
Face amount					$ 39,300,000
Outstanding debt	$ 39,300,000	$ 39,300,000				36,200,000
Broadcasting | 10.50% Note due 2020
Debt Instrument [Line Items]
Interest rate (as a percent)	10.50%	10.50%
Outstanding debt	$ 42,500,000	$ 42,500,000				42,500,000
Non-Operating Corporate | 11.50% Senior Secured Notes, due 2021
Debt Instrument [Line Items]
Interest rate (as a percent)	11.50%	11.50%
Outstanding debt	$ 393,000,000	$ 393,000,000				470,000,000
Non-Operating Corporate | 7.50% Convertible Senior Notes, due 2022
Debt Instrument [Line Items]
Interest rate (as a percent)	7.50%	7.50%
Outstanding debt	$ 55,000,000	$ 55,000,000				55,000,000
Non-Operating Corporate | LIBOR plus 6.75% Line of Credit(1)
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	6.75%	6.75%
Outstanding debt	$ 0	$ 0				$ 15,000,000

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ (12.6)	$ 4

Commitments and Contingencies -

Commitments and Contingencies - Purchase Obligations and Non-Cancellable Operating Leases (Details) $ in Millions	Mar. 31, 2020USD ($)
Purchase Obligations
2020	$ 86.3
2021	3.3
2022	0.2
2023	0.2
2024	0.2
Thereafter	0
Total obligations	$ 90.2

Commitments and Contingencies_2

Commitments and Contingencies - Narrative (Details) - USD ($)	May 08, 2020	Mar. 31, 2020	Dec. 31, 2019	Nov. 06, 2014
Loss Contingencies [Line Items]
Common stock, shares issued (in shares)		47,571,416	46,810,676
DBMG Class Action | Pending Litigation [Member] | Subsequent Event
Loss Contingencies [Line Items]
Settlement (in usd per share)	$ 35.95
Damages sought (shares)	568,550
Damages sought	$ 20,400,000
Settlement, contribution	1,000,000
Settlement, contribution from other party	$ 8,100,000
Litigation, ownership percentage	7.52%
Litigation settlement, contribution (in usd per share)	$ 3.51
DBMG Class Action | Pending Litigation [Member] | Subsequent Event | Insurance [Member]
Loss Contingencies [Line Items]
Settlement, contribution	$ 12,400,000
DBMG Class Action Payment One | Pending Litigation [Member] | Subsequent Event
Loss Contingencies [Line Items]
Settlement (in usd per share)	$ 2.51
Damages sought (shares)	289,902
Damages sought	$ 700,000
DBMG Class Action Payment Two | Pending Litigation [Member] | Subsequent Event
Loss Contingencies [Line Items]
Settlement (in usd per share)	$ 1
Damages sought	$ 289,902
DBMG
Loss Contingencies [Line Items]
Common stock, shares issued (in shares)				721,000

Commitments and Contingencies_3

Commitments and Contingencies - Leases (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Operating Lease [Abstract]
2020		$ 15.1
2021		13.4
2022		10.9
2023		8.8
2024		6.6
Thereafter		8.2
Total future lease payments		63
Less: Present values		(9.3)
Total lease liability balance		53.7
Finance Lease [Abstract]
2020	$ 1	1
2021	0.5	0.7
2022	0	0.1
2023	0	0
2024	0	0
Thereafter	0	0
Total future lease payments	1.5	1.8
Less: Present values	(0.1)	(0.1)
Total lease liability balance	$ 1.4	$ 1.7

Share-based Compensation - Narr

Share-based Compensation - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted (in shares)	0	0
Share-based compensation expense	$ 1,500,000	$ 1,300,000
Intrinsic value of options outstanding	$ 0
Average remaining life of option outstanding	5 years 3 days
Intrinsic value of exercisable options	$ 0
Average remaining life of exercisable options	4 years 10 months 24 days
Unvested shares expected to vest (in shares)	182,008
Weighted average remaining life	7 years 4 months 9 days
Weighted average exercise price (in usd per share)	$ 5.45
Intrinsic value	$ 0
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense	$ 3,700,000
Unrecognized compensation expense, period for recognition	1 year 1 month 6 days
Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense	$ 500,000
Unrecognized compensation expense, period for recognition	11 months 15 days

