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Revenue (Tables)
6 Months Ended
Jun. 30, 2020
Revenue from Contract with Customer [Abstract]  
Disaggregation of revenue by timing
The following table represents a disaggregation of revenue by timing of revenue along with the reportable segment for each category:
Three Months Ended June 30, 2020
D&S EastD&S WestE&C CryogenicsE&C FinFansIntersegment EliminationsConsolidated
Point in time$69.0  $91.3  $—  $20.9  $(1.4) $179.8  
Over time10.7  15.5  63.7  43.2  (2.5) 130.6  
Total$79.7  $106.8  $63.7  $64.1  $(3.9) $310.4  
Three Months Ended June 30, 2019
D&S EastD&S WestE&C CryogenicsE&C FinFansIntersegment EliminationsConsolidated
Point in time$75.0  $105.7  $0.1  $20.0  $(4.0) $196.8  
Over time2.7  10.0  47.5  52.6  —  112.8  
Total$77.7  $115.7  $47.6  $72.6  $(4.0) $309.6  
Six Months Ended June 30, 2020
D&S EastD&S WestE&C CryogenicsE&C FinFansIntersegment EliminationsConsolidated
Point in time$128.1  $193.7  $—  $42.1  $(4.1) $359.8  
Over time21.6  24.7  125.9  102.7  (3.2) 271.7  
Total$149.7  $218.4  $125.9  $144.8  $(7.3) $631.5  
Six Months Ended June 30, 2019
D&S EastD&S WestE&C CryogenicsE&C FinFansIntersegment EliminationsConsolidated
Point in time$138.9  $213.1  $0.3  $38.8  $(7.0) $384.1  
Over time7.5  20.6  82.4  104.3  —  214.8  
Total$146.4  $233.7  $82.7  $143.1  $(7.0) $598.9  
Changes in contract assets and contract liabilities balances
The following table represents changes in our contract assets and contract liabilities balances:
June 30, 2020December 31, 2019Year-to-date Change ($)Year-to-date Change (%)
Contract assets
Accounts receivable, net of allowances$184.4  $202.6  $(18.2) (9.0)%
Unbilled contract revenue85.5  86.1  (0.6) (0.7)%
Contract liabilities
Customer advances and billings in excess of contract revenue$133.6  $127.8  $5.8  4.5 %
Long-term deferred revenue0.5  0.8  (0.3) (37.5)%