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Consolidated Statements of Comprehensive Income - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]        
Net income $ 475,549 $ 416,398 $ 1,283,055 $ 968,728
Other comprehensive income, net of tax:        
Change in value of derivatives 25 25 75 75
Other comprehensive income 25 25 75 75
Comprehensive income $ 475,574 $ 416,423 $ 1,283,130 $ 968,803