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Income Taxes, Foreign Income Tax (Details)	12 Months Ended
	Dec. 31, 2017 country
Income Tax Foreign Tax Jurisdiction [Line Items]
Number of countries in which the company has operations that constitute an income tax presence	95
Threshold for foreign taxing jurisdiction to be considered very low rate (in hundredths)	25.00%
Foreign tax rate differential	10.00%
HONG KONG [Member]
Income Tax Foreign Tax Jurisdiction [Line Items]
Foreign tax rate considered to be very low tax rates	16.50%
SINGAPORE [Member]
Income Tax Foreign Tax Jurisdiction [Line Items]
Foreign tax rate considered to be very low tax rates	17.00%
UNITED KINGDOM [Member]
Income Tax Foreign Tax Jurisdiction [Line Items]
Foreign tax rate considered to be very low tax rates	19.25%
NETHERLANDS [Member]
Income Tax Foreign Tax Jurisdiction [Line Items]
Foreign tax rate considered to be very low tax rates	25.00%
CYPRUS [Member]
Income Tax Foreign Tax Jurisdiction [Line Items]
Foreign tax rate considered to be very low tax rates	12.50%
POLAND [Member]
Income Tax Foreign Tax Jurisdiction [Line Items]
Foreign tax rate considered to be very low tax rates	19.00%
Switzerland[Member]
Income Tax Foreign Tax Jurisdiction [Line Items]
Foreign tax rate considered to be very low tax rates	21.17%
Peoples Republic of CHINA [Member]
Income Tax Foreign Tax Jurisdiction [Line Items]
Foreign tax rate considered to be very low tax rates	25.00%
Other Foreign Tax Authorities [Member]
Income Tax Foreign Tax Jurisdiction [Line Items]
Foreign tax rate considered to be very low tax rates	25.00%

X

- Definition

The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can be explained by the difference between statutory income tax rates in foreign jurisdictions and the domestic federal statutory income tax rate recorded during the period.

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X

- Definition

The foreign entitys' statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The income tax rate threshold which is used to determine what constitutes a very low tax rate as attributable to foreign taxing entities.

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X

- Definition

The number of countries in which the entity has substantial enough operations to constitute and income tax presence.

+ References

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