Quarterly report pursuant to Section 13 or 15(d)

Consolidated Statements of Comprehensive Income (Loss) (Parenthetical)

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Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Statement of Comprehensive Income [Abstract]    
Unrealized gain from interest rate hedge, tax benefit (provision) $ 389 $ (48)