Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 28, 2013		Dec. 29, 2012		Dec. 31, 2011
Net income	$ 88,784		$ 75,332		$ 87,024
Other comprehensive income (loss):
Pension liability adjustments (net of tax of ($6,253), $4,181 and $3,587, respectively)	3,739	[1],[2]	(7,301)	[1],[2]	(6,703)	[1]
Unrealized gain (loss) on investments	1,526	[1],[3]	1,225	[1],[3]	(2,702)	[1]
Foreign currency translation adjustments	(1,396)		13,993		(3,205)
Comprehensive income	$ 92,653		$ 83,249		$ 74,414

[1] Including related tax impact (see Note 14).

[2] Net of tax of $6,253, $11,819, and $7,186 for 2013, 2012 and 2011, respectively.

[3] Net of tax of $0, $0 and $0 for 2013, 2012 and 2011, respectively.