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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
SUPPLEMENTARY CONSOLIDATED FINANCIAL STATEMENT SCHEDULE
VALUATION AND QUALIFYING ACCOUNTS
(in thousands)Balance at Beginning of YearAdditions Charged to Costs and Expenses
Deductions(1)
Balance at
End of Year
Allowance for Doubtful Accounts
Year Ended December 31, 2021$261 $349 $(86)$524 
Year Ended December 31, 2020764 336 (839)261 
Year Ended December 31, 2019188 967 (391)764 
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(1)    Consists of write-offs of uncollectible accounts, net of recoveries.