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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
 6 Months Ended
Jun. 30, 2018
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES  
Schedule of restricted cash and cash equivalents

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

June 30, 

 

December 31, 

 

June 30, 

 

December 31, 

 

 

    

2018

    

2017

 

2017

 

2016

 

Cash and cash equivalents

 

$

269,996

 

$

174,479

 

$

147,153

 

$

133,400

 

Restricted cash - current

 

 

 —

 

 

7,234

 

 

8,335

 

 

8,242

 

Restricted cash - noncurrent

 

 

315

 

 

23,233

 

 

25,507

 

 

27,426

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cash, cash equivalents and restricted cash

 

$

270,311

 

$

204,946

 

$

180,995

 

$

169,068