XML 26 R6.htm IDEA: XBRL DOCUMENT v3.7.0.1
Consolidated Statement of Comprehensive Income (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Statement of Comprehensive Income [Abstract]    
Changes in fair value of hedge positions, tax $ (2) $ (50)