XML 22 R6.htm IDEA: XBRL DOCUMENT v3.4.0.3
Condensed Consolidated Statements of Comprehensive Income Condensed Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Statement of Comprehensive Income (Parenthetical) [Abstract]    
Unrealized gains (losses) on hedging activities - tax effect $ (35,560) $ 38,175