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Associated companies - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Equity Method Investments and Joint Ventures [Abstract]
Undistributed earnings of investments	$ 63.0	$ 62.0

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- References

No definition available.

+ Details

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- Definition

Amount of consolidated retained earnings that represent undistributed (not yet received) earnings from 50 percent or less owned persons accounted for by the equity method (equity method investees).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(e)(2))
-URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

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