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EXHIBITS AND FINANCIAL STATEMENT SCHEDULE - Valuation and Qualifying Accounts (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]      
Balance at beginning of year $ 1,106,900 $ 1,251,705 $ 1,091,310
Amount charged against operating revenue 6,183,299 6,069,245 5,921,519
Accounts receivable contractual adjustments and write-offs (net of recoveries) (6,215,054) (6,214,050) (5,761,124)
Balance at end of year $ 1,075,145 $ 1,106,900 $ 1,251,705