Share-based Compensation - Summ

Share-based Compensation - Summary of Company's Restricted Stock Activity (Details) - Restricted Stock	3 Months Ended
	Mar. 31, 2020$ / sharesshares
Shares
Unvested at beginning of period (in shares) | shares	2,213,775
Granted (in shares) | shares	0
Vested (in shares) | shares	(1,063,434)
Forfeited (in shares) | shares	(68,629)
Unvested at end of period (in shares) | shares	1,081,712
Weighted Average Grant Date Fair Value
Unvested at beginning of period (in usd per share) | $ / shares	$ 5.12
Granted (in usd per share) | $ / shares	0
Vested (in usd per share) | $ / shares	5.27
Forfeited (in usd per share) | $ / shares	5.10
Unvested at end of period (in usd per share) | $ / shares	$ 4.98

Share-based Compensation - Su_2

Share-based Compensation - Summary of Company's Stock Option Activity (Details) - $ / shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Shares
Outstanding at beginning of period (in shares)	7,067,592
Granted (in shares)	0	0
Exercised (in shares)	0
Forfeited (in shares)	0
Expired (in shares)	0
Outstanding at end of period (in shares)	7,067,592
Eligible for exercise (in shares)	6,885,584
Weighted Average Exercise Price
Outstanding at beginning of period (in usd per share)	$ 6.52
Granted (in usd per share)	0
Exercised (in usd per share)	0
Forfeited (in usd per share)	0
Expired (in usd per share)	0
Outstanding at end of period (in usd per share)	6.52
Eligible for exercise (in usd per share)	$ 6.55

Equity - Preferred Stock (Detai

Equity - Preferred Stock (Details) - $ / shares	Mar. 31, 2020	Dec. 31, 2019
Class of Stock [Line Items]
Par value (in dollars per share)	$ 0.001	$ 0.001
Shares authorized (in shares)	20,000,000	20,000,000
Series A shares issued and outstanding
Class of Stock [Line Items]
Shares issued (in shares)	6,375	6,375
Shares outstanding (in shares)	6,375	6,375
Series A-2 shares issued and outstanding
Class of Stock [Line Items]
Shares issued (in shares)	4,000	4,000
Shares outstanding (in shares)	4,000	4,000

Equity - Narrative (Details)

Equity - Narrative (Details) - USD ($)	Jan. 11, 2019	Aug. 02, 2016	Mar. 31, 2020	Dec. 31, 2019
Class of Warrant or Right [Line Items]
Additional share consideration valued at			$ 200,000
Series A shares issued and outstanding
Class of Warrant or Right [Line Items]
Shares issued (in shares)			6,375	6,375
CGI | Common Stock
Class of Warrant or Right [Line Items]
Conversion of stock, number of shares (in shares)	1,426,534
CGI | Series A-2 Preferred Stock
Class of Warrant or Right [Line Items]
Issuance and sale of common stock (in shares)	10,000
Issuance of common stock	$ 8,300,000
Stock issued during period, stock dividend value	$ 1,700,000
Corrib Master Fund, Ltd. | Series A shares issued and outstanding
Class of Warrant or Right [Line Items]
Conversion of stock, number of shares (in shares)			8,752
Issuance and sale of common stock (in shares)		1,000
Luxor Capital Partners, LP | Series A shares issued and outstanding
Class of Warrant or Right [Line Items]
Conversion of stock, number of shares (in shares)			77,794
Luxor Capital Partners, LP | Series A-1 shares issued and outstanding
Class of Warrant or Right [Line Items]
Issuance and sale of common stock (in shares)		9,000
Corrib Master Fund, Ltd. and Luxor Capital Partners, LP
Class of Warrant or Right [Line Items]
Percent of accrued value			1.875%

Equity - Summary of Cash Divide

Equity - Summary of Cash Dividends (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Equity [Abstract]
Total Dividend	$ 0.2	$ 0.2

Related Parties - Narrative (De

Related Parties - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Related Party Transaction [Line Items]
Net revenue	$ 700,000	$ 2,000,000
Affiliated Entity | Harbinger Capital Partners
Related Party Transaction [Line Items]
Expenses under service agreement	700,000	1,000,000
Net revenue	0	100,000
Affiliated Entity | Triple Ring
Related Party Transaction [Line Items]
Expenses under service agreement	$ 700,000	$ 0

