Income Taxes Rate Reconciliation (Details)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Effective income tax rate reconciliation, Federal statutory	35.00%	35.00%	35.00%
Effective income tax rate reconciliation, foreign income taxes	(17.60%)	(25.10%)	(48.50%)
Effective income tax rate reconciliation, change in enacted tax rate	0.00%	0.00%	(9.90%)
Effective income tax rate reconciliation, State and local	0.10%	0.10%	0.20%
Effective Income Tax Rate Reconciliation, Tax Credit, Percent	(1.30%)	(11.40%)	0.00%
Effective income tax rate reconciliation, valuation allowance	2.60%	4.50%	12.40%
Effective income tax rate reconciliation, U.S. tax on unremitted foreign earnings	0.20%	1.90%	(0.20%)
Effective Income Tax Rate Reconciliation, Tax Contingency, Percent	(5.70%)	13.00%	(0.50%)
Effective income tax rate reconciliation, other	0.30%	1.10%	2.00%
Effective income tax rate	13.60%	19.10%	(9.50%)