Summary of Significant Accounting Policies Income tax rate reconciliation (Details)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	35.00%	(35.00%)
Effective Income Tax Rate Reconciliation, Noncontrolling Interest Income (Loss), Percent	(1.00%)	0.00%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent	(3.00%)	(5.00%)
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	(1.00%)	0.00%
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent	(25.00%)	1.00%
Effective Income Tax Rate Reconciliation, Percent	5.00%	(39.00%)