Product Warranties (Tables)

3 Months Ended

Mar. 31, 2018

Guarantees and Product Warranties [Abstract]

Product warranty activities were as follows:


	Three Months Ended March 31,
	2018			2017
Beginning of period	$	10,104		$	8,261
Provision for product warranties		5,184			3,014
Direct and other charges to warranty liability		(4,073	)		(2,790	)

End of period⁽¹⁾	$	11,215		$	8,485

⁽¹⁾

Short-term product warranty of $10,856 and long-term product warranty of $359 as of March 31, 2018, are included within other current liabilities and other liabilities, respectively, within the accompanying condensed consolidated balance sheet. Short-term product warranty of $8,071 and long-term product warranty of $414 as of March 31, 2017, are included within other current liabilities and other liabilities, respectively, within the accompanying condensed consolidated balance sheet.