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Supplemental Cash Flow Information (Tables)
12 Months Ended
Dec. 31, 2018
Supplemental Cash Flow Elements [Abstract]  
Supplemental cash flow information
Supplemental cash flow information was as follows:  
 
 
Years ended December 31,
 
 
2018
 
2017
 
2016
 
 
(In thousands)
Interest paid
 
$
161,826

 
129,559

 
143,990

Income taxes paid
 
22,965

 
13,692

 
14,062

Changes in accounts payable related to purchases of revenue earning equipment
 
114,862

 
80,781

 
(142,256
)
Operating and revenue earning equipment acquired under capital leases
 
10,701

 
7,057

 
1,230



Cash and cash equivalents
The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the Consolidated Balance Sheets that sum to the total of the same such amounts shown in the Consolidated Statements of Cash Flows.
 
 
December 31,
 
 
2018
 
2017
 
 
(In thousands)
Cash and cash equivalents
 
$
68,111

 
78,348

Restricted cash included in prepaid expenses and other current assets
 

 
4,674

Total cash, cash equivalents, and restricted cash shown in the statement of cash flows
 
$
68,111

 
83,022

Restrictions on cash and cash equivalents
The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the Consolidated Balance Sheets that sum to the total of the same such amounts shown in the Consolidated Statements of Cash Flows.
 
 
December 31,
 
 
2018
 
2017
 
 
(In thousands)
Cash and cash equivalents
 
$
68,111

 
78,348

Restricted cash included in prepaid expenses and other current assets
 

 
4,674

Total cash, cash equivalents, and restricted cash shown in the statement of cash flows
 
$
68,111

 
83,022