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Income taxes (Tables) | 12 Months Ended
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Dec. 31, 2020
Income Tax Disclosure [Abstract] |
Components of Provision for Income Taxes from Continuing Operations | The following table summarizes the components of the provision for income taxes from continuing operations:
| 2020 |  | 2019 |  | 2018
Current: |  |  |  |  |
Federal | $ | 11,148 |  |  | $ | 19,374 |  |  | $ | (1,525) |
State | 9,644 |  |  | 8,220 |  |  | 1,432 |
Non-U.S. | 35,042 |  |  | 23,690 |  |  | 29,353 |
Deferred: |  |  |  |  |
Federal | (9,475) |  |  | (2,041) |  |  | (5,124) |
State | (13,734) |  |  | (28,277) |  |  | (5,114) |
Non-U.S. | (10,694) |  |  | (143,044) |  |  | 4,174 |
| $ | 21,931 |  |  | $ | (122,078) |  |  | $ | 23,196 |
Summaries of U.S. and Non-U.S. Components of Income from Continuing Operations Before Taxes | The following table summarizes the U.S. and non-U.S. components of income from continuing operations before taxes:
| 2020 |  | 2019 |  | 2018
U.S. | $ | 233,034 |  |  | $ | 89,021 |  |  | $ | 37,201 |
Non-U.S. | 124,698 |  |  | 250,882 |  |  | 182,427 |
| $ | 357,732 |  |  | $ | 339,903 |  |  | $ | 219,628 |
Reconciliations Between Statutory Federal Income Tax Rate and Effective Income Tax Rate | Reconciliations between the statutory federal income tax rate and the effective income tax rate are as follows:
| 2020 |  | 2019 |  | 2018
Federal statutory rate | 21.0 | % |  | 21.0 | % |  | 21.0 | %
Tax effect of international items | (5.3) |  |  | (11.3) |  |  | (3.3) |
Impacts of the TCJA (1) | — |  |  | — |  |  | (1.0) |
Foreign Merger - Deferred Taxes (2) | — |  |  | (38.0) |  |  | — |
Excess tax benefits related to share-based compensation | (4.9) |  |  | (4.5) |  |  | (7.2) |
State taxes, net of federal benefit | (0.3) |  |  | (4.9) |  |  | (0.1) |
Uncertain tax contingencies | (0.5) |  |  | — |  |  | (0.4) |
Contingent consideration | (2.2) |  |  | 3.4 |  |  | 5.3 |
Intellectual property impairment charge | (1.2) |  |  | — |  |  | (2.0) |
Research and development tax credit | (1.1) |  |  | (1.1) |  |  | (1.6) |
Other, net | 0.6 |  |  | (0.5) |  |  | (0.1) |
| 6.1 | % |  | (35.9) | % |  | 10.6 | %
(1)U.S. tax legislation commonly referred to as the Tax Cuts and Jobs Act (the "TCJA") was enacted on December 22, 2017. The legislation significantly changed U.S. tax law by, among other things, reducing the corporate income tax rate and imposing a one-time repatriation tax on undistributed post-1986 non-U.S. subsidiary earnings and profits. This legislation required significant one-time adjustments to our consolidated tax provision. (2)During 2019, we recognized a discrete tax benefit of $129.0 million resulting from a non-U.S. legal entity restructuring that eliminated the requirement to provide for withholding taxes on the future repatriation of certain non-permanently reinvested earnings.
Deferred Tax Assets and Liabilities | The following table summarizes significant components of our deferred tax assets and liabilities at December 31, 2020 and 2019:
| 2020 |  | 2019
Deferred tax assets: |  |  |
Tax loss and credit carryforwards | $ | 180,782 |  |  | $ | 174,997 |
Lease assets | 25,429 |  |  | 28,577 |
Pension | 12,237 |  |  | 14,971 |
Reserves and accruals | 72,931 |  |  | 60,799 |
Other | 7,996 |  |  | 3,207 |
Less: valuation allowances | (155,008) |  |  | (119,233) |
Total deferred tax assets | 144,367 |  |  | 163,318 |
Deferred tax liabilities: |  |  |
Property, plant and equipment | 25,633 |  |  | 23,053 |
Intangibles — stock acquisitions | 476,150 |  |  | 441,079 |
Unremitted non-U.S. earnings | 91,539 |  |  | 81,967 |
Lease liabilities | 25,429 |  |  | 28,577 |
Other | 2,221 |  |  | 22,628 |
Total deferred tax liabilities | 620,972 |  |  | 597,304 |
Net deferred tax liability | $ | (476,605) |  |  | $ | (433,986) |
Uncertain Tax Positions for Liabilities Associated with Unrecognized Tax Benefits | Uncertain Tax Positions: The following table is a reconciliation of the beginning and ending balances for liabilities associated with unrecognized tax benefits for the years ended December 31, 2020, 2019 and 2018:
| 2020 |  | 2019 |  | 2018
Balance at January 1 | $ | 7,561 |  |  | $ | 8,106 |  |  | $ | 9,336 |
Increase in unrecognized tax benefits related to prior years | 1,286 |  |  | 351 |  |  | — |
Decrease in unrecognized tax benefits related to prior years | — |  |  | (201) |  |  | — |
Unrecognized tax benefits related to the current year | — |  |  | 1,237 |  |  | 899 |
Reductions in unrecognized tax benefits due to lapse of applicable statute of limitations | (1,864) |  |  | (1,881) |  |  | (1,955) |
Increase (decrease) in unrecognized tax benefits due to foreign currency translation | 247 |  |  | (51) |  |  | (174) |
Balance at December 31 | $ | 7,230 |  |  | $ | 7,561 |  |  | $ | 8,106 |
Examinations by Major Tax Jurisdictions | The taxable years for which the applicable statute of limitations remains open by major tax jurisdictions are as follows:
| Beginning |  | Ending
U.S. | 2017 |  | 2020
Canada | 2016 |  | 2020
China | 2015 |  | 2020
Czech Republic | 2017 |  | 2020
France | 2018 |  | 2020
Germany | 2011 |  | 2020
India | 2002 |  | 2020
Ireland | 2016 |  | 2020
Italy | 2016 |  | 2020
Malaysia | 2016 |  | 2020
Singapore | 2016 |  | 2020
Schedule of Cash Flow, Supplemental Disclosures, Income Tax | Supplemental cash flow information
| Year Ended December 31,
| 2020 |  | 2019 |  | 2018
Income taxes paid, net of refunds | $ | 77,163 |  |  | $ | 73,632 |  |  | $ | 65,605 |

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