ACCOUNTS RECEIVABLE AND SIGNIFICANT CLIENTS (Tables)

12 Months Ended

Dec. 31, 2019

ACCOUNTS RECEIVABLE AND SIGNIFICANT CLIENTS [Abstract]

Schedule of Accounts Receivable

Accounts receivable, net in the accompanying Consolidated Balance Sheets consists of the following (in thousands):

	December 31,
	2019		2018
Accounts receivable	$	336,548	$	356,554
Less: Allowance for doubtful accounts		(5,452)		(5,592)
Accounts receivable, net	$	331,096	$	350,962

Schedule of Change in Allowance for Doubtful Accounts

Activity in the Company’s Allowance for doubtful accounts consists of the following (in thousands):

	December 31,
	2019		2018		2017
Balance, beginning of year	$	5,592	$	921	$	662
Provision for doubtful accounts		1,711		3,679		458
Uncollectible receivables written-off		(1,311)		(429)		(180)
Effect of foreign currency and other		(540)		1,421		(19)
Balance, end of year	$	5,452	$	5,592	$	921

Schedule of Revenue from Significant Clients

	Year Ended December 31,
	2019		2018		2017
Healthcare client	8	%	10	%	7	%

Schedule of Accounts Receivable Outstanding from Significant Clients

Accounts receivable from this client was as follows (in thousands):

	Year Ended December 31,
	2019		2018		2017
Healthcare client	$	18,385	$	49,245	$	56,802