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Consolidated Statements of Comprehensive Income - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]    
Net income $ 203,711 $ 166,757
Other comprehensive income, net of tax:    
Change in value of derivatives 25 25
Other comprehensive income 25 25
Comprehensive income (loss) $ 203,736 $ 166,782