Other, Net (Tables)

6 Months Ended

Jun. 30, 2017

Other Income and Expenses [Abstract]

Schedule of Other Operating Cost and Expense, by Component

Other, net consists of the following:

	Three months ended June 30,						Six months ended June 30,
In thousands	2017			2016			2017			2016
Foreign exchange gain (loss)	$	1,000		$	(5,656	)	$	2,442		$	(5,819	)
Gain (loss) on sale of assets and investments	513			3,126			(1,552		)	4,211
Gain on sale of the Joaquin project	—			—			21,138			—
Gain on repurchase of the Rochester royalty obligation	2,332			—			2,332			—
Impairment of equity securities	(305		)	(20		)	(426		)	(20		)
Other	596			693			1,341			1,085
Other, net	$	4,136		$	(1,857	)	$	25,275		$	(543	)