Annual report pursuant to Section 13 and 15(d)

Schedule II - Valuation and Qualifying Accounts (Notes)

v3.8.0.1
Schedule II - Valuation and Qualifying Accounts (Notes)
12 Months Ended
Dec. 31, 2017
Valuation and Qualifying Accounts [Abstract]  
Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]
Col. A
 
Col. B
 
Col. C
 
Col. D
 
Col. E
 
 
Balance at
Beginning
of Period
 
Charged to
Costs and
Expenses
 
Charged to
Other Accounts
Described
 
Deductions
-Described
 
Balance at
End of
Period
Year ended December 31, 2017
 
 
 
 
 
 
 
 
 
 
   Allowance for doubtful accounts
 
1,309

 
1,814

 

 
581

(2) 
2,542

   Allowance for revenue adjustments (1)
 
405

 
3,055

 

 
2,996

(3) 
464

   Income tax valuation
 
282

 
78

 

 

 
360

 
 
1,996

 
4,947

 

 
3,577

 
3,366

Year ended December 31, 2016
 
 
 
 
 
 
 
 
 
 
   Allowance for doubtful accounts
 
$
1,310

 
$
258

 
$

 
$
259

(2) 
$
1,309

   Allowance for revenue adjustments (1)

1,095

 
2,020

 

 
2,710

(3) 
405

   Income tax valuation
 
284

 
(2
)
 

 

 
282

 
 
2,689

 
2,276

 

 
2,969

 
1,996

Year ended December 31, 2015
 
 
 
 
 
 
 
 
 
 
   Allowance for doubtful accounts
 
$
2,155

 
$
33

 
$

 
$
878

(2) 
$
1,310

   Allowance for revenue adjustments (1)

408

 
4,793

 

 
4,106

(3) 
1,095

   Income tax valuation
 
273

 
11

 

 

 
284

 
 
2,836

 
4,837

 

 
4,984

 
2,689



(1) Represents an allowance for adjustments to accounts receivable due to disputed rates, accessorial charges and other aspects of previously billed shipments.
(2) Represents uncollectible accounts written off, net of recoveries
(3) Represents adjustments to billed accounts receivable