Related Parties - Components Of

Related Parties - Components Of Service Agreement's Net Expenses (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Related Party Transaction [Line Items]
Revenue from related parties	$ 0.7	$ 2
Harbinger Capital Partners | Affiliated Entity
Related Party Transaction [Line Items]
Expenses under service agreement	0.7	1
Revenue from related parties	0	0.1
Net related party activity	0.7	0.9
Harbinger Capital Partners | Affiliated Entity | Corporate
Related Party Transaction [Line Items]
Expenses under service agreement	0.5	0.8
Revenue from related parties	0	0.1
Net related party activity	0.5	0.7
Harbinger Capital Partners | Affiliated Entity | Operating Segments
Related Party Transaction [Line Items]
Expenses under service agreement	0.2	0.2
Revenue from related parties	0	0
Net related party activity	0.2	0.2
Harbinger Capital Partners | Office space | Affiliated Entity
Related Party Transaction [Line Items]
Expenses under service agreement	0.7	0.9
Harbinger Capital Partners | Office space | Affiliated Entity | Corporate
Related Party Transaction [Line Items]
Expenses under service agreement	0.5	0.7
Harbinger Capital Partners | Office space | Affiliated Entity | Operating Segments
Related Party Transaction [Line Items]
Expenses under service agreement	0.2	0.2
Harbinger Capital Partners | Administrative salaries and benefits | Affiliated Entity
Related Party Transaction [Line Items]
Expenses under service agreement	0	0.1
Revenue from related parties	0	0
Harbinger Capital Partners | Administrative salaries and benefits | Affiliated Entity | Corporate
Related Party Transaction [Line Items]
Expenses under service agreement	0	0.1
Revenue from related parties	0	0
Harbinger Capital Partners | Administrative salaries and benefits | Affiliated Entity | Operating Segments
Related Party Transaction [Line Items]
Expenses under service agreement	0	0
Revenue from related parties	0	0
Harbinger Capital Partners | Other shared overhead | Affiliated Entity
Related Party Transaction [Line Items]
Expenses under service agreement	0	0
Revenue from related parties	0	0.1
Harbinger Capital Partners | Other shared overhead | Affiliated Entity | Corporate
Related Party Transaction [Line Items]
Expenses under service agreement	0	0
Revenue from related parties	0	0.1
Harbinger Capital Partners | Other shared overhead | Affiliated Entity | Operating Segments
Related Party Transaction [Line Items]
Expenses under service agreement	0	0
Revenue from related parties	$ 0	$ 0

Related Parties - Summary of Ba

Related Parties - Summary of Balance Outstanding of Related Parties (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Related Party Transactions [Abstract]
Net revenue	$ 0.7	$ 2
Operating expenses	0	0.6
Interest expense	0.1	$ 0.3
Accounts receivable	0		$ 1.2
Debt obligations	0		22.5
Accounts payable	0		0.1
Dividends	$ 0		$ 4.5

Operating Segment and Related_3

Operating Segment and Related Information - Narrative (Details)	3 Months Ended
	Mar. 31, 2020segment
Segment Reporting [Abstract]
Number of reportable geographic segments	1
Number of reportable operating segments	7

Operating Segment and Related_4

Operating Segment and Related Information - Concentration Risk (Details)	3 Months Ended
	Mar. 31, 2019
Customer A | Sales Revenue, Net | Customer Concentration Risk | Telecommunications
Segment Reporting Information [Line Items]
Percentage of total	11.50%

