SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Schedule of Useful Lives of Property Plant and Equipment

	Years
Equipment and furniture	5
Computers and software	2 - 3
Automobiles	5
Leasehold improvements	Lesser of the lease term or estimated useful life

Schedule of Changes in AOCI, Including the Amounts Reclassified to Income

	Foreign currency
	translation and
	unrealized gains
	(losses), net
	of tax
	(in thousands)
Balance at December 31, 2018	$	61,572
Unrecognized gain on foreign currency translation		529
Balance at December 31, 2019	$	62,101
Unrecognized gain on foreign currency translation		1,560
Balance at December 31, 2020	$	63,661

Summary of the Total Potential Ordinary Shares that were Excluded from the Diluted Per Share Calculation

	Years ended December 31,
	2020		2019		2018
	(in thousands)
Anti-dilutive stock options and awards/units outstanding		1,478		1,335		—
Total(1)		1,478		1,335		—

(1) Calculated using the treasury stock method, which assumes proceeds are used to reduce the dilutive effect of outstanding stock awards. Assumed proceeds include the unrecognized deferred compensation of share awards, and assumed tax proceeds from excess stock-based compensation deductions.

Schedule of Diluted Earnings Per Share

After the dilution, the diluted earnings per share during the year ended December 31, 2018 was as follows.

	2020			2019			2018
	(in thousands, except per
				shares amounts)
Net Income (loss)	$	(23,676	)	$	(3,913	)	$	4,820
Weighted average shares outstanding—Diluted		35,881			35,556			36,319
Net Income (loss) per shares —Diluted	$	(0.66	)	$	(0.11	)	$	0.13

Summary of Accounts Receivable, Net

Accounts receivable, net, as of December 31, 2020 and 2019 consisted of the following:

	Years Ended
	December 31,
	2020			2019
	(in thousands)
Accounts receivable ,net	$	49,623		$	77,831
Account receivable		65,605			84,337
Less: Allowance for credit losses	$	(15,982	)	$	(6,506	)

Summary of Allowance for Credit Losses

The movement of allowance for credit losses for the years ended December 31, 2020, 2019 and 2018 was as follows (in thousands)

			Charged
	Balance at		(credited) to								Balance at
	beginning of		costs and		Exchange			(Deductions)			end of
Description	the period		expenses		difference			Adjustments			the period
Year ended December 31, 2020
Allowance for credit losses	$	6,506	$	9,441	$	35		$	—		$	15,982
Year ended December 31, 2019
Allowance for credit losses	$	2,124	$	4,396	$	(14	)	$	—		$	6,506
Year ended December 31, 2018
Allowance for credit losses	$	2,437	$	812	$	(280	)	$	(845	)	$	2,124