ACCOUNTS RECEIVABLE, NET OF ALLOWANCE - Long Term Accounts Receivable, Net of Allowance (Detail) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Receivables [Abstract]
Customer receivables	$ 151,854	$ 153,530
Unearned finance income	(15,787)	(16,303)
Allowance for doubtful accounts	(6,998)	(5,884)
Accounts receivable, net of allowance	129,069	131,343
Less: Current portion, net of allowance	55,963	55,794
Long-term portion, net of allowance	$ 73,106	$ 75,549

Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business.

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Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business.

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Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as noncurrent.

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Amount of allowance for credit loss on accounts receivable.

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- Definition

Unearned discounts (other than cash or quantity discounts and the like), finance charges, and interest included in the face amount of receivables, that are shown as a deduction from the related receivables. For example, 1) finance charges booked as a receivable when a loan is made and recognized as income at a later date; and 2) interest charges deducted from the face loan amount, resulting in a discounted amount actually advanced to the borrower (wherein the receivable includes the amount actually advanced to the borrower and the as yet unearned interest income).

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