Condensed Consolidated Statements of Income and Comprehensive Income (Unaudited) - USD ($) shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Sales	$ 412.1	$ 328.3	$ 1,171.0	$ 938.8
Cost of sales	307.5	253.4	887.9	696.8
Gross profit	104.6	74.9	283.1	242.0
Selling, general, and administrative expenses	52.3	51.0	159.3	145.4
Amortization expense	10.6	10.1	32.4	28.5
Operating expenses	62.9	61.1	191.7	173.9
Operating income	41.7	13.8	91.4	68.1
Interest expense, net	5.7	3.2	13.3	7.4
Unrealized (gain) loss on investments in equity securities	(1.3)	(10.4)	10.9	(1.2)
Realized gain on equity method investment	0.0	0.0	(0.3)	0.0
Financing costs amortization	0.7	1.2	2.1	3.5
Foreign currency (gain) loss	(2.5)	(0.8)	(2.6)	0.1
Other income	(0.7)	(0.6)	(1.5)	0.0
Income before income taxes and equity in earnings (loss) of unconsolidated affiliates, net	39.8	21.2	69.5	58.3
Income tax (benefit) expense	(1.6)	5.5	4.0	9.9
Income before equity in earnings (loss) of unconsolidated affiliates, net	41.4	15.7	65.5	48.4
Equity in earnings (loss) of unconsolidated affiliates, net	0.2	(0.1)	(0.3)	0.1
Net income	41.6	15.6	65.2	48.5
Less: Income attributable to noncontrolling interests, net of taxes	0.4	0.7	0.8	1.5
Net income attributable to Chart Industries, Inc.	$ 41.2	$ 14.9	$ 64.4	$ 47.0
Net income attributable to Chart Industries, Inc. per common share:
Basic (usd per share)	$ 1.15	$ 0.42	$ 1.80	$ 1.32
Diluted (usd per share)	$ 0.98	$ 0.36	$ 1.56	$ 1.15
Weighted-average number of common shares outstanding:
Basic (shares)	35,870	35,620	35,850	35,590
Diluted (shares)	41,860	41,440	41,400	40,960
Comprehensive income (loss), net of taxes	$ 9.2	$ 4.1	$ (4.6)	$ 25.4
Less: Comprehensive (loss) income attributable to noncontrolling interests, net of taxes	(0.1)	0.7	(0.1)	1.5
Comprehensive income (loss) attributable to Chart Industries, Inc., net of taxes	$ 9.3	$ 3.4	$ (4.5)	$ 23.9