Other Comprehensive Income - Components of Other Comprehensive Income (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012	Mar. 30, 2013	Dec. 31, 2012	Mar. 30, 2012	Dec. 31, 2011
Other Comprehensive Income Loss [Line Items]
Unrealized gains (losses) on hedging transactions, Gross (recognized in OCI)	$ 366	$ 1,722	$ 3,658	$ (5,973)
Foreign currency translation adjustments	(8,404)	(8,775)	(8,404)	(8,775)	(8,627)	(8,721)	(8,880)	(8,963)
Unrealized gains (losses) on hedging transactions, Income tax (benefit) (recognized in OCI)	100	430	882	(1,751)
Unrealized gains (losses) on hedging transactions, Net (recognized in OCI)	266	1,292	2,776	(4,222)
Unrealized gains (losses) on investments, Gross (recognized in OCI)	(1,371)	(238)	(1,658)	646
Unrealized gains (losses) on investments, Income tax (benefit) (recognized in OCI)	(436)	(86)	(530)	213
Unrealized gains (losses) on investments, Net (recognized in OCI)	(935)	(152)	(1,128)	433
Foreign currency translation adjustments (recognized in OCI)	114	105	208	188
Total accumulated other comprehensive loss (recognized in OCI)	(555)	1,245	1,856	(3,601)
Unrealized gains (losses) on hedging transactions, Gross (reclassified from AOCI to income)	(876)	1,478	(1,898)	2,635
Unrealized gains (losses) on hedging transactions, Income tax (benefit) (reclassified from AOCI to income)	(219)	370	(474)	659
Unrealized gains (losses) on hedging transactions, Net (reclassified from AOCI to income)	(657)	1,108	(1,424)	1,976
Unrealized gains (losses) on investments, Gross (reclassified from AOCI to income)	95	167	274	151
Unrealized gains (losses) on investments, Income tax (benefit) (reclassified from AOCI to income)	27	61	85	60
Unrealized gains (losses) on investments, Net (reclassified from AOCI to income)	68	106	189	91
Foreign currency translation adjustments (reclassified from AOCI to income)	109	0	109	0
Total accumulated other comprehensive loss (reclassified from AOCI to income)	(480)	1,214	(1,126)	2,067
Unrealized gains (losses) on hedging transactions, Gross (Subtotal)	(510)	3,200	1,760	(3,338)
Unrealized gains losses on hedging transactions, (Income) tax (benefit) (Subtotal)	(119)	800	408	(1,092)
Unrealized gains (losses) on hedging transactions, Net (Subtotal)	(391)	2,400	1,352	(2,246)
Unrealized gains (losses) on investments, Gross (Subtotal)	(1,276)	(71)	(1,384)	797
Unrealized gains (losses) on investments, Income tax (benefit) (Subtotal)	(409)	(25)	(445)	273
Unrealized gains (losses) on investments, Net (Subtotal)	(867)	(46)	(939)	524
Foreign currency translation adjustments (Subtotal)	223	105	317	188
Total accumulated other comprehensive loss (Subtotal)	(1,035)	2,459	730	(1,534)
Total accumulated other comprehensive loss	(9,595)	(5,747)	(9,595)	(5,747)	(8,560)	(10,325)	(8,206)	(4,213)
Hedging [Member]
Other Comprehensive Income Loss [Line Items]
Unrealized gains (losses) on hedging transactions, Gross	(821)	4,017	(821)	4,017	(311)	(2,581)	817	7,355
Unrealized gains (losses) on hedging transactions, Income tax (benefit)	(191)	1,004	(191)	1,004	(72)	(599)	204	2,096
Total accumulated other comprehensive loss	(630)	3,013	(630)	3,013	(239)	(1,982)	613	5,259
Investments [Member]
Other Comprehensive Income Loss [Line Items]
Unrealized gains (losses) on hedging transactions, Gross	(844)	0	(844)	0	432	540	71	(797)
Unrealized gains (losses) on hedging transactions, Income tax (benefit)	(283)	(15)	(283)	(15)	126	162	10	(288)
Total accumulated other comprehensive loss	$ (561)	$ 15	$ (561)	$ 15	$ 306	$ 378	$ 61	$ (509)