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SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS
 12 Months Ended
Dec. 31, 2023
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS
SCHEDULE II—VALUATION AND QUALIFYING ACCOUNTS
Years Ended December 31, 2023, 2022, and 2021
(In Thousands)
DescriptionBalance
at
Beginning
of Year		Additions Charged
to Cost
and
Expenses		DeductionsBalance
at End
of Year
Allowance for doubtful accounts:
Year ended December 31, 2023$74 $136 — $210 
Year ended December 31, 202259 15 — 74 
Year ended December 31, 202125 34 — 59 
Deferred tax asset valuation allowance:
Year ended December 31, 2023$40,844 $9,574 (a)— $50,418 
Year ended December 31, 202236,904 3,940 (a)— 40,844 
Year ended December 31, 202146,015 — (9,111)(b)36,904 
(a)The 2023 and 2022 increase in the valuation allowance is due to an increase in TRS deferred tax assets.
(b)The 2021 decrease in the valuation allowance is due to a reduction in TRS deferred tax assets.