Shareholders' Equity (Details) (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended		3 Months Ended					6 Months Ended
	Feb. 28, 2013	Jun. 30, 2012	Jun. 29, 2013		Mar. 30, 2013		Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012	Dec. 31, 2012
Changes in components of OCI [Line Items]
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax			$ 130,773		$ 116,462			$ 130,773		$ 182,632
Accumulated Other Comprehensive Income (Loss), Other, Net of Tax			(35,449)					(35,449)		(37,495)
Accumulated Other Comprehensive Income (Loss), Net of Tax			95,324		79,532			95,324		145,137
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment			14,311		(66,170)		(95,669)	(51,859)	(47,634)
Other Comprehensive Income (Loss) Unrealized gain (loss) on investment securities, net			581		(1,978)		(5,582)	(1,397)	1,047
Other Comprehensive Income (Loss), Unrealized Gain on Derivatives Arising During Period, Net			137		1,744		(6,528)	1,881	(3,764)
Other Comprehensive Income (Loss), Employee Benefit Plan Items, Adjustment, Net			763		799		677	1,562	1,166
Other Comprehensive Income (Loss), Net of Tax			15,792		(65,605)		(107,102)	(49,813)	(49,185)
Stock Repurchase Program, Authorized Amount	200,000	200,000
Treasury Stock, Shares, Acquired			10,376,515
Treasury Stock, Value, Acquired, Cost Method			398,572
Other comprehensive income before reclassifications [Member]
Changes in components of OCI [Line Items]
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment			14,083	[1]	(66,422)	[1]
Other Comprehensive Income (Loss) Unrealized gain (loss) on investment securities, net			581		(1,978)
Other Comprehensive Income (Loss), Unrealized Gain on Derivatives Arising During Period, Net			0		1,923
Other Comprehensive Income (Loss), Employee Benefit Plan Items, Adjustment, Net			46		4
Other Comprehensive Income (Loss), Net of Tax			14,710		(66,473)
Other comprehensive income before reclassifications [Member] | Intra-entity foreign currency transactions [Member]
Changes in components of OCI [Line Items]
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment			(13,224)	[1]	4,622	[1]
Amounts reclassified into income [Member]
Changes in components of OCI [Line Items]
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment			228		252
Other Comprehensive Income (Loss) Unrealized gain (loss) on investment securities, net			0		0
Other Comprehensive Income (Loss), Unrealized Gain on Derivatives Arising During Period, Net			137		(179)
Other Comprehensive Income (Loss), Employee Benefit Plan Items, Adjustment, Net			717		795
Other Comprehensive Income (Loss), Net of Tax			1,082		868
Unrealized Gain (Loss) on Investment Securities, Net [Member]
Changes in components of OCI [Line Items]
Accumulated Other Comprehensive Income (Loss), Other, Net of Tax			18,220		17,639			18,220		19,617
Unrealized Gain (Loss) on Interest Rate Swaps Designated as Cash Flow Hedges, Net [Member]
Changes in components of OCI [Line Items]
Accumulated Other Comprehensive Income (Loss), Other, Net of Tax			(4,788)		(4,925)			(4,788)		(6,669)
Employee Benefit Plan Items, Net [Member]
Changes in components of OCI [Line Items]
Accumulated Other Comprehensive Income (Loss), Other, Net of Tax			$ (48,881)		$ (49,644)			$ (48,881)		$ (50,443)

[1] Foreign currency translation adjustments include intra-entity foreign currency transactions that are of a long-term investment nature of $4,622 and $(13,224) for the first quarter and second quarter of 2013, respectively.