Quarterly report pursuant to Section 13 or 15(d)

Consolidated Statements of Comprehensive Income (Parenthetical) (Unaudited)

v3.8.0.1
Consolidated Statements of Comprehensive Income (Parenthetical) (Unaudited) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Income Statement [Abstract]        
Depreciation $ 2,366 $ 2,878 $ 7,577 $ 8,733