CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified	Dec. 28, 2012	Dec. 30, 2011
Allowance for trade accounts receivable	$ 6.8	$ 7.4
Allowance for other accounts receivable	$ 7.6	$ 9.8
Stockholders' Equity, Number of Shares, Par Value and Other Disclosures [Abstract]
Ordinary shares, par value	$ 0.01
Ordinary shares, authorized	200,000,000	200,000,000
Ordinary shares, issued	57,707,385	57,764,454
Ordinary shares, outstanding	57,707,385	57,764,454
Preferred shares, par value	$ 0.01	$ 0.01
Preferred shares, shares authorized	50,000,000	50,000,000
Preferred shares, issued	0	0
Preferred shares, outstanding	0	0