Quarterly report pursuant to Section 13 or 15(d)

Consolidated Statements of Comprehensive Income (Parenthetical) (Unaudited)

v3.10.0.1
Consolidated Statements of Comprehensive Income (Parenthetical) (Unaudited) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Income Statement [Abstract]        
Depreciation $ 1,689 $ 2,366 $ 5,820 $ 7,577