Condensed Consolidated Balance Sheets (Parenthetical) $ in Millions	Sep. 26, 2025 USD ($) $ / shares shares	Sep. 26, 2025 € / shares	Dec. 27, 2024 USD ($) $ / shares shares	Dec. 27, 2024 € / shares
Allowance for doubtful accounts | $	$ 3.5		$ 6.2
Preferred shares, par value (in usd per share) | $ / shares	$ 0.01		$ 0.01
Preferred shares, shares authorized (in shares)	500,000,000		500,000,000
Preferred shares, shares issued (in shares)	0		0
Preferred shares, shares outstanding (in shares)	0		0
Ordinary A
Ordinary shares, par value (in dollars and euros per share) | € / shares		€ 1.00		€ 1.00
Ordinary shares, shares authorized (in shares)	25,000		25,000
Ordinary shares, shares issued (in shares)	0
Ordinary shares, shares outstanding (in shares)	0		0
Ordinary Shares
Ordinary shares, par value (in dollars and euros per share) | $ / shares	$ 0.01		$ 0.01
Ordinary shares, shares authorized (in shares)	500,000,000		500,000,000
Ordinary shares, shares issued (in shares)	39,421,403		19,696,335
Ordinary shares, shares outstanding (in shares)	39,421,403		19,696,335