Earnings per Share Earnings per Share (Textuals) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Jun. 01, 2013	Dec. 31, 2012
Preferred Stock Dividends and Other Adjustments [Abstract]
Preferred Stock, Shares Outstanding	2,000		2,000		2,000	4,000
Preferred Stock, Dividends, Per Share, Cash Paid					$ 609.375
Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Share Value, Amount [Abstract]
Preferred shares redeemed during period			2,000
Excess of fair value over book value of preferred shares redeemed	$ 0	$ 0	$ 2,190	$ 0
Redemption of preferred shares			(50,352)	0
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Stock Issued During Period, Shares, New Issues			2,461,000
StockIssuedDuringPeriodPricePerShare			$ 23.50
Proceeds from Issuance of Common Stock			$ 54,617	$ 0