Income Taxes (Reconciliation of the Statutory U.S. Federal Income Tax Rate to Effective Income Tax Rate) (Details)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
U.S. federal statutory tax rate	21.00%	21.00%	35.00%
Benefit of foreign earnings	(12.60%)	(71.20%)	60.10%
Tax credits	(0.70%)	(17.00%)	(10.70%)
Tax reserves	(0.10%)	12.10%	(14.00%)
Re-measurement of deferred taxes as a result of the Tax Act	0.00%	0.00%	(53.40%)
Acquired in-process research & development	0.00%	102.60%	0.00%
Intra-entity asset transfer of intellectual property	(17.50%)	0.00%	0.00%
Foreign-derived intangible income	(1.60%)	(4.50%)	0.00%
U.S. state taxes	0.70%	14.20%	1.50%
Other permanent differences	0.50%	10.80%	0.60%
Effective Income Tax Rate	(10.30%)	68.00%	19.10%