Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2012

Commitments and Contingencies [Abstract]

Summary of estimated future minimum lease payments under noncancelable operating leases

(dollars in thousands)	For the years ended December 31,
2013	$	1,825
2014		1,841
2015		796
2016		795
2017		120
Thereafter		1,143
	$	6,520