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PROPERTY AND EQUIPMENT (Tables)
3 Months Ended
Mar. 31, 2018
Text Block [Abstract]  
Property and Equipment
Property and equipment, net, are as follows:
 
March 31, 2018
 
December 31, 2017
 
(In thousands)
Property and equipment
 

 
 

Aircraft
$
29,880

 
$
28,773

Leasehold improvements
27,158

 
27,934

Manufacturing equipment
6,537

 
6,452

Software development costs
2,132

 
2,132

Office equipment
16,149

 
16,303

Total
81,856

 
81,594

Accumulated depreciation
(40,194
)
 
(38,311
)
Property and equipment, net
$
41,662

 
$
43,283