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Consolidated Statements of Comprehensive Income - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Statement of Comprehensive Income [Abstract]      
Net income $ 61,338 $ 37,729 $ 30,518
Other comprehensive income (loss), net of reclassification adjustments:      
Unrealized loss on interest rate swap contracts, net of tax (420) (421) (404)
Foreign currency translation adjustments 1,828 (4,320) 3,810
Other comprehensive income (loss) 1,408 (4,741) 3,406
Comprehensive income $ 62,746 $ 32,988 $ 33,924