Income Taxes (Effective Tax Rate Reconciliation) (Details)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Statutory federal rate	21.00%	21.00%	35.00%
State and local taxes, net of federal tax benefit	(2.70%)	2.20%	0.20%
U.S. Tax Reform	0.00%	0.00%	(24.70%)
Tax on foreign income	62.10%	(16.20%)	6.00%
Tax on uncertain tax positions - Brazil	8.10%	67.40%	0.00%
Tax on uncertain tax positions - Rest of World	8.50%	8.50%	(3.60%)
Reorganizations	185.60%	(91.30%)	0.00%
Net change in valuation allowances	(208.00%)	128.30%	62.40%
Imputed royalties and associated non-deductible expenses	0.00%	0.60%	9.50%
Research credits	(0.90%)	(1.30%)	(1.30%)
Other	0.80%	1.00%	(0.10%)
Effective tax rate	74.50%	120.20%	83.40%