CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022		Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 56.9	$ 25.0		$ 60.9
Other comprehensive income (loss):
Foreign currency translation adjustments	63.7	(35.3)		(29.0)
Defined benefit pension plan:
Actuarial gain (loss) on remeasurement	5.8	(1.7)		5.9
Amortization of net loss	0.9	0.5		1.0
Defined benefit pension plan	6.7	(1.2)		6.9
Other comprehensive income (loss), before tax	70.4	(36.5)		(22.1)
Income tax (expense) benefit related to defined benefit pension plan	(1.6)	0.2		(2.0)
Other comprehensive income (loss), net of taxes	68.8	(36.3)	[1]	(24.1)
Comprehensive income (loss)	125.7	(11.3)		36.8
Less: Comprehensive income attributable to noncontrolling interests, net of taxes	(9.6)	(1.0)		(1.8)
Comprehensive income (loss) attributable to Chart Industries, Inc.	$ 116.1	$ (12.3)		$ 35.0

[1] Cumulative effect of change in accounting principle refers to the impact of the adoption of Accounting Standards Update 2020-06, “Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging—Contracts in Entities Own Equity (Subtopic 815-40)” in relation to our convertible notes due November 2024.