Junior Subordinated Debt Securities Payable (Tables)

12 Months Ended

Dec. 31, 2011

Junior Subordinated Debt Securities Payable [Abstract]

Outstanding Junior Subordinated Debt Securities

					December 31, 2011				December 31, 2010
					Consolidated Balance				Consolidated Balance
(Dollars in thousands)	Date Issued	Date Due	Amount Issued		Sheet Amount		Fair Value		Sheet Amount		Fair Value
6.20% Junior subordinated debt securities	03/29/2004	03/29/2034	$	329,897	$	329,897	$	326,313	$	329,897	$	294,825

Interest Expense Incurred

	Years Ended December 31,
(Dollars in thousands)	2011		2010		2009
Interest expense incurred	$	20,454	$	20,454	$	20,454