XML 65 R51.htm IDEA: XBRL DOCUMENT v3.3.1.900
Derivative Instruments - Derivative Instruments - Fair value derivative instruments (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]    
RMB warrants (other current liabilities) $ 4 $ 55
Kinross calls (other current liabilities)