XML 34 R18.htm IDEA: XBRL DOCUMENT v3.20.2
Inventories
9 Months Ended
Sep. 30, 2020
Inventories  
Inventories

10. Inventories

Inventories consist of the following:

    

September 30, 

    

December 31, 

 

2020

 

2019

(In thousands)

Coal

$

56,889

$

46,815

Repair parts and supplies

 

86,507

 

84,083

$

143,396

$

130,898

The repair parts and supplies are stated net of an allowance for slow-moving and obsolete inventories of $2.5 million at September 30, 2020 and $2.2 million at December 31, 2019.