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Income and Mining Taxes
 3 Months Ended
Mar. 31, 2016
Income Tax Disclosure [Abstract]  
INCOME AND MINING TAXES
INCOME AND MINING TAXES
The following table summarizes the components of Income and mining tax (expense) benefit for the three months ended March 31, 2016 and 2015 by significant jurisdiction:
 
Three months ended March 31,
 
2016
 
2015
In thousands
Income (loss) before tax
Tax (expense) benefit
 
Income (loss) before tax
Tax (expense) benefit
United States
$
(9,361
)
$
(532
)
 
$
(20,707
)
$
1,886

Argentina
(1,015
)
1,543

 
(696
)
(1
)
Mexico
(7,509
)
17

 
(9,672
)
(1,264
)
Bolivia
2,047

(1,570
)
 
(2,379
)
(1,407
)
Other jurisdictions
(2,452
)
(1,564
)
 
235

718

 
$
(18,290
)
$
(2,106
)
 
$
(33,219
)
$
(68
)


The Company’s effective tax rate is impacted by recurring items, such as foreign exchange rates on deferred tax balances, mining tax expense and uncertain tax position accruals, and the full valuation allowance on the deferred tax assets relating to losses in the United States and certain foreign jurisdictions. In addition, the Company's consolidated effective income tax rate is a function of the combined effective tax rates and foreign exchange rates in the jurisdictions in which it operates. Variations in the jurisdictional mix of income and loss and foreign exchange rates result in significant fluctuations in our consolidated effective tax rate.

A valuation allowance is provided for deferred tax assets for which it is more likely than not that the related tax benefits will not be realized. Each quarter, the Company analyzes its deferred tax assets and, if it is determined that the Company will not realize all or a portion of its deferred tax assets, it will record or increase a valuation allowance. Conversely, if it is determined that the Company will ultimately be more likely than not able to realize all or a portion of the related benefits for which a valuation allowance has been provided, all or a portion of the related valuation allowance will be reduced. There are a number of risk factors that could impact the Company’s ability to realize its deferred tax assets. For additional information, see Part II, Item 1A of this Report.
    
The Company or one of its subsidiaries files income tax returns in the U.S. federal jurisdiction, and various state and foreign jurisdictions. The statute of limitations remains open from 2012 forward for the U.S. federal jurisdiction and from 2008 forward for certain other foreign jurisdictions. As a result of statutes of limitation that will begin to expire within the next 12 months in various jurisdictions and possible settlements of audit-related issues with taxing authorities in various jurisdictions with respect to which none of the issues are individually significant, the Company believes that it is reasonably possible that the total amount of its net unrecognized income tax benefits will decrease between $1.0 million and $1.5 million in the next 12 months.

At March 31, 2016 and December 31, 2015, the Company had $18.9 million and $17.9 million of total gross unrecognized tax benefits, respectively. If recognized, these unrecognized tax benefits would positively impact the Company’s effective income tax rate. The Company’s continuing practice is to recognize potential interest and/or penalties related to unrecognized tax benefits as part of its income tax expense. At March 31, 2016 and December 31, 2015, the amount of accrued income-tax-related interest and penalties was $11.3 million and $9.2 million, respectively.