XML 23 R11.htm IDEA: XBRL DOCUMENT
v3.23.3

INVENTORIES | 9 Months Ended
--- | ---
Sep. 30, 2023
INVENTORIES |
INVENTORIES | 4.INVENTORIES ​ Inventories consist of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | September 30, | ​ | December 31, | ​
​ | ​ | 2023 |  | 2022 |
​ | ​ | (in thousands) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Coal | ​ | $ | 67,965 | ​ | $ | 23,553 | ​
Supplies (net of reserve for obsolescence of $7,869 and $6,601, respectively) | ​ |  | 67,903 | ​ |  | 53,773 | ​
Total inventories, net | ​ | $ | 135,868 | ​ | $ | 77,326 | ​
​ During the nine months ended September 30, 2023, we recorded lower of cost or net realizable value adjustments of $14.2 million to our coal inventories as a result of lower coal sale prices and higher cost per ton primarily due to the impact of the Mettiki longwall being idle since June 2023 as a result of delayed development of a new longwall district.

X
- References No definition available. + Details
Name: | us-gaap_InventoryDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 330 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//330/tableOfContent + Details
Name: | us-gaap_InventoryDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration