Income Taxes (Narrative) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013
Federal Tax Authority
Operating Loss Carryforwards [Line Items]
Net operating losses	$ 172.3
Federal Tax Authority | Capital Loss Carryforward
Operating Loss Carryforwards [Line Items]
Capital loss carryforwards	110.5
State Tax Authority
Operating Loss Carryforwards [Line Items]
Net operating losses	93.1
State Tax Authority | Capital Loss Carryforward
Operating Loss Carryforwards [Line Items]
Capital loss carryforwards	24.0
Foreign Tax Authority
Operating Loss Carryforwards [Line Items]
Net operating losses	$ 95.8