Inventories, Net and Significant Suppliers (Tables)

12 Months Ended

Dec. 31, 2015

Inventories, net were as follows:



	December 31,
(In thousands)	2015			2014
Raw materials	$	29,290		$	24,763
Components	12,228			16,170
Work in process	5,671			2,622
Finished goods	78,222			56,458
Reserve for excess and obsolete inventory	(3,045		)	(2,539		)
Inventories, net	$	122,366		$	97,474

Changes in the reserve for excess and obsolete inventory were as follows:



	Year Ended December 31,
(In thousands)	2015			2014			2013
Balance at beginning of period	$	2,539		$	2,714		$	2,024
Additions charged to costs and expenses ⁽¹⁾	3,070			3,181			3,387
Sell through⁽²⁾	(1,108		)	(869		)	(365		)
Write-offs/FX effects	(1,456		)	(2,487		)	(2,332		)
Balance at end of period	$	3,045		$	2,539		$	2,714


⁽¹⁾	The additions charged to costs and expenses do not include inventory directly written-off that was scrapped during production totaling $0.3 million, $0.3 million, and $0.3 million for the years ended December 31, 2015, 2014, and 2013, respectively. These amounts are production waste and are not included in management’s reserve for excess and obsolete inventory.


⁽²⁾	These amounts represent the reversal of reserves associated with inventory items that were sold during the period.

Inventory purchases from this supplier were as follows:



	Year Ended December 31,
	2015				2014				2013
	Amount (thousands)		% of Total Inventory Purchases		Amount (thousands)		% of Total Inventory Purchases		Amount (thousands)		% of Total Inventory Purchases
Related party supplier	$	8,550	2.5	%	$	9,188	3.2	%	$	9,846	3.5	%

Total accounts payable to this supplier were as follows: