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Goodwill and other identifiable intangible assets - Schedule of Intangible Assets (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets
Gross	$ 22.6	$ 23.4	$ 21.7
Accumulated amortization	(10.1)	(9.7)
Net	12.5	13.7
Customer relationships
Finite-Lived Intangible Assets
Gross	15.2	15.2	13.4
Accumulated amortization	(6.1)	(5.7)
Net	9.1	9.5
Technology and trading related
Finite-Lived Intangible Assets
Gross	7.4	8.2	$ 8.3
Accumulated amortization	(4.0)	(4.0)
Net	$ 3.4	$ 4.2

X

- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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-Publisher FASB
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