Income Taxes - Narrative (Details)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Income Tax [Line Items]
Effective tax rates (as a percent)	(21.30%)	(40.60%)
Minimum
Income Tax [Line Items]
Effective Income Tax Rate Reconciliation, at Foreign Statutory Income Tax Rate, Percent	0.00%
Maximum
Income Tax [Line Items]
Effective Income Tax Rate Reconciliation, at Foreign Statutory Income Tax Rate, Percent	35.00%