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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
 12 Months Ended
Dec. 31, 2022
Accounting Policies [Abstract]  
Schedule of Changes in Allowance for Doubtful Accounts
The following table presents the changes in the allowance for doubtful accounts (in thousands):
Year Ended December 31,
202220212020
Balance, beginning of year$14,012 $12,711 $9,049 
Add: adoption of ASC 326, Financial Instruments - Credit Losses
— — 461 
Add: provision for doubtful accounts17,191 9,615 10,515 
Less: write-offs, net of recoveries and other adjustments(12,728)(8,314)(7,314)
Balance, end of year$18,475 $14,012 $12,711 
Schedule of Changes in Contractual Allowance
The following table presents the changes in the contractual allowance (in thousands):
Year Ended December 31,
202220212020
Balance, beginning of year$31,274 $21,281 $15,433 
Add: allowance for contractual adjustments41,158 27,459 20,916 
Less: contractual adjustments(31,043)(17,466)(15,068)
Balance, end of year$41,389 $31,274 $21,281