Income Taxes (Tables)

12 Months Ended

Dec. 31, 2018

Income Tax Disclosure [Abstract]

Schedule of Income before Income Tax, Domestic and Foreign

The components of loss before provision for income taxes are as follows (in thousands):

	Year ended December 31,
	2018			2017			2016
Domestic	$	(13,814	)	$	(42,185	)	$	(69,020	)
Foreign	(15,409		)	(4,810		)	(15,354		)
Loss before provision for income taxes	$	(29,223	)	$	(46,995	)	$	(84,374	)

Schedule of provision for income tax expense

The income tax (benefit) expense is as follows (in thousands):

	Year ended December 31,
	2018			2017			2016
Current:
Federal	$	(773	)	$	(250	)	$	(958	)
State	227			47			113
Foreign	(6,830		)	5,365			5,865
Total current income tax (benefit) expense	(7,376		)	5,162			5,020
Deferred:
Federal	379			(5,497		)	(7,550		)
State	48			(372		)	(31		)
Foreign	(1,428		)	(1,182		)	(439		)
Total deferred income (benefit) expense	(1,001		)	(7,051		)	(8,020		)
Income tax (benefit) expense	$	(8,377	)	$	(1,889	)	$	(3,000	)

Schedule of reconciliation of income tax at the federal statutory rate to the actual effective income tax rate

The reconciliation of income tax at the federal statutory rate to the actual effective income tax rate (benefit) is as follows:

	Year ended December 31,
	2018		2017		2016
Federal statutory rate	(21.0	)%	(35.0	)%	(35.0	)%
Foreign rate differential	(3.0	)%	1.5	%	2.1	%
Losses of foreign subsidiaries disregarded for US income tax	(1.3	)%	(2.5	)%	(3.2	)%
State income taxes, net of federal benefit	(0.8	)%	(3.0	)%	—	%
Nondeductible loan costs	0.5	%	1.4	%	1.9	%
Nondeductible transaction costs	1.1	%	—	%	—	%
Impact of tax liquidation	10.4	%	—	%	—	%
Tax indemnification charges	9.5	%	(1.3	)%	1.5	%
Stock Compensation	(1.4	)%	—	%	—	%
Other differences	2.7	%	(2.7	)%	2.7	%
Withholding tax	1.7	%	2.5	%	1.5	%
Tax credits	(12.0	)%	(2.1	)%	(0.7	)%
Uncertain tax positions	(38.0	)%	7.3	%	1.9	%
Valuation allowance	22.9	%	47.2	%	23.7	%
Rate change - impact of the Tax Act	—	%	19.9	%	—	%
Repatriation tax - impact of the Tax Act	(1.0	)%	4.1	%	—	%
Tax credits - impact of the Tax Act	0.6	%	(6.0	)%	—	%
Valuation allowance - impact of the Tax Act	0.4	%	(35.3	)%	—	%
Effective tax rate	(28.7	)%	(4.0	)%	(3.6	)%

Schedule of deferred tax liability

The components of the net deferred tax assets (liability) consist of the following (in thousands):

	December 31,
	2018			2017
Deferred tax assets:
Accrued expenses	$	3,042		$	2,356
Stock Compensation	2,164			—
Foreign tax credits	13,571			11,454
Net operating loss carryforwards	43,637			42,205
Research and development credits	4,530			3,320
Other	4,492			4,113
Total deferred tax assets	71,436			63,448
Valuation allowance	(40,857		)	(33,774		)
Deferred tax assets, net of valuation allowance	$	30,579		$	29,674
Deferred tax liabilities:
Prepaid expenses and other	$	(511	)	$	(359	)
Intangible assets	19,552			(25,493		)
Property and equipment, net	(9,415		)	(3,723		)
Deferred tax liabilities	(29,478		)	(29,575		)
Net deferred tax assets (liabilities)	$	1,101		$	99

Summary of Income Tax Contingencies

The Company had the following activity for unrecognized tax benefits in 2018 and 2017 (amounts in thousands):

	December 31, 2018			December 31, 2017
Balance-beginning of year	$	28,673		$	30,164
Acquisitions	—			—
Increases based on tax positions of the current year	393			2,065
Decrease due to tax authority settlements	(10,457		)	—
Decreases due to lapse of statute	(5,118		)	(392		)
Increases based on tax positions of the prior years	156			1,217
Decreases based on tax positions of the prior years	(1,065		)	(4,908		)
Currency translation adjustments	(2		)	527
Balance-end of year	$	12,580		$	28,673