v3.7.0.1
INCOME TAXES (Tables)
3 Months Ended
Mar. 31, 2017
Income Tax Disclosure [Abstract]  
Schedule of Valuation Allowance
A summary of our valuation allowance activity is as follows (in thousands):
 
 
Three Months Ended March 31,
 
 
2017
 
2016
Valuation allowance, beginning of period
 
$
326,097

 
$
300,601

Additions
 
4,425

 
8,004

Valuation allowance, end of period
 
$
330,522

 
$
308,605