Inventories

12 Months Ended

Dec. 31, 2020

Inventory Disclosure [Abstract]

Inventories

Inventories

Inventories as of December 31, 2020 and December 31, 2019 consisted of the following:

	December 31,
	2020		2019
	(Dollars in millions)
Materials and supplies	$	102.6	$	116.3
Raw coal	70.5		85.1
Saleable coal	88.5		130.1
Inventories	$	261.6	$	331.5

Materials and supplies inventories presented above have been shown net of reserves of $10.4 million and $7.9 million as of December 31, 2020 and 2019, respectively. The coal inventories presented above include net realizable value adjustments of $7.6 million and $8.3 million as of December 31, 2020 and 2019, respectively.