Contingent matters (Details) - Chile Antitrust Matter - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Sep. 30, 2021
Loss Contingencies [Line Items]
Chile antitrust matter fine	$ 30.5
Chile antitrust matter charge		$ 9.5

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details