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Debt Obligations (Tables)
 3 Months Ended
Mar. 31, 2025
Debt Disclosure [Abstract]  
Schedule of Debt and Finance Lease Obligations
Debt obligations, including finance lease obligations, consisted of the following (in millions):
March 31,
2025		December 31, 2024
Infrastructure
PRIME minus 1.00% Line of Credit due 2025
$50.0 $45.0 
3.25% Term Loan due 2026
72.8 74.6 
PRIME minus 1.00% Term Loan due 2026
24.2 24.5 
Obligations under finance leases0.2 0.6 
Total Infrastructure$147.2 $144.7 
Spectrum
8.50% Note due 2025
$19.3 $19.3 
11.45% Notes due 2025
50.4 50.4 
Total Spectrum$69.7 $69.7 
Life Sciences
20.00% Notes due 2025
$25.2 24.0 
Total Life Sciences$25.2 $24.0 
Non-Operating Corporate
   8.50% Senior Secured Notes due 2026
$330.0 $330.0 
7.50% Convertible Senior Notes due 2026
48.9 48.9 
SOFR plus 5.75% Line of Credit due 2025
20.0 20.0 
CGIC Unsecured Note due 202631.0 31.0 
Total Non-Operating Corporate$429.9 $429.9 
Total outstanding principal$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 
Schedule of Maturities of Debt and Finance Lease Obligations
As of March 31, 2025, estimated future aggregate finance lease and debt payments, including interest, were as follows (in millions):

Finance LeasesDebtTotal
2025 (remaining period) (1)
$0.1 $234.5 $234.6 
20260.1 507.6 507.7 
Total minimum principal and interest payments
0.2 742.1 742.3 
Less: Amount representing interest (1)
— (70.3)(70.3)
Total aggregate finance lease and debt payments $0.2 $671.8 $672.0 
(1) Excludes exit fees for Spectrum and R2 Technologies.