XML 76 R56.htm IDEA: XBRL DOCUMENT v3.3.1.900
Fair Value Measurments (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Derivative Assets Abstract    
Derivative assets $ 0 $ 104,190
Derivative Liabilities Abstract    
Derivative liabilities $ 0 $ 0