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Schedule V - Valuation and Qualifying Accounts (Detail) - Allowance for doubtful accounts - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Beginning Balance $ 584 $ 631 $ 749
Charges to Earnings 711 466 528
Charges to Other Accounts 0 0 0
Deductions 375 513 646
Ending Balance $ 920 $ 584 $ 631