Discontinued Operations (Tables)

9 Months Ended

Sep. 30, 2018

Discontinued Operations and Disposal Groups [Abstract]

Schedule of Major Classes of Assets and Liabilities

The major classes of line items constituting the pretax profit or loss for the three and nine months ended September 30, 2018 and 2017 are as follows (in thousands):

	Three months ended September 30,					Nine months ended September 30,
	2018		2017			2018			2017
Revenue	$	—	$	16,043		$	12,346		$	60,441
COSTS AND EXPENSES
Costs applicable to sales(1)	—		17,365			12,269			58,979
Amortization	—		1,430			—			5,053
General and administrative	—		67			41			92
Exploration	—		23			—			23
Pre-development, reclamation, and other	—		2,931			265			3,956
OTHER INCOME (EXPENSE), NET
Interest expense, net of capitalized interest	—		(11		)	(3		)	(23		)
Other, net	—		804			(260		)	1,305
Pretax profit (loss) on discontinued operations related to major classes of pretax profit (loss)	—		(4,980		)	(492		)	(6,380		)
Pretax gain on the disposal of the discontinued operation	—		—			1,525			—
Total pretax gain or loss on discontinued operations	—		(4,980		)	1,033			(6,380		)
Income and mining tax (expense) benefit	—		56			(483		)	860
Income (loss) from discontinued operations	$	—	$	(4,924	)	$	550		$	(5,520	)

(1) Excludes amortization.