Revenue (Tables)

6 Months Ended

Jun. 30, 2021

Revenue from Contract with Customer [Abstract]

Disaggregation of revenue by timing

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

	Three Months Ended June 30, 2021
	Cryo Tank Solutions		Heat Transfer Systems		Specialty Products		Repair, Service & Leasing		Intersegment Eliminations		Consolidated
Point in time	$	89.8	$	5.2	$	73.4	$	37.8	$	(1.5)	$	204.7
Over time	8.0		60.0		33.4		16.8		(0.9)		117.3
Total	$	97.8	$	65.2	$	106.8	$	54.6	$	(2.4)	$	322.0

	Three Months Ended June 30, 2020
	Cryo Tank Solutions		Heat Transfer Systems		Specialty Products		Repair, Service & Leasing		Intersegment Eliminations		Consolidated
Point in time	$	94.4	$	8.1	$	32.6	$	25.9	$	(0.7)	$	160.3
Over time	10.9		89.2		16.0		14.2		(1.1)		129.2
Total	$	105.3	$	97.3	$	48.6	$	40.1	$	(1.8)	$	289.5

	Six Months Ended June 30, 2021
	Cryo Tank Solutions		Heat Transfer Systems		Specialty Products		Repair, Service & Leasing		Intersegment Eliminations		Consolidated
Point in time	$	188.5	$	10.8	$	135.3	$	64.5	$	(4.4)	$	394.7
Over time	13.2		123.6		48.8		31.5		(1.3)		215.8
Total	$	201.7	$	134.4	$	184.1	$	96.0	$	(5.7)	$	610.5

	Six Months Ended June 30, 2020
	Cryo Tank Solutions		Heat Transfer Systems		Specialty Products		Repair, Service & Leasing		Intersegment Eliminations		Consolidated
Point in time	$	184.2	$	15.2	$	71.4	$	53.9	$	(2.2)	$	322.5
Over time	19.1		195.0		30.1		26.9		(2.2)		268.9
Total	$	203.3	$	210.2	$	101.5	$	80.8	$	(4.4)	$	591.4

Changes in contract assets and contract liabilities balances

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

	June 30, 2021		December 31, 2020		Year-to-date Change ($)		Year-to-date Change (%)
Contract assets
Accounts receivable, net of allowances	$	220.0	$	200.8	$	19.2	9.6	%
Unbilled contract revenue	68.2		79.4		(11.2)		(14.1)	%
Contract liabilities
Customer advances and billings in excess of contract revenue	$	126.1	$	118.9	$	7.2	6.1	%
Long-term deferred revenue	1.0		1.9		(0.9)		(47.4)	%