Revenue (Tables)

12 Months Ended

Dec. 31, 2022

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:

	Year Ended December 31, 2022
	Cryo Tank Solutions		Heat Transfer Systems		Specialty Products		Repair, Service & Leasing		Intersegment Eliminations		Consolidated
Point in time	$	443.4	$	27.3	$	214.8	$	104.4	$	(8.8)	$	781.1
Over time	60.9		435.4		233.5		105.2		(3.7)		831.3
Total	$	504.3	$	462.7	$	448.3	$	209.6	$	(12.5)	$	1,612.4

	Year Ended December 31, 2021
	Cryo Tank Solutions		Heat Transfer Systems		Specialty Products		Repair, Service & Leasing		Intersegment Eliminations		Consolidated
Point in time	$	407.6	$	19.2	$	300.5	$	119.1	$	(10.7)	$	835.7
Over time	39.8		243.5		132.4		67.9		(1.6)		482.0
Total	$	447.4	$	262.7	$	432.9	$	187.0	$	(12.3)	$	1,317.7

	Year Ended December 31, 2020
	Cryo Tank Solutions		Heat Transfer Systems		Specialty Products		Repair, Service & Leasing		Intersegment Eliminations		Consolidated
Point in time	$	378.3	$	28.6	$	184.6	$	110.3	$	(4.5)	$	697.3
Over time	37.5		341.2		58.0		48.0		(4.9)		479.8
Total	$	415.8	$	369.8	$	242.6	$	158.3	$	(9.4)	$	1,177.1

Changes in Contract Assets and Contract Liabilities Balances

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

	December 31, 2022		December 31, 2021		Year-to-date Change ($)		Year-to-date Change (%)
Contract assets
Accounts receivable, net of allowances	$	278.4	$	236.3	$	42.1	17.8	%
Unbilled contract revenue	133.7		93.5		40.2		43.0	%
Contract liabilities
Customer advances and billings in excess of contract revenue	$	170.6	$	148.5	$	22.1	14.9	%
Long-term deferred revenue	0.3		0.4		(0.1)		(25.0)	%