Derivative Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2019

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative instruments, future settlement

At December 31, 2019, the Company had the following derivative instruments that settle as follows:

In thousands except average prices and notional ounces	2020		Thereafter
Provisional silver sales contracts	$	8,116	$	—
Average silver price per ounce	$	17.89	$	—
Notional ounces	453,610		—
Provisional gold sales contracts	$	16,265	$	—
Average gold price per ounce	$	1,471	$	—
Notional ounces	11,054		—
Provisional zinc sales contracts	$	10,762	$	—
Average zinc price per pound	$	1.03	$	—
Notional pounds	10,411,742		—
Provisional lead sales contracts	$	5,485	$	—
Average lead price per pound	$	0.88	$	—
Notional pounds	6,205,968		—

At December 31, 2019, the Company had the following derivative cash flow hedge instruments that settle as follows:

In thousands except average prices and notional ounces	2020
Gold put options
Average gold strike price per ounce	$	1,408
Notional ounces	96,000
Gold call options
Average gold strike price per ounce	$	1,803
Notional ounces	96,000

Fair value of the derivative instruments

The following summarizes the classification of the fair value of the derivative instruments designated as cash flow hedges:

	December 31, 2019
In thousands	Prepaid expenses and other		Accrued liabilities and other
Gold zero cost collars	$	—	$	136

The following table sets forth the pre-tax gains (losses) on derivatives designated as cash flow hedges that have been included in AOCI and the consolidated statement of comprehensive income for the years ended December 31, 2019 and 2018.

In thousands	December 31, 2018		Amount of Gain (Loss) Recognized in Other Comprehensive Income		Less: Amount of Gain (Loss) Reclassified From AOCI to Earnings	December 31, 2019
Derivative contracts designated as cash flow hedges	$	—	(136	)	—	(136	)

The following summarizes the classification of the fair value of the derivative instruments:

	December 31, 2019
In thousands	Prepaid expenses and other		Accrued liabilities and other
Provisional metal sales contracts	$	753	$	275

	December 31, 2018
In thousands	Prepaid expenses and other		Accrued liabilities and other
Provisional metal sales contracts	$	784	$	644
Zinc options	113		—
Interest rate swaps	17		—
	$	914	$	644

Gain losses on derivative instruments

The following represent mark-to-market gains (losses) on derivative instruments for the years ended December 31, 2019, 2018 and 2017 and 2018, respectively (in thousands):

		Year ended December 31,
Financial statement line	Derivative	2019			2018			2017
Revenue	Provisional metal sales contracts	$	337		$	111		$	631
Fair value adjustments, net	Zinc options	—			753			—
Fair value adjustments, net	Interest rate swaps	(178		)	(60		)	—
		$	159		$	804		$	631