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

No definition available.

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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 of unamortized debt discount (premium) and debt issuance costs.

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- Definition

Present value of lessee's discounted obligation for lease payments from finance lease.

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- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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Amount of long-term debt and lease obligation, classified as noncurrent.

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Amount of long-term debt and lease obligation, including portion classified as current.

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Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt classified as current. Excludes lease obligation.

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Debt Obligations - Schedule of Debt (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Dec. 31, 2024	Dec. 31, 2021	Feb. 01, 2021
Debt Instrument [Line Items]
Obligations under finance leases	$ 0.2	$ 0.6
Total aggregate finance lease and debt payments	672.0	668.3
Unamortized issuance discount, issuance premium, and deferred financing costs	(8.6)	(5.5)
Less: current portion of debt obligations	(523.5)	(162.2)
Debt obligations, net of current portion	139.9	500.6
Infrastructure
Debt Instrument [Line Items]
Obligations under finance leases	0.2	0.6
Total aggregate finance lease and debt payments	147.2	144.7
Spectrum
Debt Instrument [Line Items]
Total aggregate finance lease and debt payments	69.7	69.7
Life Sciences
Debt Instrument [Line Items]
Total aggregate finance lease and debt payments		24.0
Non-Operating Corporate
Debt Instrument [Line Items]
Total aggregate finance lease and debt payments	429.9	429.9
8.50% Note due 2025 \| Spectrum
Debt Instrument [Line Items]
Outstanding debt	19.3	19.3
11.45% Notes due 2025 \| Spectrum
Debt Instrument [Line Items]
Outstanding debt	$ 50.4	50.4
20.00% Notes due 2025 \| Life Sciences
Debt Instrument [Line Items]
Interest rate	20.00%
8.50% Senior Secured Notes due 2026 \| Secured Debt \| Non-Operating Corporate
Debt Instrument [Line Items]
Interest rate	8.50%		8.50%	8.50%
Outstanding debt	$ 330.0	330.0
7.50% Convertible Senior Notes due 2026 \| Non-Operating Corporate
Debt Instrument [Line Items]
Interest rate	7.50%
Outstanding debt	$ 48.9	48.9
SOFR plus 5.75% Line of Credit due 2025 \| Non-Operating Corporate
Debt Instrument [Line Items]
Basis spread on variable rate	5.75%
Outstanding debt	$ 20.0	20.0
CGIC Unsecured Note due 2026 \| Non-Operating Corporate
Debt Instrument [Line Items]
Outstanding debt	$ 31.0	31.0
Revolving Credit Facility \| PRIME minus 1.00% Line of Credit due 2025 \| Line of Credit \| Infrastructure \| DBM Global Credit Facilities
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
Revolving Credit Facility \| 3.25% Term Loan due 2026 \| Term Loan \| Infrastructure \| DBM Global Credit Facilities
Debt Instrument [Line Items]
Interest rate	3.25%
Outstanding debt		74.6
Revolving Credit Facility \| PRIME minus 1.00% Term Loan due 2026 \| Line of Credit \| Infrastructure \| DBM Global Credit Facilities
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
Outstanding debt	$ 24.2	$ 24.5