Commitments and Contingent Liabilities (Tables)

3 Months Ended

Mar. 31, 2019

Commitments and Contingencies Disclosure [Abstract]

Schedule of Product Warranty Liability

The following table sets forth the Company’s product warranty accrual:

	Warranty Liability
Balance as of December 31, 2018	$	2,057
Additions to warranty liability	255
Warranty liability utilized	(597)
Balance as of March 31, 2019	$	1,715

Schedule Of Future Payments Of Legal Settlements

The expected payments under the UPRR Settlement Agreement for the remainder of the year ending December 31, 2019 and thereafter are as follows:

Year Ending December 31,
Remainder of 2019	$	8,000
2020	8,000
2021	8,000
2022	8,000
2023	8,000
2024	8,000
Total	$	48,000

Environmental Loss Contingencies

The following table sets forth the Company’s environmental obligation:

	Environmental liability
Balance as of December 31, 2018	$	6,128
Additions to environmental obligations	2
Environmental obligations utilized	(20)
Balance as of March 31, 2019	$	6,110