Changes in Accumulated Other Comprehensive Income (Loss) Balances (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2016	Oct. 04, 2015	Oct. 02, 2016	Oct. 04, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance			$ 1,965,786
Other comprehensive income (loss) before reclassifications, net of tax			12,182	$ (3,593)
Amounts reclassified from accumulated other comprehensive income (loss) net of tax			(653)	(1,029)
Other comprehensive income (loss), net of tax	$ 1,092	$ 3,229	11,529	(4,622)
Ending balance	1,782,144		1,782,144
Foreign currency translation reclassification adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance			(8,759)
Other comprehensive income (loss) before reclassifications, net of tax			7,072	(3,000)
Other comprehensive income (loss), net of tax			7,072	(3,000)
Ending balance	(1,687)	(3,000)	(1,687)	(3,000)
Unrealized Gains (Losses) on Marketable Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance			(1,414)	2,365
Other comprehensive income (loss) before reclassifications, net of tax			5,110	(593)
Amounts reclassified from accumulated other comprehensive income (loss) net of tax			468	808
Other comprehensive income (loss), net of tax			4,642	(1,401)
Ending balance	3,228	964	3,228	964
Retirement Plans Prior Service Credit
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance			2,029	2,324
Amounts reclassified from accumulated other comprehensive income (loss) net of tax	81	74	185	221
Other comprehensive income (loss), net of tax			(185)	(221)
Ending balance	1,844	2,103	1,844	2,103
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance			(8,144)	4,689
Amounts reclassified from accumulated other comprehensive income (loss) net of tax	415	321	653	1,029
Ending balance	$ 3,385	$ 67	$ 3,385	$ 67