Product Warranty Liabilities (Tables)

6 Months Ended

Jun. 30, 2017

Guarantees [Abstract]

Summary of Activity in Product Warranty Liabilities

The following table summarizes the activity in the Company’s product warranty liabilities:

	2017			2016
Reserve at beginning of year	$	10,634		$	12,339
Additions	4,483			4,792
Payments	(4,403		)	(5,121		)
Reserve at June 30	$	10,714		$	12,010