Related-Party Transactions (Tables)

12 Months Ended

Dec. 31, 2012

Related-Party Transactions [Abstract]

Amendments To The Share Repurchase Program For The Common Shares Approved For Repurchase

	Common Shares
	Authorized for
Amendment Date	Repurchase
(Dollars in thousands)
09/21/2004	$	5,000,000
07/21/2008		5,000,000
02/24/2010		5,000,000
02/22/2012		5,000,000
	$	20,000,000

Purchase Price For Common Shares

(Dollars in thousands)
Total purchase price	$	835,371

Dividends Received On Common Shares Reported As Net Investment Income

	Years Ended December 31,
(Dollars in thousands)	2012		2011		2010
Dividends received	$	18,663	$	18,645	$	14,029

Expenses Incurred By Holdings From Services Provided By Affiliated Company

	Years Ended December 31,
(Dollars in thousands)	2012		2011		2010
Expenses incurred	$	78,398	$	61,108	$	62,740