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Statements of Comprehensive Income - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Consolidated Statements of Comprehensive Income (Loss) [Abstract]      
Net earnings $ 208,115 $ 173,546 $ 8,492
Foreign currency translation adjustments, net of tax $(193), $158, and ($73) for 2020, 2019, and 2018, respectively (726) 595 (274)
Total other comprehensive (loss) income (726) 595 (274)
Comprehensive income $ 207,389 $ 174,141 $ 8,218