Operating Segment and Related_5

Operating Segment and Related Information - Geographic and Operating Segments (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 444.8	$ 449
Income (loss) from operations	(26.8)	25.6
Interest expense	(21.3)	(18.8)
Loss from equity investees	2.5	5.9
Other income, net	2.8	3.4
(Loss) income from continuing operations before income taxes	(53.6)	4.3
Income tax benefit (expense)	12.6	(4)
Net loss	(101)	(6.3)
Net loss attributable to noncontrolling interest and redeemable noncontrolling interest	17.9	3.5
Net loss attributable to HC2 Holdings, Inc.	(83.1)	(2.8)
Less: Preferred dividends, deemed dividends and repurchase gains	0.4	(1.2)
Net loss attributable to common stock and participating preferred stockholders	(83.5)	(1.6)
Depreciation and Amortization	0.6	0.3
Capital Expenditures	6.1	3.3
Less: Loss from discontinued operations, net of tax	(60)	(6.6)
(Loss) income from continuing operations	(41)	0.3
Revenue	383.4	362.5
Loss on sale of subsidiary	39.3	0
Construction
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	176.5	192.1
Revenue	176.5	192.1
Energy
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	10.4	5.1
Revenue	8.7	4.8
Telecommunications
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	186.4	155.5
Revenue	186.4	155.5
Broadcasting
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	10.1	9.8
Revenue	10.1	9.8
Operating Segments | Construction
Revenues from External Customers and Long-Lived Assets [Line Items]
Income (loss) from operations	2.6	5.7
Depreciation and Amortization	2.6	3.9
Capital Expenditures	2.3	2.6
Revenue	176.5	192.1
Operating Segments | Energy
Revenues from External Customers and Long-Lived Assets [Line Items]
Income (loss) from operations	1.7	(0.4)
Depreciation and Amortization	2.1	1.4
Capital Expenditures	1	0.1
Revenue	10.4	5.1
Operating Segments | Telecommunications
Revenues from External Customers and Long-Lived Assets [Line Items]
Income (loss) from operations	0.1	0.6
Depreciation and Amortization	0.1	0.1
Revenue	186.4	155.5
Operating Segments | Insurance
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	63.8	88.8
Income (loss) from operations	(12.6)	34.4
Depreciation and Amortization	(5.9)	(6.5)
Capital Expenditures	0.1	0.2
Operating Segments | Life Science [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Income (loss) from operations	(3.2)	(1.8)
Operating Segments | Broadcasting
Revenues from External Customers and Long-Lived Assets [Line Items]
Income (loss) from operations	(2.9)	(3.3)
Depreciation and Amortization	1.7	1.4
Capital Expenditures	2.7	0.4
Revenue	10.1	9.8
Operating Segments | Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Income (loss) from operations	(1)	(0.1)
Corporate
Revenues from External Customers and Long-Lived Assets [Line Items]
Income (loss) from operations	(9.1)	(7.2)
Intersegment Eliminations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	(2.4)	(2.3)
Income (loss) from operations	$ (2.4)	$ (2.3)

Operating Segment and Related_6

Operating Segment and Related Information - Long-term investments, Property and Equipment and Assets (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Investments	$ 4,056.8	$ 4,392.1
Total Assets	6,339.1	6,958.3
Operating Segments | Construction
Revenues from External Customers and Long-Lived Assets [Line Items]
Investments	0.9	0.9
Total Assets	557.3	530.4
Operating Segments | Insurance
Revenues from External Customers and Long-Lived Assets [Line Items]
Investments	4,090	4,423
Total Assets	5,264.4	5,611.9
Operating Segments | Life Science [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Investments	21	22
Total Assets	24.8	28.4
Operating Segments | Broadcasting
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Assets	257.7	257.9
Operating Segments | Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Investments	42.9	43.1
Total Assets	44.2	366.3
Operating Segments | Energy
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Assets	144.1	142.8
Operating Segments | Telecommunications
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Assets	123.4	89.3
Corporate
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Assets	20.7	27.2
Intersegment Eliminations
Revenues from External Customers and Long-Lived Assets [Line Items]
Investments	(98)	(96.9)
Total Assets	$ (97.5)	$ (95.9)

Basic and Diluted Income Per _3

Basic and Diluted Income Per Common Share - Narrative (Details)	3 Months Ended
	Mar. 31, 2020shares
Earnings Per Share [Abstract]
Antidilutive securities (in shares)	0

