Consolidated Statements of Comprehensive Income - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Net income $ 36,951 $ 33,176 $ 35,086
Changes in derivative instrument:      
Tax benefit 36 230 14
Net change in derivative instrument (131) (831) (52)
Foreign currency translation adjustments 5,186 (834) (1,426)
Accounting Standards Update (ASU) 2018-02 reclassification of certain tax effects to retained earnings 0 (259) 0
Other comprehensive income (loss), net of tax 5,055 (1,924) (1,478)
Total comprehensive income 42,006 31,252 33,608
Interest rate swap      
Changes in derivative instrument:      
Net change in fair value (756) (1,234) 292
Foreign exchange forward      
Changes in derivative instrument:      
Net change in fair value $ 589 $ 173 $ (358)