Leases (Tables)

12 Months Ended

Dec. 31, 2014

Leases

Schedule of future minimum non-cancelable operating lease payments

($ in thousands)	Operating Leases
2015	$	4,700
2016		3,600
2017		3,400
2018		2,800
2019		1,400
Thereafter		955
Total minimum lease obligations	$	16,855

Summary of operating lease rent expense

	Year Ended December 31,
($ in thousands)	2014		2013		2012
Rent expense	$	4,300	$	3,936	$	3,435