Contingencies (Tables)

12 Months Ended

Dec. 31, 2014

Contingencies

Summary of Remediation Reserve Activity

	Year Ended December 31,
($ in thousands)	2014			2013
Balance at beginning of period	$	5,116		$	3,847
Remediation expense		1,521			2,133
Remediation payments		(2,719	)		(864	)
Balance at the end of the period	$	3,918		$	5,116