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Schedule II - Valuation and Qualifying Accounts
12 Months Ended
Dec. 31, 2021
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Schedule II - Valuation and Qualifying Accounts
SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS
(In thousands)

 Balance at Beginning of PeriodExpected Credit LossesWrite-offs, Net of Recoveries Balance at End of Period
Loss reserve:    
Year Ended December 31, 2021
$126,589 $21,852 $(20,093)$128,348 
Year Ended December 31, 2020
94,561 71,422 (39,394)126,589 
Year Ended December 31, 2019
90,775 39,270 (35,484)94,561 

 Balance at Beginning of PeriodIncreaseDecrease Balance at End of Period
Deferred income tax valuation allowance:    
Year Ended December 31, 2021
$2,875,595 $8,667 $— $2,884,262 
Year Ended December 31, 2020
2,574,056 301,539 — 2,875,595 
Year Ended December 31, 2019
2,477,703 96,353 — 2,574,056