Inventories (Tables)

12 Months Ended

Dec. 31, 2014

Inventory Disclosure [Abstract]

Components of Inventory

Inventories are as follows (in thousands):

	December 31,
	2014		2013
Raw materials	$	31,581	$	13,953
Work-in-process	3,129		1,904
Finished goods	51,248		50,019
Inventories	85,958		65,876
Less reserve for excess and obsolete inventory	—		(2,744		)
Inventories, net	$	85,958	$	63,132

Schedule of changes in the reserve for excess and obsolete inventory

Changes in the reserve for excess and obsolete inventory are as follows (in thousands):

	Year ended December 31,
	2014			2013			2012
Balance, beginning of year	$	2,744		$	2,752		$	2,679
Charged to costs and expenses	358			1,330			882
Deductions	(3,102		)	(1,338		)	(809		)
Balance, end of the year	$	—		$	2,744		$	2,752