Income Taxes (Reconciliation Of Effective Income Tax Rate) (Details)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Expected federal income tax rate	35.00%	35.00%	35.00%
State income taxes, net of federal tax benefit	4.80%	0.70%	(1.00%)
Change in state tax rate	0.00%	3.50%	0.00%
Change in valuation allowance on state net operating losses	18.90%	(7.30%)	0.00%
Foreign tax rate differential	38.40%	(18.90%)	(8.70%)
Unbenefited foreign losses	14.70%	41.40%	3.00%
Foreign tax credits	(26.60%)	0.00%	(9.10%)
Manufacturing deduction	(0.00%)	(1.60%)	(1.70%)
Research and development credit	(6.60%)	(1.10%)	(0.50%)
Foreign audit settlement	0.00%	6.00%	0.00%
Other, net	3.40%	(0.30%)	1.40%
Effective tax rate	(4.40%)	56.00%	20.40%