Revenue (Tables)

6 Months Ended

Jun. 30, 2018

The following table represents changes in our contract assets and contract liabilities balances:



	June 30, 2018		January 1, 2018		Year-to-date Change ($)		Year-to-date Change (%)
Contract assets
Accounts receivable, net of allowances	$	204.4	$	222.7	(18.3	)	8.2	%
Unbilled contract revenue	41.2		43.5		(2.3	)	5.3	%

Contract liabilities
Customer advances and billings in excess of contract revenue	$	108.9	$	100.3	8.6		(8.6	)%
Long-term deferred revenue	2.7		2.6		0.1		(3.8	)%

The following table represents a disaggregation of revenue by product application along with the reportable segment for each category:



	Three Months Ended June 30, 2018
	Energy & Chemicals		Distribution & Storage		BioMedical		Intersegment Eliminations			Consolidated
Natural gas processing (including petrochemical) applications	$	69.0	$	—	$	—	$	—		$	69.0
Liquefied natural gas (LNG) applications	7.1		35.8		—		(0.3		)	42.6
Industrial gas applications	3.0		—		—		—			3.0
HVAC, power and refining applications	21.7		—		—		—			21.7
Bulk industrial gas applications	—		64.9		—		—			64.9
Packaged gas industrial applications	—		56.7		—		—			56.7
Respiratory therapy	—		—		34.3		—			34.3
Cryobiological storage	—		—		20.0		—			20.0
On-site generation systems	—		—		7.7		—			7.7
Total	$	100.8	$	157.4	$	62.0	$	(0.3	)	$	319.9



	Six Months Ended June 30, 2018
	Energy & Chemicals		Distribution & Storage		BioMedical		Intersegment Eliminations			Consolidated
Natural gas processing (including petrochemical) applications	$	127.7	$	—	$	—	$	—		$	127.7
Liquefied natural gas (LNG) applications	16.1		70.0		—		(1.3		)	84.8
Industrial gas applications	6.4		—		—		—			6.4
HVAC, power and refining applications	40.5		—		—		—			40.5
Bulk industrial gas applications	—		117.9		—		—			117.9
Packaged gas industrial applications	—		105.6		—		—			105.6
Respiratory therapy	—		—		63.2		—			63.2
Cryobiological storage	—		—		39.1		—			39.1
On-site generation systems	—		—		14.4		—			14.4
Total	$	190.7	$	293.5	$	116.7	$	(1.3	)	$	599.6

The following table represents a disaggregation of revenue by timing of revenue along with the reportable segment for each category: