VALUATION AND QUALIFYING ACCOUNTS

12 Months Ended

Dec. 31, 2020

SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]

VALUATION AND QUALIFYING ACCOUNTS

SCHEDULE II

VALUATION AND QUALIFYING ACCOUNTS

December 31, 2020

(In thousands)

			Additions
Description	Balance at beginning of period		Charged to costs and expenses			Charged to other accounts			Deductions		Balance at end of period
Deferred Tax Valuation Allowance:
Year ended December 31, 2018	$	336,087	$	330	(1)	$	—		$	—	$	336,417
Year ended December 31, 2019	$	336,417	$	60,376	(2)	$	13,790	(3)	$	(1,680)	$	408,903
Year ended December 31, 2020	$	408,903	$	(27,913)	(4)	$	—		$	—	$	380,990

(1) Additional valuation allowance for the Tax Cuts and Jobs Act of $6,042 and federal credits of $207, partially offset by reduction of valuation allowance for federal and state net operating losses and federal credits of $5,919.

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

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

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