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Operating Segments and Related Information (Tables)
3 Months Ended
Mar. 31, 2024
Segment Reporting [Abstract]  
Schedules of Concentration of Risk, by Risk Factor
The Company's revenue concentrations of 10% and greater were as follows:

Three Months Ended March 31,
Segment20242023
Customer AInfrastructure27.6%28.1%
Schedule of Company's Operating Segments
Summarized financial information with respect to the Company’s operating segments is as follows (in millions):

 Three Months Ended March 31,
 20242023
Revenue
Infrastructure
$307.9 $311.7 
Life Sciences1.0 0.5 
Spectrum6.3 5.7 
Total revenue$315.2 $317.9 

 Three Months Ended March 31,
 20242023
Income (loss) from operations
Infrastructure
$9.3 $6.3 
Life Sciences(3.2)(4.4)
Spectrum0.2 (0.5)
Other— (1.4)
Non-Operating Corporate
(3.5)(4.0)
Total income (loss) from operations
$2.8 $(4.0)

 Three Months Ended March 31,
20242023
Reconciliation of the consolidated segment income (loss) from operations to consolidated loss from operations before income taxes:
Income (loss) from operations$2.8 $(4.0)
Interest expense(17.2)(15.6)
Loss from equity investees(1.2)(4.0)
Other (expense) income, net(1.2)16.5 
Loss from operations before income taxes$(16.8)$(7.1)
 Three Months Ended March 31,
 20242023
Depreciation and Amortization
Infrastructure
$3.0 $4.9 
Infrastructure recognized within cost of revenue
4.0 3.9 
Total Infrastructure7.0 8.8 
Life Sciences0.1 0.1 
Spectrum1.3 1.3 
Total depreciation and amortization$8.4 $10.2 

Three Months Ended March 31,
 20242023
Capital Expenditures (*)
Infrastructure
$5.2 $3.0 
Life Sciences0.1 0.1 
Spectrum0.3 0.3 
Non-Operating Corporate
— 0.3 
Total$5.6 $3.7 
(*) The above capital expenditures exclude assets acquired under finance lease and other financing obligations.
Schedule of Segment Reporting for Long-term investments, Property and Equipment - Net and Assets
March 31,
2024
December 31, 2023
 
Investments
Life Sciences$1.8 $1.8 
Total$1.8 $1.8 

The Company's equity method investments in the Life Sciences segment included in the table above totaled $0.9 million as of both March 31, 2024 and December 31, 2023.

March 31,
2024
December 31, 2023
 
Total Assets
Infrastructure
$746.6 $851.4 
Life Sciences8.2 8.3 
Spectrum175.5 176.6 
Non-Operating Corporate
13.2 7.3 
Total$943.5 $1,043.6