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Accrued Liabilities | 12 Months Ended
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Dec. 31, 2019
Payables and Accruals [Abstract] |
Accrued Liabilities | Accrued Liabilities Accrued liabilities consisted of the following at December 31 (in thousands):
| 2019 |  | 2018
Accrued salaries, benefits and bonus | $ | 24,737 |  |  | $ | 19,063 |
Accrued professional, consulting and lobbying fees | 3,235 |  |  | 4,894 |
Accrued warranty expense | 1,476 |  |  | 898 |
Accrued income and other taxes | 3,362 |  |  | 4,167 |
Other accrued expenses | 12,191 |  |  | 12,070 |
Accrued liabilities | $ | 45,001 |  |  | $ | 41,092 |

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- Definition The entire disclosure for accounts payable and accrued liabilities at the end of the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(a),20,24) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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