Income Taxes (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	Aug. 31, 2007	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Taxes [Line Items]
Federal statutory rate		35.00%	35.00%	35.00%
Foreign Earnings Repatriated			$ 740,900
Foreign Withholding Tax			28,100
Income Tax Expense (Benefit) repatriation		$ 0	(4,164)	$ 167,115
income tax benefit, related to worthless stock deduction		375,300
Undistributed earnings of foreign subsidiaries		187,400
unrecognized tax benefits offset against deferred tax asset			667,000
Tax Credit Carryforward, Deferred Tax Asset		59,300
Alternative minimum tax credits		19,800
Tax Credit Carryforward, Amount		$ 173,100
tax benefit as result of repatriation			$ 8,600
Impact of tax holiday on diluted earnings per share		$ 0.14	$ 0.50	$ 0.18
Foreign Income Tax Paid, Net		$ 14,500
Debt Instrument, Interest Rate, Stated Percentage		3.25%
Tax credit carryforward expiration		2016 through 2034
Debt Instruments, Discount Rate	8.50%	8.50%
Liability for Uncertain Tax Positions, Noncurrent		$ 211,000
Federal [Member]
Income Taxes [Line Items]
Net operating loss carryforwards		8,900
Federal research tax credits		28,800
capital loss carryforward		3,000,000
State [Member]
Income Taxes [Line Items]
Net operating loss carryforwards		1,600,000
Federal research tax credits		1,700
capital loss carryforward		3,100,000
Foreign [Member]
Income Taxes [Line Items]
Net operating loss carryforwards		$ 20,200
Tax credit carryforward expiration		2024
Federal And State [Member]
Income Taxes [Line Items]
Operating Loss Carryforwards, Date		2016 through 2034