Income Taxes (Effective Income Tax Rate Reconciliation) (Details)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Tax provision at statutory rate based on income before income taxes	35.00%	35.00%	35.00%
State income taxes, net of federal tax benefit	1.70%	1.80%	1.50%
New York State corporate tax reform	5.50%	0.00%	0.00%
Stock-based compensation	(0.20%)	(0.50%)	(0.20%)
Foreign income taxes	(4.80%)	(3.10%)	(4.00%)
Federal research credit	(2.10%)	(2.80%)	0.00%
Settlement of taxing authority examinations	(3.70%)	(2.00%)	(0.80%)
European permanent deduction	(3.80%)	(2.40%)	0.00%
Non deductible/non-taxable items	1.80%	2.90%	1.30%
Other, net	1.60%	0.10%	(0.90%)
Effective income tax rate, continuing operations	31.00%	29.00%	31.90%