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Stockholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2021
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, 2021, 2020, and 2019 respectively:
| Foreign Currency Translation |  | Pension Benefit |  | Cash Flow Hedge |  | Total
(in thousands) |  |  |
Balance at January 1, 2019 | $ | (22,965) |  |  | $ | (1,685) |  |  | $ | — |  |  | $ | (24,650) |
Other comprehensive gain/(loss), net of tax effect | 885 |  |  | (1,064) |  |  | — |  |  | (179) |
Balance at December 31, 2019 | (22,080) |  |  | (2,749) |  |  | — |  |  | (24,829) |
Other comprehensive gain/(loss), net of tax effect | 14,172 |  |  | (161) |  |  | 390 |  |  | 14,401 |
Balance at December 31, 2020 | (7,908) |  |  | (2,910) |  |  | 390 |  |  | (10,428) |
Other comprehensive gain/(loss), net of tax effect | (7,313) |  |  | 404 |  |  | (268) |  |  | (7,177) |
Balance at December 31, 2021 | $ | (15,221) |  |  | $ | (2,506) |  |  | $ | 122 |  |  | $ | (17,605) |

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 Reference 2: 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=124509347&loc=SL7669686-108580 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900 + Details
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