XML 82 R49.htm IDEA: XBRL DOCUMENT v3.2.0.727
Derivatives - Summary of (Losses) Gains on Derivatives Not Designated as Hedging Instruments (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]        
Net (loss) recognized in income $ (108) $ (204) $ (10) $ (98)