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Income taxes (Foreign rate differential by tax jurisdiction) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Income Tax Disclosure [Line Items] |  |  |
Pre-tax income (loss) | $ (134,732) | $ 1,333,046 | $ 1,158,620
Local statutory tax rate | 12.50% | 12.50% | 12.50%
Tax variance as a result of global activities | $ (390) | $ 1,083 | $ (803)
Permanent differences | (179,886) | 7,596 | (7,687)
Loss from continuing operations before income tax | (314,618) | 1,340,642 | 1,150,933
Ireland |  |  |
Income Tax Disclosure [Line Items] |  |  |
Pre-tax income (loss) | $ (160,739) | $ 1,324,100 | $ 1,163,574
Local statutory tax rate | 12.50% | 12.50% | 12.50%
Variance to Irish statutory tax rate of 12.5% | 0.00% | 0.00% | 0.00%
Tax variance as a result of global activities | $ 0 | $ 0 | $ 0
United States |  |  |
Income Tax Disclosure [Line Items] |  |  |
Pre-tax income (loss) | $ 101,339 | $ (30,041) | $ (85)
Local statutory tax rate | 21.00% | 21.00% | 22.00%
Variance to Irish statutory tax rate of 12.5% | 8.50% | 8.50% | 9.50%
Tax variance as a result of global activities | $ 8,614 | $ (2,553) | $ (8)
The Netherlands |  |  |
Income Tax Disclosure [Line Items] |  |  |
Pre-tax income (loss) | $ (45,954) | $ 30,656 | $ 6,108
Local statutory tax rate | 25.00% | 25.00% | 25.00%
Variance to Irish statutory tax rate of 12.5% | 12.50% | 12.50% | 12.50%
Tax variance as a result of global activities | $ (5,744) | $ 3,832 | $ 764
Other |  |  |
Income Tax Disclosure [Line Items] |  |  |
Pre-tax income (loss) | $ (29,378) | $ 8,331 | $ (10,977)
Local statutory tax rate | 23.60% | 10.10% | 26.70%
Variance to Irish statutory tax rate of 12.5% | 11.10% | (2.40%) | 14.20%
Tax variance as a result of global activities | $ (3,260) | $ (196) | $ (1,559)

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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 6.I.Fact.4) -URI http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 6.I.Fact.4) -URI http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817 + Details
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