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Investments - Equity Method Investments Narratives (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Mar. 31, 2023	Mar. 17, 2023	Dec. 31, 2022
Debt and Equity Securities, FV-NI
Equity method investments	$ 120.6		$ 120.6				$ 93.0
Equity in earnings (loss) of unconsolidated affiliates			1.2	$ (0.6)
Payments to acquire equity interest			25.5
Howden Industries
Debt and Equity Securities, FV-NI
Equity method investments	22.3		22.3
Cryomotive GmbH
Debt and Equity Securities, FV-NI
Equity method investments	5.0		5.0				4.9
Equity in earnings (loss) of unconsolidated affiliates	(0.1)	$ 0.4	(0.1)	0.9
HTEC
Debt and Equity Securities, FV-NI
Equity method investments	82.0		82.0				80.8
Equity in earnings (loss) of unconsolidated affiliates	0.6	(0.3)	(0.4)	(0.5)
Hudson Products de Mexico S.A. de CV
Debt and Equity Securities, FV-NI
Equity method investments	4.5		4.5				4.0
Equity in earnings (loss) of unconsolidated affiliates	$ 0.2	0.3	$ 0.5	0.6
Equity investments, ownership interest (percent)	50.00%		50.00%
Liberty LNG
Debt and Equity Securities, FV-NI
Equity method investments	$ 3.0		$ 3.0				$ 2.9
Equity in earnings (loss) of unconsolidated affiliates	$ 0.0	$ 0.1	$ 0.1	$ 0.2
Equity investments, ownership interest (percent)	25.00%		25.00%
Other Investments
Debt and Equity Securities, FV-NI
Equity in earnings (loss) of unconsolidated affiliates			$ 0.4
Hylium Industries, Inc.
Debt and Equity Securities, FV-NI
Equity method investments					$ 2.2
Equity investments, ownership interest (percent)					50.00%
Payments to acquire equity interest			2.3
L &T Howden Private Ltd.
Debt and Equity Securities, FV-NI
Equity method investments					$ 22.3
Equity in earnings (loss) of unconsolidated affiliates	$ 0.1		$ 0.1
Equity investments, ownership interest (percent)						49.90%

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