Product Warranties (Tables)

9 Months Ended

Sep. 30, 2018

Guarantees And Product Warranties [Abstract]

Product warranty activities were as follows:

	Nine Months Ended September 30,
	2018			2017
Beginning of period	$	10,104		$	8,261
Provision for product warranties		11,448			11,941
Direct and other charges to warranty liability		(11,072	)		(10,080	)
End of period⁽¹⁾	$	10,480		$	10,122

⁽¹⁾

Short-term product warranty of $10,067 and long-term product warranty of $413 as of September 30, 2018, are included within other current liabilities and other liabilities, respectively, within the accompanying condensed consolidated balance sheet. Short-term product warranty of $9,725 and long-term product warranty of $397 as of September 30, 2017, are included within other current liabilities and other liabilities, respectively, within the accompanying condensed consolidated balance sheet.