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Shareholders' equity (Tables) | 12 Months Ended
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Dec. 31, 2019
Equity [Abstract] |
Schedule of components of accumulated other comprehensive income | The following shows the components of accumulated other comprehensive income or loss as of December 31, 2019 and 2018, respectively:
| Foreign Currency Translation |  | Pension Benefit |  | Total
(in thousands) |  |
Balance at January 1, 2017 | $ | (31,472 | ) |  | $ | (1,498 | ) |  | $ | (32,970 | )
Other comprehensive loss net of tax benefit (expense) of ($0) and $37, respectively | 21,273 |  |  | (944 | ) |  | 20,329 |
Amounts reclassified from accumulative other comprehensive income, net of $0 tax | 145 |  |  | — |  |  | 145 |
Balance at December 31, 2017 | (10,054 | ) |  | (2,442 | ) |  | (12,496 | )
Other comprehensive loss net of tax benefit (expense) of ($0) and $ (59), respectively | (12,911 | ) |  | 757 |  |  | (12,154 | )
Balance at December 31, 2018 | (22,965 | ) |  | (1,685 | ) |  | (24,650 | )
Other comprehensive loss net of tax benefit (expense) of ($0) and $95, respectively | 885 |  |  | (1,064 | ) |  | (179 | )
Balance at December 31, 2019 | $ | (22,080 | ) |  | $ | (2,749 | ) |  | $ | (24,829 | )

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580 + Details
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