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Share Plans - Additional Information (Details)	3 Months Ended
	Mar. 28, 2021 $ / shares shares
Share-based Payment Arrangement [Abstract]
Granted during the year (in shares)	110,000
Granted during the year (in USD per share) | $ / shares	$ 21.14
Granted during the year, based on total shareholder return (in shares)	45,000

X

- Definition

Class Of Warrants Or Rights Issued During The Period

+ References

No definition available.

+ Details

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
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X

- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration