Inventory, net
12 Months Ended
Dec. 31, 2016
Inventory Disclosure [Abstract]  
Inventory, net
4. Inventory, net

Inventory, net of reserves, consisted of the following amounts (in thousands):
 
December 31,
 
2016
 
2015
Parts and supplies
$
104,897

 
$
133,558

Work in progress
32,167

 
41,184

Finished goods
20,452

 
33,339

Inventory, net
$
157,516

 
$
208,081



During the years ended December 31, 2016, 2015 and 2014 we recorded $0.8 million, $15.6 million and $3.2 million, respectively, in inventory write-downs and reserves for inventory which was obsolete or slow moving. As of December 31, 2016 and 2015, we had inventory reserves of $12.9 million and $14.5 million, respectively. As discussed further in Note 14, during the year ended December 31, 2015, we recorded restructuring and other charges of $8.7 million related to inventory write-downs associated with restructuring activities.