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Litigation and contingencies - Additional Information (Detail) - USD ($) $ in Millions	Nov. 23, 2020	Jun. 26, 2014	Dec. 31, 2020
Loss Contingencies [Line Items]
Amount related to unreserved tax-related matters, inclusive of interest (up to)			$ 81.0
Pharmaceutical Claims
Loss Contingencies [Line Items]
Loss contingency, damages sought value		$ 48.0
Loss contingency, settlement amount	$ 10.6

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- Definition

Unreserved Tax Related Matters Inclusive of Interest

+ References

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- Definition

Amount of damages awarded to the plaintiff in the legal matter.

+ References

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-Publisher FASB
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The value (monetary amount) of the award the plaintiff seeks in the legal matter.

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