Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 26, 2015	Sep. 27, 2014	Sep. 26, 2015		Sep. 27, 2014
Net income	$ 11,324	$ 29,940	$ 60,003		$ 79,907
Other comprehensive income (loss):
Pension liability adjustments (net of tax of $7 and $39, for the three months ended 2015 and 2014, and $49 and $178 for the nine months ended 2015 and 2014, respectively)	(16)	(63)	(140)	[1]	(243)
Reclassification adjustments to expense, (net of tax of $1,244 and $0, for the three months ended 2015 and 2014, and $746 and $0 for the nine months ended 2015 and 2014, respectively)	(514)	$ 67	1,457	[1]	$ 242
Reclassification of pension settlement costs to expense (net of tax of $11,742 for the three and nine months ended 2015)	21,124		21,124	[1]
Unrealized (loss) gain on investments	(3,354)	$ (1,773)	(18)		$ 1,811
Foreign currency translation adjustments	(26,377)	(14,962)	(36,530)		(15,273)
Comprehensive income	$ 2,187	$ 13,209	$ 45,896		$ 66,444

[1] Balances are net of tax of $3,115 and $12,587 for 2015 and 2014, respectively.