Related-Party Transactions (Tables)

12 Months Ended

Dec. 31, 2017

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
05/15/2013	5,000,000
11/19/2014	5,000,000
	30,000,000

Dividends Received On Preferred Shares

	Years Ended December 31,
(Dollars in thousands)	2017		2016		2015
Dividends received on Parent shares	$	-	$	-	$	38,880
Dividends received on preferred stock of affiliate		31,032		31,032		-

Expenses Incurred By Holdings From Services Provided By Affiliated Company

	Years Ended December 31,
(Dollars in thousands)	2017		2016		2015
Expenses incurred	$	91,927	$	84,823	$	81,122