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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 of Valuation and Qualifying Accounts Disclosure
Description
Balance at
Beginning
of Year 
Costs and
Expenses
Cumulative Effect Adjustment (1)
Deductions (2)
Balance at
End of Year
Allowance for credit losses    
Year Ended December 31, 2021$18,031 8,041 — (2,538)$23,534 
Year Ended December 31, 2020$14,466 3,269 3,150 (2,854)$18,031 
Year Ended December 31, 2019$15,361 2,628 — (3,523)$14,466 
_________________
(1) Represents the adjustment to our allowance for credit losses, which was recorded to retained earnings upon the adoption of Accounting Standards Codification Topic 326.
(2)     Deductions primarily represent uncollectible balances of accounts receivable written off, net of recoveries.