Income Taxes (Details 2)	6 Months Ended
	Jun. 30, 2015
US Federal | Minimum
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2012
US Federal | Maximum
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2014
State of Oregon | Minimum
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2012
State of Oregon | Maximum
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2014
State of Massachusetts | Minimum
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2011
State of Massachusetts | Maximum
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2014
State of California | Minimum
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2012
State of California | Maximum
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2014
Sweden | Minimum
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2011
Sweden | Maximum
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2014
United Kingdom | Minimum
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2011
United Kingdom | Maximum
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2014
Belgium | Minimum
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2011
Belgium | Maximum
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2014