Income Taxes (Tables)

12 Months Ended

Dec. 31, 2017

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit)

The income tax expense (benefit) consists of the following:

	Year Ended December 31, 2017			Year Ended December 31, 2016			Year Ended December 31, 2015
	(In thousands)
Current:
US federal	$	2,390		$	1,259		$	1,267
US state	1,153			310			191
Non US	8,266			3,266			4,789
	11,809			4,835			6,247
Deferred:
US federal	(5,558		)	78			808
US state	(976		)	295			720
Non US	(4,498		)	(3,571		)	(669		)
	(11,032		)	(3,198		)	859
Total	$	777		$	1,637		$	7,106

Schedule of Income before Income Tax, Domestic and Foreign

Income before income taxes includes the following components:

	Year Ended December 31, 2017			Year Ended December 31, 2016			Year Ended December 31, 2015
	(In thousands)
US	$	(13,355	)	$	(80	)	$	1,384
Non US	116,715			96,011			85,255
Total	$	103,360		$	95,931		$	86,639

Schedule of Effective Income Tax Rate Reconciliation

A reconciliation of the statutory federal income tax rate to the effective income tax rate consists of the following:

	Year Ended December 31, 2017		Year Ended December 31, 2016		Year Ended December 31, 2015
Statutory US federal income tax rate	34.0	%	35.0	%	35.0	%
US state income taxes, net of federal benefit	(0.8	)%	0.4	%	1.0	%
Non-US tax rate differential	(28.7	)%	(22.8	)%	(2.6	)%
Tax holidays	(3.5	)%	(14.0	)%	(23.5	)%
Tax Credits	(1.4	)%	—	%	—	%
Passive income exemption	(2.1	)%	(1.4	)%	(2.9	)%
Acquisition contingent earnout liability adjustments	—	%	(0.9	)%	(0.6	)%
Foreign enhanced R&D deductions	—	%	(0.9	)%	(1.0	)%
Nondeductible items	2.5	%	9.1	%	0.8	%
Effect of valuation allowance	(3.6	)%	(2.3	)%	(2.2	)%
Release of deferred tax liability on intangibles transferred	—	%	(3.5	)%	—	%
Prior year true-ups	1.1	%	2.8	%	3.2	%
Uncertain tax positions	5.8	%	0.1	%	0.1	%
Rate change on deferred taxes primarily due to tax reform	(2.4	)%	—	%	—	%
Other	(0.1	)%	0.1	%	0.8	%
Effective income tax rate	0.8	%	1.7	%	8.1	%

Deferred Income Tax, Temporary Differences Between Amounts of Assets and Liabilities

	December 31, 2017					December 31, 2016
	Deferred					Deferred
	Assets			Liabilities		Assets			Liabilities
	(In thousands)
Depreciation and amortization	$	683		$	—	$	95		$	—
Share-based compensation	590					1,612
Accruals and prepaids	2,700					842
Bad debts	1,076					859
Acquired intangible assets	—			19,421		—			22,508
Net operating loss carryforwards	15,233					19,019
Tax credit carryforwards (primarily MAT in India)	43,044					35,514
	63,326			19,421		57,941			22,508
Valuation allowance	(35		)	—		(3,747		)	—
Total deferred taxes	$	63,291		$	19,421	$	54,194		$	22,508

Schedule of Deferred Tax Assets and Liabilities

Amounts recognized in the consolidated balance sheets:

	2017		2016
	(In thousands)
Non-current deferred tax assets	43,870		31,686
ASU 2013-11 reclass, described below	(341	)	(341	)
Net deferred tax assets	43,529		31,345

Summary of Operating Loss Carryforwards

We have US Federal, state and foreign operating losses and credit carryforwards as follows:

	Year Ended December 31, 2017		Year Ended December 31, 2016
	(In thousands)
US Federal loss carryforwards	$	42,981	$	47,796
US state loss carryforwards	25,186		15,535
Foreign loss carryforwards	29,852		25,849
US Federal credit carryforwards	4,679		1,235
Foreign credit carryforwards	38,364		34,278

Schedule of Unrecognized Tax Benefits Roll Forward

	December 31, 2017		December 31, 2016		December 31, 2015
	(in thousands)
Beginning Balance	$	3,265	$	3,115	$	3,020
Additions for tax positions related to current year	—		43		41
Additions for tax positions of prior years	5,879		107		131
Reductions for tax position of prior years	—		—		(77		)
Ending Balance	$	9,144	$	3,265	$	3,115