Equity (Details) (USD $)	12 Months Ended
	Dec. 30, 2011	Dec. 31, 2010	Dec. 25, 2009
Entity Information [Line Items]
Restricted retained earnings as a percentage of net earnings (in hundredths)	10.00%
Restricted retained earnings as a percentage of total capital invested (in hundredths)	50.00%
Accumulated other comprehensive income [Abstract]
Defined Benefit Plan Adjustments	$ (3,211,000)	$ 252,000	$ 74,000
Currency Translation Adjustments	25,176,000	23,736,000	28,185,000
Unrealized Holding (Losses) Gains on Securities	12,000	5,000	45,000
Total	21,977,000	23,993,000	28,304,000
Other comprehensive income [Abstract]
Current year changes, defined benefit plan adjustments	(3,463,000)	178,000	4,696,000
Current year changes, currency translation adjustments	1,440,000	(4,449,000)	48,444,000
Current year changes, unrealized holding (losses) gains on securities	7,000	(40,000)	1,790,000
Current year changes, total	(2,016,000)	(4,311,000)
Majority-Owned Subsidiary [Member]
Entity Information [Line Items]
Restricted retained earnings	2,500,000
Subsidiary [Member]
Entity Information [Line Items]
Restricted retained earnings	$ 26,000,000