Subsequent Events (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended	0 Months Ended
	Jun. 30, 2013 10.00% Senior Unsecured Notes due 2017	Jul. 15, 2013 Subsequent Event Debt
Subsequent Event [Line Items]
Redemption Date of 10.00% Notes	Jul. 15, 2013
Extinguishment of Debt, Amount		$ 600.0
Stated Interest Rate	10.00%
Loss on Extinguishment of Debt		45.2
Write off of Unamortized Discount		7.3
Write off of Deferred Debt Issuance Cost		7.9
Redemption Premium		30.0
Total Cash Paid to Redeem Debt		$ 630.0