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Accrued Liabilities | 6 Months Ended
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Jun. 30, 2018
Other Liabilities Disclosure [Abstract] |
Accrued Liabilities | Accrued Liabilities The components of accrued liabilities are as follows:
| As of
| June 30, |  | December 31,
| 2018 |  | 2017
Accrued product related costs | $ | 4,716 |  |  | $ | 5,297 |
Accrued income taxes | 8,512 |  |  | 5,475 |
Accrued property and other taxes | 2,080 |  |  | 997 |
Accrued professional fees | 3,055 |  |  | 2,228 |
Contract liabilities | 2,664 |  |  | 1,595 |
Dividends payable | 1,323 |  |  | 1,318 |
Remediation reserves | 14,570 |  |  | 17,067 |
Other accrued liabilities | 6,885 |  |  | 7,367 |
Total accrued liabilities | $ | 43,805 |  |  | $ | 41,344 |

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- Definition The entire disclosure for other liabilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20,24) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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