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The estimated tax impact (foreign withholding and federal income tax) that would be generated if undistributed earnings as of the balance sheet date were to be repatriated to the domestic country.

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Expiration date of each operating loss carryforward included in operating loss carryforward, in CCYY-MM-DD format.

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The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Amount of undistributed earnings of foreign subsidiaries intended to be permanently reinvested outside the country of domicile.

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Income Taxes (Net operating loss carryforwards) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Loss Carryforwards and other details [Abstract]
Undistributed Earnings of Foreign Subsidiaries	$ 721,700,000
United States [Member]
Loss Carryforwards and other details [Abstract]
Operating loss carryforwards	317,841,000	342,770,000
State Income Taxes [Member]
Loss Carryforwards and other details [Abstract]
Operating loss carryforwards	173,756,000	197,618,000
Non-U.S. [Member]
Loss Carryforwards and other details [Abstract]
Operating loss carryforwards	4,962,000	38,337,000
Repatriation Of Earnings Estimated Tax Impact	21,500,000
U.S. [Member]
Loss Carryforwards and other details [Abstract]
Tax Credit Carryforward, Amount	8,100,000
KOREA, REPUBLIC OF
Loss Carryforwards and other details [Abstract]
Tax Credit Carryforward, Amount	$ 11,100,000
Minimum [Member] \| United States [Member]
Loss Carryforwards and other details [Abstract]
Operating loss carryforwards, expiration dates	Dec. 31, 2021
Minimum [Member] \| State Income Taxes [Member]
Loss Carryforwards and other details [Abstract]
Operating loss carryforwards, expiration dates	Dec. 31, 2014
Minimum [Member] \| Non-U.S. [Member]
Loss Carryforwards and other details [Abstract]
Operating loss carryforwards, expiration dates	Dec. 31, 2014
Maximum [Member] \| United States [Member]
Loss Carryforwards and other details [Abstract]
Operating loss carryforwards, expiration dates	Dec. 31, 2033
Maximum [Member] \| State Income Taxes [Member]
Loss Carryforwards and other details [Abstract]
Operating loss carryforwards, expiration dates	Dec. 31, 2031
Maximum [Member] \| Non-U.S. [Member]
Loss Carryforwards and other details [Abstract]
Operating loss carryforwards, expiration dates	Dec. 31, 2022