Other Comprehensive Income - Components of Other Comprehensive Income (Loss) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013	Mar. 29, 2014	Dec. 31, 2013	Mar. 30, 2013	Dec. 31, 2012
Other Comprehensive Income Loss [Line Items]
Unrealized gains (losses) on hedging transactions, Gross (recognized in OCI)	$ 1,816	$ 366	$ 3,588	$ 3,658
Foreign currency translation adjustments	(8,035)	(8,404)	(8,035)	(8,404)	(8,006)	(7,839)	(8,627)	(8,721)
Unrealized gains (losses) on hedging transactions, Income tax (benefit) (recognized in OCI)	398	100	779	882
Unrealized gains (losses) on hedging transactions, Net (recognized in OCI)	1,418	266	2,809	2,776
Unrealized gains (losses) on investments, Gross (recognized in OCI)	482	(1,371)	603	(1,658)
Unrealized gains (losses) on investments, Income tax (benefit) (recognized in OCI)	132	(436)	161	(530)
Unrealized gains (losses) on investments, Net (recognized in OCI)	350	(935)	442	(1,128)
Foreign currency translation adjustments (recognized in OCI)	(29)	114	(189)	208
Total accumulated other comprehensive loss (recognized in OCI)	1,739	(555)	3,062	1,856
Unrealized gains (losses) on hedging transactions, Gross (reclassified from AOCI to income)	(817)	(876)	(1,809)	(1,898)
Unrealized gains (losses) on hedging transactions, Income tax (benefit) (reclassified from AOCI to income)	(175)	(219)	(389)	(474)
Unrealized gains (losses) on hedging transactions, Net (reclassified from AOCI to income)	(642)	(657)	(1,420)	(1,424)
Unrealized gains (losses) on investments, Gross (reclassified from AOCI to income)	(7)	95	74	274
Unrealized gains (losses) on investments, Income tax (benefit) (reclassified from AOCI to income)	(5)	27	20	85
Unrealized gains (losses) on investments, Net (reclassified from AOCI to income)	(2)	68	54	189
Foreign currency translation adjustments (reclassified from AOCI to income)	0	109	(7)	109
Total accumulated other comprehensive loss (reclassified from AOCI to income)	(644)	(480)	(1,373)	(1,126)
Unrealized gains (losses) on hedging transactions, Gross (Subtotal)	999	(510)	1,779	1,760
Unrealized gains losses on hedging transactions, Income tax (benefit) (Subtotal)	223	(119)	390	408
Unrealized gains (losses) on hedging transactions, Net (Subtotal)	776	(391)	1,389	1,352
Unrealized gains (losses) on investments, Gross (Subtotal)	475	(1,276)	677	(1,384)
Unrealized gains (losses) on investments, Income tax (benefit) (Subtotal)	127	(409)	181	(445)
Unrealized gains (losses) on investments, Net (Subtotal)	348	(867)	496	(939)
Foreign currency translation adjustments (Subtotal)	(29)	223	(196)	317
Total accumulated other comprehensive loss (Subtotal)	1,095	(1,035)	1,689	730
Total accumulated other comprehensive gains (losses)	(8,092)	(9,595)	(8,092)	(9,595)	(9,187)	(9,781)	(8,560)	(10,325)
Hedging [Member]
Other Comprehensive Income Loss [Line Items]
Unrealized gains (losses) on hedging transactions, Gross	(594)	(821)	(594)	(821)	(1,593)	(2,373)	(311)	(2,581)
Unrealized gains (losses) on hedging transactions, Income tax (benefit)	(119)	(191)	(119)	(191)	(342)	(509)	(72)	(599)
Total accumulated other comprehensive gains (losses)	(475)	(630)	(475)	(630)	(1,251)	(1,864)	(239)	(1,982)
Investments [Member]
Other Comprehensive Income Loss [Line Items]
Unrealized gains (losses) on hedging transactions, Gross	526	(844)	526	(844)	51	(151)	432	540
Unrealized gains (losses) on hedging transactions, Income tax (benefit)	108	(283)	108	(283)	(19)	(73)	126	162
Total accumulated other comprehensive gains (losses)	$ 418	$ (561)	$ 418	$ (561)	$ 70	$ (78)	$ 306	$ 378