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Investments - Equity Method Investments Narratives (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	May 04, 2022	Dec. 31, 2021	Aug. 27, 2021
Debt and Equity Securities, FV-NI
Equity method investments	$ 91.7			$ 91.7			$ 99.6
Equity in earnings (loss) of unconsolidated affiliates, net				(0.3)	$ 0.1
Realized gain on equity method investment	0.0		$ 0.0	0.3	0.0
Cryomotive GmbH
Debt and Equity Securities, FV-NI
Equity method investments	4.9			4.9			7.1
Equity in earnings (loss) of unconsolidated affiliates, net	(0.4)		0.3	(1.3)	0.3
HTEC
Debt and Equity Securities, FV-NI
Equity method investments	79.6			79.6			86.4
Equity in earnings (loss) of unconsolidated affiliates, net	0.2			(0.3)
Hudson Products de Mexico S.A. de CV
Debt and Equity Securities, FV-NI
Equity method investments	4.0			4.0			3.3
Equity in earnings (loss) of unconsolidated affiliates, net	$ 0.3		0.1	$ 0.9	0.2
Equity investments, ownership interest (percent)	50.00%			50.00%
Liberty LNG
Debt and Equity Securities, FV-NI
Equity method investments	$ 2.8			$ 2.8			$ 2.4
Equity in earnings (loss) of unconsolidated affiliates, net	$ 0.2		$ 0.1	$ 0.4	$ 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, net				$ 0.4
AdEdge India
Debt and Equity Securities, FV-NI
Equity method investments								$ 0.5
Equity investments, ownership interest (percent)		50.00%				50.00%		50.00%
Realized gain on equity method investment		$ 0.3