Income Taxes (Details 4)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
U.S. federal statutory income tax rate	35.00%	35.00%	35.00%
State taxes (net of federal benefit)	0.50%	0.30%	0.30%
Foreign losses without tax benefit	1.10%	0.80%	0.80%
U.S. Tax Court Decision	0.00%	15.30%	0.00%
Foreign operations taxed at lower rates	(12.60%)	(20.60%)	(23.70%)
Repatriation from current year foreign earnings	2.60%	1.10%	2.30%
Other	1.00%	0.90%	(1.20%)
Consolidated effective income tax rate	27.60%	32.80%	13.50%