ACCOUNTS RECEIVABLE, NET OF ALLOWANCE (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2020

Dec. 31, 2019

Long-term accounts receivable, net, consisted of the following at the dates indicated (in thousands):


	March 31, 2020			December 31, 2019
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

Long-term accounts receivable, net, consisted of the following at the dates indicated (in thousands):


	December 31, 2019			December 31, 2018
Customer receivables	$	153,530		$	167,017
Unearned finance income		(16,303	)		(17,000	)
Allowance for doubtful accounts		(5,884	)		(4,941	)

Accounts receivable, net of allowance		131,343			145,076
Less: Current portion, net of allowance		55,794			57,928

Long-term portion, net of allowance	$	75,549		$	87,148

Activity in the allowance for doubtful accounts was as follows (in thousands):


	March 31, 2020			December 31, 2019
Balance, beginning of period	$	5,884		$	4,941
Provision for doubtful accounts		1,144			7,559
Charge-offs, net		(1,690	)		(6,616	)

Balance, end of period	$	5,338		$	5,884

Activity in the allowance for doubtful accounts was as follows (in thousands):


	December 31, 2019			December 31, 2018
Balance, beginning of period	$	4,941		$	19,795
Cumulative effect of accounting changes		—			(12,876	)
Provision for doubtful accounts		7,559			7,358
Charge-offs, net		(6,616	)		(9,336	)

Balance, end of period	$	5,884		$	4,941