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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Shareholders' Equity (Detail) - USD ($) $ / shares in Units, $ in Millions										12 Months Ended
	Feb. 23, 2024	Dec. 09, 2022	Sep. 09, 2022	Jun. 10, 2022	Apr. 01, 2022	Dec. 10, 2021	Sep. 10, 2021	Jun. 11, 2021	Apr. 02, 2021	Dec. 29, 2023	Dec. 30, 2022	Dec. 31, 2021
Subsequent Event [Line Items]
Preferred shares, shares authorized (shares)										50,000,000	50,000,000
Preferred shares, par value (usd per share)										$ 0.01	$ 0.01
Preferred shares, issued (shares)										0	0
Ordinary shares, authorized (shares)										200,000,000	200,000,000
Ordinary shares, par value (usd per share)										$ 0.01	$ 0.01
Ordinary shares, issued (shares)										47,629,018	47,838,680
Ordinary shares, outstanding (shares)										47,629,018	47,838,680
Dividends:
Dividends declared per ordinary share (usd per share)		$ 0.20	$ 0.20	$ 0.20	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.75	$ 0.60	$ 0.50
Payments of dividends, common stock										$ 35.9	$ 28.7	$ 23.7
Subsequent Event
Dividends:
Dividends declared per ordinary share (usd per share)	$ 0.25