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Inventories (Tables)
 12 Months Ended
Dec. 31, 2015
Inventory Disclosure [Abstract]  
Schedule of Inventory, Noncurrent
Inventories consist of the following:
 
December 31,
 
2015
 
2014
 
(in thousands)
 
 
 
 
 
Refrigerant and cylinders
 
$
11,167
 
$
8,152
 
Packaged refrigerants
 
 
50,730
 
 
28,865
 
Total
 
$
61,897
 
$
37,017