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Inventories, Net and Significant Suppliers - Inventory Reserves (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Schedule of Reserve for Excess and Obsolete Inventory      
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
Inventory scrapped during production $ 300 $ 300 $ 300
[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.