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Fair Value of Financial Instruments (Tables)
 12 Months Ended
Dec. 31, 2014
Fair Value Disclosures [Abstract]  
Fair value of assets and liabilities
The following tables present the fair value and hierarchy levels for the Company's assets and liabilities, which are measured at fair value on a recurring basis as of the following period:
In thousands
Level 1
 
Level 2
 
Level 3
 
December 31, 2014
Assets
 
 
 
 
 
 
(1)
Providência Contracts
$
—

 
$
3,962

 
$
—

 
$
3,962

 
 
 
 
 
 
 
 
Liabilities
 
 
 
 
 
 
 
Providência Instruments
—

 
(560
)
 
—

 
(560
)
(1) At December 28, 2013, the Company did not have any financial assets or liabilities required to be measured at fair value.