INCOME TAXES (Tables)

12 Months Ended

Dec. 31, 2020

Income Tax Disclosure [Abstract]

Schedule of income before income tax, domestic and foreign

The components of income before income taxes and non-controlling interests consist of the following for the years ended December 31:

(in thousands)	2020		2019		2018
Domestic - Luxembourg	$	(50,821)	$	8,919	$	(22,513)
Foreign - U.S.	(13,243)		(12,602)		8,398
Foreign - non-U.S.	6,359		16,122		15,514
Total	$	(57,705)	$	12,439	$	1,399

Schedule of income tax provision (benefit)

The income tax (provision) benefit consists of the following for the years ended December 31:

(in thousands)	2020		2019		2018
Current:
Domestic - Luxembourg	$	(2,158)	$	—	$	(275)
Foreign - U.S. federal	4,992		187		(1,838)
Foreign - U.S. state	(322)		(174)		(336)
Foreign - non-U.S.	(6,088)		(10,970)		(7,440)
	$	(3,576)	$	(10,957)	$	(9,889)
Deferred:
Domestic - Luxembourg	$	224	$	(308,657)	$	4,927
Foreign - U.S. federal	(2,808)		329		291
Foreign - U.S. state	(465)		341		(134)
Foreign - non-U.S.	(1,984)		648		707
	$	(5,033)	$	(307,339)	$	5,791
Income tax (provision) benefit	$	(8,609)	$	(318,296)	$	(4,098)

Summary of tax effects of the temporary differences

A summary of the tax effects of the temporary differences is as follows for the years ended December 31:

(in thousands)	2020		2019
Non-current deferred tax assets:
Net operating loss carryforwards	$	353,358	$	338,403
U.S. federal and state tax credits	242		189
Other non-U.S. deferred tax assets	11,327		13,980
Share-based compensation	1,658		2,010
Accrued expenses	1,205		2,691
Unrealized losses	10,351		9,011
Other	—		526
Non-current deferred tax liabilities:
Intangible assets	(8,133)		(8,325)
Depreciation	(441)		(302)
Other non-U.S. deferred tax liability	(7)		(998)
Other	(736)		—
	368,824		357,185
Valuation allowance	(372,227)		(355,559)
Non-current deferred tax (liabilities) assets, net	$	(3,403)	$	1,626

Schedule of the reconciliation of income tax provision to the Luxembourg statutory income tax rate

The following table reconciles the Luxembourg statutory tax rate to our effective tax rate for the years ended December 31:

	2020		2019		2018
Statutory tax rate	24.94	%	24.94	%	26.01	%
Change in valuation allowance	(29.79)		2,526.53		43.08
State tax expense	(1.25)		(1.63)		28.58
Tax credits	0.10		—		—
Uncertain tax positions	(2.94)		39.60		114.18
Unrecognized tax loss	—		(67.18)		—
Income tax rate change	(2.40)		—		—
Tax rate differences on foreign earnings	(6.62)		28.75		73.11
Other	3.04		7.85		7.96
Effective tax rate	(14.92)	%	2,558.86	%	292.92	%

Summary of income tax contingencies

The following table summarizes changes in unrecognized tax benefits during the years ended December 31:

(in thousands)	2020		2019
Amount of unrecognized tax benefits as of the beginning of the year	$	9,767	$	9,687
Decreases as a result of tax positions taken in a prior period	(2,591)		(192)
Increases as a result of tax positions taken in a prior period	767		22
Increases as a result of tax positions taken in the current period	598		250
Amount of unrecognized tax benefits as of the end of the year	$	8,541	$	9,767