Annual report pursuant to Section 13 and 15(d)

SUPPLEMENTAL INFORMATION FOR STATEMENTS OF CASH FLOWS (Tables)

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SUPPLEMENTAL INFORMATION FOR STATEMENTS OF CASH FLOWS (Tables)
12 Months Ended
Dec. 31, 2018
Supplemental Cash Flow Elements [Abstract]  
Schedule of Supplemental Cash Flow Disclosures
Supplemental cash flow information for the years ended December 31, 2018, 2017 and 2016 was as follows (in thousands):
 
 
2018
 
2017
 
2016
Income taxes paid, net of refunds
 
$
283

 
$
426

 
$
(5,978
)
Interest paid to others, excluding capitalized interest
 
13,581

 
15,315

 
15,268

Schedule of non-cash investing and financing activities:
 
 
 
 
 
 
Contribution of notes payable as additional capital into Aeróleo
 

 

 
6,349

Settlement of accrued contingent liabilities through installment obligations
 

 
386

 
2,486