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VALUATION AND QUALIFYING ACCOUNTS
12 Months Ended
Dec. 31, 2021
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
VALUATION AND QUALIFYING ACCOUNTS
SCHEDULE II
VALUATION AND QUALIFYING ACCOUNTS
December 31, 2021
(In thousands)
Additions
DescriptionBalance at beginning of periodCharged to costs and expensesCharged to other accountsDeductionsBalance at end of period
Deferred Tax Valuation Allowance:
Year ended December 31, 2019$336,417 $60,376 (1)$13,790 (2)$(1,680)$408,903 
Year ended December 31, 2020$408,903 $(27,913)(3)$— $— $380,990 
Year ended December 31, 2021$380,990 $(13,027)(4)$— $— $367,963 

(1) Additional valuation allowance for federal and state net operating losses.

(2) Additional valuation allowance charged to accumulated deficit upon the adoption of ASC 842.

(3) Reduction of valuation allowance for federal and state net operating losses.

(4) Reduction of valuation allowance for federal and state net operating losses and credits.