Income Taxes (Tables)

12 Months Ended

Dec. 31, 2018

Income Tax Disclosure [Abstract]

Schedule of income before Income tax, domestic and foreign

	Years Ended December 31,
	2018			2017			2016
U.K.	$	(82,790	)	$	(64,177	)	$	(36,300	)
U.S.		(97,137	)		(159,951	)		(149,605	)
Other Foreign		262,869			245,331			209,997
	$	82,942		$	21,203		$	24,092

Schedule of Income tax expense (benefit)

	Years Ended December 31,
	2018			2017			2016
Current — U.K.	$	8,167		$	667		$	81,822
U.S.		21,611			3,530			47,025
Other Foreign		14,690			25,347			31,552
		44,468			29,544			160,399
Deferred — U.K.		(20,280	)		(22,254	)		(23,177	)
U.S.		(53,160	)		(49,671	)		(105,735	)
Other Foreign		4,628			(2,540	)		(16,356	)
		(68,812	)		(74,465	)		(145,268	)
Income tax (benefit) expense	$	(24,344	)	$	(44,921	)	$	15,131

Schedule of income tax rates

	Years Ended December 31,
	2018			2017			2016
Statutory income tax rate		19.00	%		19.25	%		20.00	%
Effects of:
State income taxes, net of federal benefit		(5.3	)		11.0			(16.6	)
U.S. domestic manufacturing deduction		—			(0.9	)		(12.0	)
Facilitative transaction costs		—			54.2			22.0
Research and development tax credits		(35.2	)		(119.7	)		(90.6	)
Withholding taxes (U.K. entities)		4.2			12.4			245.5
U.K. stamp duty		0.5			—			9.4
Subpart F income		3.2			—			4.0
Changes in valuation allowance		—			35.1			6.0
Foreign tax credits		9.8			29.5			(14.0	)
Non-deductible officer compensation		5.5			4.9			—
Non-U.K. tax rate differential		4.4			26.1			(50.9	)
Benefit of other foreign tax regimes		(42.8	)		(170.6	)		(135.4	)
Accrual of outside basis differences		7.9			(0.3	)		0.9
Impacts of internal restructuring		(4.6	)		—			—
Gain on sale of Taiwan factory		(5.2	)		—			—
Change in tax rate		1.8			(105.0	)		—
Uncertain tax positions		5.3			(13.1	)		88.9
Other, net		2.2			5.3			(14.4	)
		(29.4	)%		(211.85	)%		62.8	%

Schedule of deferred income tax assets (liabilities)

	December 31,
	2018			2017
Deferred income tax assets
Inventory costs	$	21,471		$	29,453
Property, plant and equipment		12,333			—
Accrued employee benefits		22,595			34,472
Accrued operating expenses		42,290			24,904
Reserves		13,144			16,434
Investments		—			8,796
Loss carryforwards		68,518			91,832
Research and development and other credits		181,851			164,841
Capitalized research and development		97,975			83,224
Other		26,157			17,379
Total deferred income tax assets		486,334			471,335
Deferred income tax liabilities:
Property, plant and equipment		—			(571	)
Investments		(1,970	)		—
Other liabilities		(3,026	)		(7,190	)
Goodwill and intangible assets		(262,660	)		(325,283	)
Total deferred income tax liabilities		(267,656	)		(333,044	)
Net deferred income tax assets		218,678			138,291
Valuation allowance		(90,057	)		(91,743	)
Net deferred income tax assets	$	128,621		$	46,548

Schedule of deferred tax assets related to loss carryforwards and tax credits

	2018		2017		Expiration
Net operating loss carryforwards (“NOL”):
U.S. federal (1)	$	7,117	$	27,405	2019 - 2029
Georgia		15,211		15,948	2019 - 2038
Pennsylvania		17,400		17,687	2019 - 2038
Other U.S. states		10,944		12,236	2019 - 2038
Non-U.S.		17,846		18,556	Varies (2)
Total tax effected loss carryforward	$	68,518	$	91,832
Tax credit carryforwards:
U.S. federal R&D	$	119,257	$	103,581	2019 - 2038
Other U.S. federal		—		5,742
California R&D		40,335		34,208	Indefinite
Other U.S. states R&D		22,259		21,310	2019 - 2038
Total credit carryforward	$	181,851	$	164,841

(1) Gross of tax effect U.S. Federal operating loss carryforwards are $33.9 million for the year ended December 31, 2018 and $130.5 million for the year ended December 31, 2017.

(2) $2.9 million of this amount is located in Mexico and Israel, both of which have an expiration of ten years, Canadian NOLs expire within 16 years and all other foreign NOLs have an indefinite carryforward life.

Schedule of valuation allowance

	2018			2017
U.S. federal R&D	$	(5,239	)	$	(8,578	)
Other U.S. federal		(1,585	)		(4,241	)
Georgia NOL		(14,478	)		(15,008	)
Pennsylvania NOL		(9,887	)		(10,068	)
Other state NOL		(9,111	)		(8,988	)
California R&D		(25,994	)		(18,773	)
Other state R&D		(15,635	)		(15,606	)
Non-U.S. NOL		(8,128	)		(10,481	)
Ending balance	$	(90,057	)	$	(91,743	)

	For the Period ended December 31,
	2018			2017			2016
Beginning balance	$	91,743		$	57,772		$	87,788
Additions		13,082			52,680			17,973
Reductions		(14,768	)		(18,709	)		(47,989	)
Ending balance	$	90,057		$	91,743		$	57,772

Schedule of reconciliation of unrecognized tax benefits

	For the Period ended December 31,
	2018			2017			2016
Beginning balance	$	174,225		$	128,053		$	49,919
Gross increases — tax positions in prior period		7,055			6,783			8,068
Gross decreases — tax positions in prior period		(6,368	)		(21,409	)		(5,700	)
Gross increases — current-period tax positions		24,767			24,551			27,774
Changes from acquired businesses		(34,199	)		39,420			60,796
Changes related to foreign currency translation and remeasurement		(2,284	)		1,545			(1,087	)
Decreases relating to settlements with taxing authorities and other		(202	)		(686	)		(3,933	)
Decreases due to lapse of statute of limitations		(13,122	)		(4,032	)		(7,784	)
Ending balance	$	149,872		$	174,225		$	128,053