Goodwill (Tables)

9 Months Ended

Sep. 30, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the Carrying Value of Goodwill

	Three Months ended			Nine Months ended
(Dollars in thousands)	September 30, 2013		September 30, 2012	September 30, 2013	September 30, 2012
Net carrying value at beginning of period	$	119,509	106,100	106,100	106,100
Acquisitions	10,197		—	23,606	—
Net carrying value at end of period	$	129,706	106,100	129,706	106,100

Net Carrying Value of Goodwill

(Dollars in thousands)	September 30, 2013			December 31, 2012
Gross carrying value	$	169,865		146,259
Accumulated impairment charge	(40,159		)	(40,159	)
Net carrying value	$	129,706		106,100