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INCOME TAXES (Reconciliation of the Provision for Income Taxes to the Amounts Computed at the Federal Statutory Rate) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Reconciliation of provision for income taxes      
Federal income taxes at statutory rate $ 584,202 $ 474,681 $ 375,942
State income taxes, net of federal tax benefit 90,360 76,810 54,739
Excess tax benefit from share-based compensation (35,202) (16,918) (25,992)
Benefit from investment in renewable energy tax credits (18,592) (17,904) (875)
Other items, net (3,539) (2,566) (4,527)
Provision for income taxes $ 617,229 $ 514,103 $ 399,287