Income Taxes Income Taxes (Operating Loss Carryovers) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Operating Loss Carryforwards [Line Items]
Document Period End Date	Dec. 31, 2013
Federal
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 49.6
State
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	37.5
Excess Stock Option Deductions [Member] | Federal
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 27.2