Income Taxes Income Taxes 2 (Details)	3 Months Ended
	Mar. 31, 2012
Minimum [Member] | US Federal
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2008
Minimum [Member] | State of Oregon
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2007
Minimum [Member] | State of Massachusetts
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2008
Minimum [Member] | State of California
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2008
Minimum [Member] | Sweden
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2007
Minimum [Member] | United Kingdom
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2006
Minimum [Member] | Germany
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2005
Minimum [Member] | France
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2009
Maximum [Member] | US Federal
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2011
Maximum [Member] | State of Oregon
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2011
Maximum [Member] | State of Massachusetts
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2011
Maximum [Member] | State of California
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2011
Maximum [Member] | Sweden
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2011
Maximum [Member] | United Kingdom
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2011
Maximum [Member] | Germany
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2011
Maximum [Member] | France
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions	2011