Product Warranties (Tables)

6 Months Ended

Jun. 30, 2014

Product Warranties Disclosures [Abstract]

Schedule of Product Warranty Liability

Changes in our product warranty obligations were as follows (in thousands):

	Six months ended June 30,
	2014			2013
Balance, beginning of period	$	1,638		$	2,492
Accruals	1,318			718
Adjustments	—			(186		)
Payments	(881		)	(862		)
Balance, end of period	$	2,075		$	2,162