Income Taxes Text (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income (Loss) from Continuing Operations before Income Taxes, Domestic	$ (20,057,000)	$ 62,021,000	$ 88,638,000
Income (Loss) from Continuing Operations before Income Taxes, Foreign	(28,138,000)	(80,930,000)	6,304,000
(Loss) income before provision for income taxes	(48,195,000)	(18,909,000)	94,942,000
Current Income Tax Expense (Benefit)	26,830,000	88,092,000	153,624,000
Deferred income taxes	(11,106,000)	(18,055,000)	(7,651,000)
Provision for income taxes	15,724,000	70,037,000	145,973,000
Effective Income Tax Rate Reconciliation, Amount [Abstract]
U.S. federal income tax (benefit) provision at statutory rate	(16,868,000)	(6,618,000)	33,230,000
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount	4,815,000	14,299,000	10,565,000
Effective Income Tax Rate Reconciliation, Disposition of Asset, Amount			17,404,000
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount	(10,051,000)	(5,361,000)	3,965,000
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	23,515,000	24,404,000	29,249,000
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount	178,000	837,000	(487,000)
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	13,098,000	35,158,000	31,011,000
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Amount	6,503,000	9,000,000	14,641,000
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount	(4,693,000)	(4,650,000)	0
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount	(773,000)	2,968,000	6,395,000
Components of Deferred Tax Assets and Liabilities [Abstract]
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals	32,379,000	65,356,000
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	6,911,000	13,462,000
Deferred Tax Assets, Operating Loss Carryforwards	221,674,000	152,271,000
Deferred Tax Assets, Goodwill and Intangible Assets	11,910,000	30,039,000
Deferred Tax Assets, Investments	1,441,000	3,730,000
Deferred Tax Assets, Unrealized Currency Losses	5,011,000	0
Deferred Tax Assets, Other	2,610,000	1,692,000
Deferred Tax Assets, Gross	281,936,000	266,550,000
Deferred Tax Assets, Valuation Allowance	(205,486,000)	(173,577,000)
Deferred Tax Assets, Net of Valuation Allowance	76,450,000	92,973,000
Deferred Tax Liabilities, Unrealized Currency Transaction Gains	0	(3,034,000)
Deferred Tax Liabilities, Prepaid Expenses	(1,455,000)	(1,078,000)
Deferred Tax Liabilities, Property, Plant and Equipment	(25,159,000)	(19,239,000)
Deferred Tax Liabilities, Tax Deferred Income	(25,013,000)	(64,154,000)
Deferred Tax Liabilities, Gross	(51,627,000)	(87,505,000)
Deferred Tax Assets, Net	24,823,000	5,468,000
Accumulated deficit	(921,960,000)	(848,870,000)
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount		9,600,000
Deferred Tax Assets, Operating Loss Carryforwards, Domestic	121,200,000
Deferred Tax Assets, Operating Loss Carryforwards, State and Local	270,500,000
Deferred Tax Assets, Operating Loss Carryforwards, Foreign	714,900,000
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits, beginning balance	110,305,000	85,481,000	55,127,000
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions	5,489,000	10,494,000	602,000
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions	(27,875,000)	(2,103,000)	(790,000)
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions	17,348,000	14,565,000	29,465,000
Unrecognized Tax Benefits, Decrease Resulting from Foreign Currency Translation	(6,946,000)
Unrecognized Tax Benefits, Increase Resulting from Foreign Currency Translation		1,868,000	1,077,000
Unrecognized tax benefits, ending balance	98,321,000	110,305,000	85,481,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	72,300,000	80,000,000	39,300,000
Income Tax Examination, Penalties and Interest Expense	1,100,000	3,300,000	2,300,000
Income Tax Examination, Penalties and Interest Accrued	5,700,000	5,300,000
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations	21,000,000
Increase (Decrease) in Income Taxes	24,400,000
Potential Change in Unrecognized Tax Benefits	15,600,000
Undistributed Earnings of Foreign Subsidiaries	271,100,000
Current portion of unamortized tax effects on intercompany transactions	14,193,000	28,502,000
Prepaid Expenses and Other Current Assets [Member]
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Current portion of unamortized tax effects on intercompany transactions	14,193,000	28,500,000
Other Assets [Member]
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Current portion of unamortized tax effects on intercompany transactions		20,400,000
Future amortization through 2015 [Member]
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Current portion of unamortized tax effects on intercompany transactions	14,200,000
Domestic Tax Authority [Member]
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Increase (Decrease) in Income Taxes	7,700,000
Foreign Tax Authority [Member]
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Increase (Decrease) in Income Taxes	16,700,000
UNITED STATES
Current Income Tax Expense (Benefit)	(3,518,000)	22,321,000	41,551,000
Deferred income taxes	(5,132,000)	4,675,000	(2,977,000)
State and Local Jurisdiction [Member]
Current Income Tax Expense (Benefit)	69,000	1,693,000	4,778,000
Deferred income taxes	(742,000)	(5,687,000)	(236,000)
International [Domain]
Current Income Tax Expense (Benefit)	30,279,000	64,078,000	107,295,000
Deferred income taxes	$ (5,232,000)	$ (17,043,000)	$ (4,438,000)