Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Statement of Comprehensive Income [Abstract]
Net income	$ 164,243	$ 439,948	$ 72,229
Other comprehensive loss, net of tax effects:
Foreign currency translation adjustments	(21,470)	(5,337)	2,731
Changes in unrealized holding gains or losses on available-for-sale securities, net of reclassification adjustments for realized gains and losses	(180)	(905)	(5,140)
Changes in defined benefit plan liabilities	2,011	(761)	306
Total other comprehensive loss, net of tax effects	(19,639)	(7,003)	(2,103)
Comprehensive income	$ 144,604	$ 432,945	$ 70,126