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ACCOUNTS RECEIVABLE, NET OF ALLOWANCE - Long Term Accounts Receivable, Net of Allowance (Detail) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Receivables [Abstract]    
Customer receivables $ 147,673 $ 153,530
Unearned finance income (15,345) (16,303)
Allowance for doubtful accounts (5,338) (5,884)
Accounts receivable, net of allowance 126,990 131,343
Less: Current portion, net of allowance 55,516 55,794
Long-term portion, net of allowance $ 71,474 $ 75,549