Income Taxes - Effective Income Tax Reconciliation (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Effective income tax reconciliation table [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate		21.00%
United States		$ (557,592)	$ 186,677	$ 115,664
International		445,762	722,696	578,253
Income (loss) before income taxes		(111,830)	909,373	693,917
Provision (benefit) at statutory tax rate		(23,484)	190,968	242,415
State taxes, net of federal benefit		(2,051)	18,888	5,184
International effective tax rate differential		17,474	7,480	(88,444)
U.S. tax (benefit) on foreign earnings		26,013	0	0
Deductible loss on wind down of business	[1]	(11,311)	0	0
Capital loss		0	60,757	0
Change in valuation allowance		1,305	(66,557)	1,408
Other non-deductible expenses		1,585	14,128	12,700
Changes in tax accruals		10,418	(3,968)	(7,973)
Tax Credits		(3,034)	(7,884)	(8,170)
Non-deductible portion of impairment of goodwill		75,900	0	0
Tax Act's transition tax	[2]	0	(28,323)	196,010
Tax Act's impact on deferred taxes	[3]	0	0	(71,261)
Other		(4,477)	2,310	4,672
Provision for income taxes		$ 88,338	$ 187,799	$ 286,541

[1] The wind of down of the company’s personal computer and mobility asset disposition business resulted in the net tax benefit of $11,311 for the year ended December 31, 2019.

[2] For the year ended December 31, 2017, the company accrued a provisional estimate of $196,010 of tax expense for the Tax Act's one-time transition tax on the foreign subsidiaries' accumulated, unremitted earnings in accordance with U.S. Securities and Exchange Commission's Staff Accounting Bulletin (“SAB 118”). Additionally, during the fourth quarter of 2018 the company recorded a $28,323 benefit upon finalizing its analysis of the impact from the Tax Act.

[3] For the year ended December 31, 2017, the company accrued $71,261 in provisional tax benefit related to the net change in deferred tax liabilities stemming from the Tax Act's reduction of the U.S. federal tax rate from 35% to 21%, and disallowance of certain incentive based compensation tax deductibility under Internal Revenue Code Section 162(m).