Condensed Consolidated Statements of Operations and Comprehensive (Loss) Income (Unaudited) - USD ($) shares in Thousands, $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Sales	$ 537.9	$ 354.1
Cost of sales	386.4	270.4
Gross profit	151.5	83.7
Selling, general, and administrative expenses	93.5	53.5
Amortization expense	21.8	10.1
Operating expenses	115.3	63.6
Operating income	36.2	20.1
Acquisition related finance fees	26.1	0.0
Interest expense, net	25.5	3.2
Financing costs amortization	2.8	0.7
Unrealized loss on investments in equity securities	2.0	2.6
Foreign currency (gain) loss	(1.1)	1.6
Other expense (income)	0.8	(0.7)
(Loss) income from continuing operations before income taxes and equity in loss of unconsolidated affiliates, net	(19.9)	12.7
Income tax (benefit) expense	(6.4)	2.1
(Loss) income from continuing operations before equity in loss of unconsolidated affiliates, net	(13.5)	10.6
Equity in loss of unconsolidated affiliates, net	(0.4)	(0.3)
Net (loss) income from continuing operations	(13.9)	10.3
Loss from discontinued operations, net of tax	(0.4)	0.0
Net (loss) income	(14.3)	10.3
Less: Income attributable to noncontrolling interests of continuing operations, net of taxes	0.7	0.1
Net (loss) income attributable to Chart Industries, Inc.	(15.0)	10.2
Amounts attributable to Chart common stockholders
(Loss) income from continuing operations	(14.6)	10.2
Less: Mandatory convertible preferred stock dividend requirement	6.8	0.0
(Loss) income from continuing operations attributable to Chart	(21.4)	10.2
Loss from discontinued operations, net of tax	(0.4)	0.0
Net (loss) income attributable to Chart common stockholders	(21.8)	10.2
Net (loss) income attributable to Chart common stockholders	$ (21.8)	$ 10.2
Basic earnings per common share attributable to Chart Industries, Inc.
(Loss) income from continuing operations (usd per share)	$ (0.51)	$ 0.28
Loss from discontinued operations (usd per share)	(0.01)	0
Net (loss) income attributable to Chart Industries, Inc. - Basic (usd per share)	(0.52)	0.28
Diluted earnings per common share attributable to Chart Industries, Inc.
(Loss) income from continuing operations (usd per share)	(0.51)	0.25
Loss from discontinued operations (usd per share)	(0.01)	0
Net (loss) income attributable to Chart Industries, Inc. - Diluted (usd per share)	$ (0.52)	$ 0.25
Weighted-average number of common shares outstanding:
Basic (shares)	41,940	35,830
Diluted (shares)	41,940	40,790
Comprehensive (loss) income, net of taxes	$ (10.2)	$ 4.3
Less: Comprehensive income attributable to noncontrolling interests, net of taxes	0.7	0.1
Comprehensive (loss) income attributable to Chart Industries, Inc., net of taxes	$ (10.9)	$ 4.2