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Accrued Liabilities - Components of Accrued Liabilities (Details) - USD ($)
$ in Thousands
Sep. 27, 2015
Dec. 31, 2014
Accrued Liabilities    
Accrued product related costs $ 4,208 $ 5,216
Accrued Income taxes 5,161 3,346
Accrued property and other taxes 2,607 2,547
Dividends payable 1,307 1,336
Remediation and monitoring reserves 19,085 3,918
Other accrued liabilities 10,663 8,993
Total accrued liabilities $ 43,031 $ 25,356