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Supplemental Cash Flow Information
 3 Months Ended
Mar. 31, 2018
Supplemental Cash Flow Information [Abstract]  
SUPPLEMENTAL CASH FLOW INFORMATION
SUPPLEMENTAL CASH FLOW INFORMATION
The following table summarizes the changes in the components of operating assets and liabilities shown on our condensed consolidated statements of cash flows (in thousands):
 
Three Months Ended March 31,
 
2018
 
2017
Decrease (increase) in restricted cash
$
33

 
$
28

Decrease (increase) in accounts receivable
122,829

 
(55,150
)
Decrease (increase) in receivable from affiliates
754

 
12,529

Decrease (increase) in inventories
25,220

 
(2,441
)
Decrease (increase) in other current assets
(3,748
)
 
857

Decrease (increase) in other assets
805

 
(875
)
Increase (decrease) in accounts payable and accrued liabilities
(104,888
)
 
40,485

Increase (decrease) in payable to affiliates
(4,650
)
 
(9,422
)
Increase (decrease) in other noncurrent liabilities
16,142

 
1,041

 
$
52,497

 
$
(12,948
)
  
Other supplemental disclosures
At March 31, 2018, we had an accrued receivable of $9.7 million for a portion of the proceeds from the sale of our Mexican asphalt operations.
We paid cash interest of $45.8 million and $12.9 million for the three months ended March 31, 2018 and 2017, respectively.
We paid cash income taxes, net of refunds, of $1.8 million and $1.2 million for the three months ended March 31, 2018 and 2017, respectively.
We incurred liabilities for capital expenditures that had not been paid of $66.6 million and $13.9 million as of March 31, 2018 and 2017, respectively. Such amounts are not included in capital expenditures on the consolidated statements of cash flows.