Commitments and Contingent Liabilities (Tables)

6 Months Ended

Jun. 30, 2018

Commitments and Contingencies Disclosure [Abstract]

Schedule of Product Warranty Liability

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

	Warranty Liability
Balance at December 31, 2017	$	8,682
Additions to warranty liability	518
Warranty liability utilized	(495)
Balance at June 30, 2018	$	8,705

Environmental Loss Contingencies

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

	Environmental liability
Balance at December 31, 2017	$	6,144
Additions to environmental obligations	51
Environmental obligations utilized	(51)
Balance at June 30, 2018	$	6,144