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Revenue
 9 Months Ended
Sep. 30, 2024
Revenue from Contract with Customer [Abstract]  
Revenue Revenue
Disaggregation of Revenue
The following tables represent a disaggregation of revenue by timing of revenue along with the reportable segment for each category:
Three Months Ended September 30, 2024
Cryo Tank SolutionsHeat Transfer SystemsSpecialty ProductsRepair, Service & LeasingIntersegment EliminationsConsolidated
Point in time$83.6 $5.5 $54.9 $209.7 $— $353.7 
Over time78.9 250.7 228.4 150.8 — 708.8 
Total$162.5 $256.2 $283.3 $360.5 $— $1,062.5 
Three Months Ended September 30, 2023
Cryo Tank SolutionsHeat Transfer SystemsSpecialty ProductsRepair, Service & LeasingIntersegment EliminationsConsolidated
Point in time$108.3 $16.5 $62.1 $152.6 $(2.5)$337.0 
Over time50.7 216.0 177.9 118.7 (2.4)560.9 
Total$159.0 $232.5 $240.0 $271.3 $(4.9)$897.9 
Nine Months Ended September 30, 2024
Cryo Tank SolutionsHeat Transfer SystemsSpecialty ProductsRepair, Service & LeasingIntersegment EliminationsConsolidated
Point in time$285.2 $26.9 $202.4 $613.5 $— $1,128.0 
Over time202.5 719.6 595.0 408.5 (0.1)1,925.5 
Total$487.7 $746.5 $797.4 $1,022.0 $(0.1)$3,053.5 
Nine Months Ended September 30, 2023
Cryo Tank SolutionsHeat Transfer SystemsSpecialty ProductsRepair, Service & LeasingIntersegment EliminationsConsolidated
Point in time$295.1 $48.5 $123.6 $408.7 $(15.2)$860.7 
Over time140.1 587.5 479.3 279.8 (9.9)1,476.8 
Total$435.2 $636.0 $602.9 $688.5 $(25.1)$2,337.5 
Refer to Note 3, “Reportable Segments,” for a table of revenue by reportable segment disaggregated by geography.
Contract Balances
The following table presents our contract assets and contract liabilities balances:
September 30, 2024December 31, 2023
Contract assets
Accounts receivable, net of allowances$805.6 $758.9 
Unbilled contract revenue680.2 481.7 
Contract liabilities
Customer advances and billings in excess of contract revenue$366.0 $376.6 
Revenue recognized for the three months ended September 30, 2024 and 2023, that was included in the contract liabilities balance at the beginning of the year was $65.0 and $17.3, respectively. Revenue recognized for the nine months ended September 30, 2024 and 2023, that was included in the contract liabilities balance at the beginning of each year was $284.9 and $162.7, respectively. The amount of revenue recognized during the nine months ended September 30, 2024 from performance obligations satisfied or partially satisfied in previous periods as a result of changes in the estimates of variable consideration related to long-term contracts, was not significant.
Remaining Performance Obligations
Remaining performance obligations represent the transaction price of firm signed purchase orders or other written contractual commitments from customers for which work has not been performed, or is partially completed, and excludes unexercised contract options and potential orders. As of September 30, 2024, the estimated revenue expected to be recognized in the future related to remaining performance obligations was $4,535.3. We expect to recognize revenue on approximately 61% of the remaining performance obligations over the next 12 months and the remaining over the next few years thereafter.