Capital leases interest rate.

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Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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The carrying amount of the equity component of convertible debt which may be settled in cash upon conversion.

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The price per share of the conversion feature embedded in the debt instrument.

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Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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Face (par) amount of debt instrument at time of issuance.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount, after accumulated amortization, of debt premium.

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Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Price of a single share of a number of saleable stocks of a company.

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Debt Obligations - Narrative (Details)				3 Months Ended
Debt Obligations - Narrative (Details)	Feb. 23, 2021 USD ($)	Feb. 01, 2021 USD ($) $ / shares	Jan. 15, 2021 USD ($)	Mar. 31, 2021 USD ($) $ / shares	Mar. 31, 2020 USD ($)
Debt Instrument [Line Items]
Repayments of long-term debt				$ 356,500,000	$ 99,900,000
Loss on extinguishment of debt				$ 10,800,000	$ 5,800,000
8.50% Senior Secured Notes, due 2026
Debt Instrument [Line Items]
Interest rate		100.00%
8.50% Senior Secured Notes, due 2026 \| Non-Operating Corporate
Debt Instrument [Line Items]
Repayments of long-term debt		$ 330,000,000.0
Interest rate		8.50%		8.50%
7.50% Convertible Senior Notes, due 2022 \| Non-Operating Corporate
Debt Instrument [Line Items]
Repayments of long-term debt		$ 55,000,000.0
Interest rate		7.50%		7.50%
Face amount		$ 51,800,000
Loss on extinguishment of debt		5,400,000
Amortization of (discount) premium on investments, net		5,300,000
Extinguishment of the bifurcated conversion option equity		7,700,000
11.50% Senior Secured Notes, due 2021 \| Non-Operating Corporate
Debt Instrument [Line Items]
Interest rate				11.50%
Loss on extinguishment of debt		4,500,000
7.50% Convertible Senior Notes, due 2026
Debt Instrument [Line Items]
Face amount		$ 12,300,000
Amortization of (discount) premium on investments, net				$ 0
Convertible notes, conversion ratio		0.2342971
Conversion price (in usd per share) \| $ / shares		$ 4.27
Long-term debt, gross				62,800,000
Unamortized premium				$ 12,000,000.0
Share price (in usd per share) \| $ / shares				$ 3.94
Interest cost relating to contractual interest coupon				$ 600,000
7.50% Convertible Senior Notes, due 2026 \| Non-Operating Corporate
Debt Instrument [Line Items]
Interest rate				7.50%
Amortization of (discount) premium on investments, net		$ 12,300,000
LIBOR plus 5.75% Line of Credit \| Non-Operating Corporate
Debt Instrument [Line Items]
Basis spread on variable rate	6.75%			5.75%
Revolving Credit Agreement \| Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Face amount	$ 20,000,000.0
Outstanding borrowings				$ 0
11.5% Senior Secured Notes \| Beyond6
Debt Instrument [Line Items]
Repayments of long-term debt			$ 27,900,000
Interest rate			11.50%
HC2 Broadcasting Holdings, Inc \| 7.50% Convertible Senior Notes, due 2026
Debt Instrument [Line Items]
Interest rate, effective percentage		3.16%
Debt issuance costs		$ 1,000,000.0
Minimum
Debt Instrument [Line Items]
Finance leases rate				2.00%
Minimum \| LIBOR plus 5.75% Line of Credit \| Non-Operating Corporate
Debt Instrument [Line Items]
Basis spread on variable rate	5.75%
Maximum
Debt Instrument [Line Items]
Finance leases rate				11.50%
Maximum \| LIBOR plus 5.75% Line of Credit \| Non-Operating Corporate
Debt Instrument [Line Items]
Basis spread on variable rate	6.75%