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Changes in Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 01, 2017	Oct. 02, 2016	Oct. 01, 2017	Oct. 02, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance			$ 1,828,659
Other comprehensive income before reclassifications, net of tax			36,683	$ 12,241
Amounts reclassified from accumulated other comprehensive income, net of tax			(468)	(712)
Other comprehensive income	$ 10,086	$ 1,092	36,215	11,529
Ending balance	2,109,897		2,109,897
Foreign currency translation reclassification adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance			(21,921)	(8,759)
Other comprehensive income before reclassifications, net of tax			34,235	7,072
Other comprehensive income			34,235	7,072
Ending balance	12,314	(1,687)	12,314	(1,687)
Unrealized Gains (Losses) on Marketable Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance			(60)	(1,414)
Other comprehensive income before reclassifications, net of tax			2,448	5,110
Amounts reclassified from accumulated other comprehensive income, net of tax			(264)	(468)
Other comprehensive income			2,184	4,642
Ending balance	2,124	3,228	2,124	3,228
Amortization of prior service credit
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance			1,767	2,029
Other comprehensive income before reclassifications, net of tax				59
Amounts reclassified from accumulated other comprehensive income, net of tax	(68)	(81)	(204)	(244)
Other comprehensive income			(204)	(185)
Ending balance	1,563	1,844	1,563	1,844
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance			(20,214)	(8,144)
Amounts reclassified from accumulated other comprehensive income, net of tax	(155)	(415)	(468)	(712)
Ending balance	$ 16,001	$ 3,385	$ 16,001	$ 3,385

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Amount after tax, before reclassification adjustments of other comprehensive income (loss).

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-Name Accounting Standards Codification
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-SubTopic 10
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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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Amount after tax of reclassification adjustments of other comprehensive income (loss).

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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