Environmental Liabilities - Analysis of Activity (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 28, 2019	Dec. 31, 2018
Accrual for Environmental Loss Contingencies [Roll Forward]
Balance, December 31, 2018	$ 160,654
Increase in liabilities	928
Payments	(2,547)
Foreign currency adjustments	464
Balance, September 28, 2019	159,499
Less: Current portion	(11,445)	$ (11,310)
Long-term environmental liabilities	$ 148,054	$ 149,344

Total costs accrued as of the balance sheet date for environmental loss contingencies.

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