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.

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Tax year that remains open to examination under enacted tax laws, in CCYY format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319

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- Definition

Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 25
-Paragraph 10
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 25
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=121573983&loc=d3e28446-109314

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Period Type:	duration

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Income Taxes (Details 5) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
Income Taxes (Details 5) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Income Tax Examination [Line Items]
Discrete tax expense	$ 18.3	$ 24.4
United States Federal \| Minimum
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions			2017
United States Federal \| Maximum
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions			2019
State of California \| Minimum
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions			2015
State of California \| Maximum
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions			2019
MASSACHUSETTS \| Minimum
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions			2016
MASSACHUSETTS \| Maximum
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions			2019
OREGON \| Minimum
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions			2017
OREGON \| Maximum
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions			2019
SWEDEN \| Minimum
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions			2012
SWEDEN \| Maximum
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions			2019
UNITED KINGDOM \| Minimum
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions			2016
UNITED KINGDOM \| Maximum
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions			2019
BELGIUM \| Minimum
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions			2012
BELGIUM \| Maximum
Income Tax Examination [Line Items]
Tax years open to examination by major taxing jurisdictions			2019
Transition [Member]
Income Tax Examination [Line Items]
Discrete tax expense			$ 37.1	$ 37.1