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FAIR VALUE MEASUREMENTS (Tables)
6 Months Ended
Jun. 30, 2013
Fair Value Disclosures [Abstract]  
Summary of financial assets at fair value
The table below sets forth, by level, the Company’s financial assets that are accounted for at fair value at June 30, 2013:
 
Level 1
(In thousands)
Assets:
 
Available-for-sale investments included in Reclamation deposits
$
1,016

Estimated fair values of Company's debt
The estimated fair values of the Company’s debt with fixed interest rates are as follows:
 
Carrying Value
 
Fair Value
 
(In thousands)
December 31, 2012
$
345,408

 
$
359,753

June 30, 2013
$
336,679

 
$
360,319