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Income Taxes (Tables)
6 Months Ended
Jun. 30, 2021
Income Tax Disclosure [Abstract]  
Schedule of Effective Income Tax Rate Reconciliation
Three Months Ended June 30,Six Months Ended June 30,
thousands except percentages20212020$ Change20212020$ Change
Income tax expense (benefit)$(1,550)$(6,844)$5,294 $(22,755)$(40,944)$18,189 
Income (loss) before income taxes2,067 (40,947)43,014 (87,297)(200,129)112,832 
Effective tax rateNM16.7 %NM26.1 %20.5 %5.6 %