Basic and Diluted Income Per _4

Basic and Diluted Income Per Common Share - Basic Income (Loss) Per Common Share to Diluted Income (Loss) Per Common Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Earnings Per Share [Abstract]
(Loss) income from continuing operations	$ (41)	$ 0.3
Net loss attributable to noncontrolling interest and redeemable noncontrolling interest	2.6	2.4
Net loss attributable to noncontrolling interest and redeemable noncontrolling interest	(38.4)	2.7
Less: Preferred dividends, deemed dividends and repurchase gains	0.4	(1.2)
(Loss) income from continuing operations attributable to HC2 common stockholders	(38.8)	3.9
Loss from discontinued operations	(60)	(6.6)
Net loss attributable to noncontrolling interest and redeemable noncontrolling interest	15.3	1.1
Loss from discontinued operations, net of tax and noncontrolling interest	(44.7)	(5.5)
Net loss attributable to common stock and participating preferred stockholders	$ (83.5)	$ (1.6)
Participating shares at end of period:
Weighted-average Common stock outstanding (in shares)	45.9	44.8
Unvested restricted stock (in shares)	0	0.4
Preferred stock (as-converted basis) (in shares)	0	2.2
Total (in shares)	45.9	47.4
Percentage of (loss) income allocated to:
Common stock	100.00%	94.50%
Unvested restricted stock	0.00%	0.80%
Preferred stock	0.00%	4.60%
Earnings allocable to common shares, diluted:
Effect of assumed shares under treasury stock method for stock options and restricted shares and if-converted method for convertible instruments	$ 0	$ (1.6)
Net (loss) income from continuing operations attributable to common stock, diluted	(38.8)	2.1
Net (loss) income from discontinued operations attributable to common stock, diluted	(44.7)	(5.2)
Net loss attributable to common stock and participating preferred stockholders, diluted	$ (83.5)	$ (3.1)
Denominator for basic and dilutive earnings per share:
Weighted-average Common stock outstanding (in shares)	45.9	44.8
Effect of assumed shares under treasury stock method for stock options and restricted shares and if-converted method for convertible instruments (in shares)	0	14.9
Diluted (in shares)	45.9	59.7
Net (loss) income from continuing operations attributable to common stock, basic	$ (38.8)	$ 3.7
Net loss from discontinued operations attributable to common stock, basic and diluted	(44.7)	(5.2)
Net loss attributable to common stock and participating preferred stockholders, basic and diluted	$ (83.5)	$ (1.5)
(Loss) income per share - continuing operations
Net (loss) income attributable to continuing operations - basic (in usd per share)	$ (0.85)	$ 0.08
Net (loss) income attributable to participating security holders - diluted (in dollars per share)	(0.85)	0.04
Loss per share - discontinued operations
Basic (in usd per share)	(0.97)	(0.12)
Diluted (in usd per share)	(0.97)	(0.09)
Loss per share - Net loss attributable to common stock and participating preferred stockholders
Basic (in usd per share)	(1.82)	(0.03)
Diluted (in usd per share)	$ (1.82)	$ (0.05)
Loss on sale of subsidiary	$ (39.3)	$ 0

Subsequent Events (Details)

Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Millions	May 04, 2020	Apr. 16, 2020	Mar. 31, 2020
R2 Dermatology, Inc.
Subsequent Event [Line Items]
Parents interest, controlling			64.00%
Subsequent Event
Subsequent Event [Line Items]
Dividends payable (in usd per share)	$ 3.89
Dividends receivable	$ 13.9
Proceeds from lines of credit		$ 10
Subsequent Event | Construction [Member]
Subsequent Event [Line Items]
Dividends	$ 15
Subsequent Event | R2 Dermatology, Inc.
Subsequent Event [Line Items]
Proceeds equity		$ 10
Amount of change		7.80%
Parents interest, controlling		56.10%
Subsequent Event | R2 Dermatology, Inc. | Huadong Medicine Company [Member]
Subsequent Event [Line Items]
Increase in investment		$ 30
Amount of equity		$ 90

Uncategorized Items - hchc-2020

Label	Element	Value
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ (5,000,000)	[1]
Temporary Equity [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	(100,000)	[1]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	(2,900,000)
Parent [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	(4,300,000)	[1]
Retained Earnings, Unappropriated [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	(4,300,000)	[1]
Noncontrolling Interest [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ (700,000)	[1]
[1]	See Note 2. Summary of Significant Accounting Policies for further information about adjustments resulting from the Company’s adoption of new accounting standards in 2019.