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ACCOUNTS RECEIVABLE, NET OF ALLOWANCE FOR CREDIT LOSSES
 12 Months Ended
Dec. 31, 2021
Credit Loss [Abstract]  
ACCOUNTS RECEIVABLE, NET OF ALLOWANCE FOR CREDIT LOSSES ACCOUNTS RECEIVABLE, NET OF ALLOWANCE FOR CREDIT LOSSES
A summary of the changes to allowance for credit losses follows:
Fiscal Year Ended
December 31,
202120202019
Balance at beginning of period$2,333$1,468 $931 
Cumulative effect of new accounting principle—189 — 
Additions - charged to expense1,8961,971 1,360 
Deductions - bad debts written off, net of recoveries(953)(1,295)(823)
Balance at end of period$3,276 $2,333 $1,468