Accrued Liabilities (Tables)

6 Months Ended

Jun. 30, 2019

Other Liabilities Disclosure [Abstract]

Components of Accrued Liabilities

The components of accrued liabilities are as follows: 

	As of
	June 30,		December 31,
	2019		2018
Accrued product related costs	$	4,036	$	4,377
Accrued income taxes	6,315		6,914
Accrued property and other taxes	1,810		1,976
Accrued professional fees	2,474		3,350
Contract liabilities	2,263		1,981
Dividends payable	1,309		1,310
Remediation reserves	10,564		11,274
Other accrued liabilities	4,625		6,165
Total accrued liabilities	$	33,396	$	37,347