Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Goodwill and Intangible Assets, Net

Intangible assets, net are summarized as follows:

	December 31,
	2015			2014
($ in thousands)
Definite-lived intangible assets, net:
Investment contracts	$	158,747		$	158,747
Accumulated amortization	(152,676		)	(149,380		)
Definite-lived intangible assets, net	6,071			9,367
Indefinite-lived intangible assets	34,816			32,416
Total intangible assets, net	$	40,887		$	41,783

Activity in goodwill and intangible assets, net is as follows:

	Years Ended December 31,
	2015			2014			2013
($ in thousands)
Intangible assets, net
Balance, beginning of period	$	41,783		$	44,633		$	48,711
Acquisition	2,400			1,075			356
Amortization expense	(3,296		)	(3,925		)	(4,434		)
Balance, end of period	$	40,887		$	41,783		$	44,633
Goodwill
Balance, beginning of period	$	5,260		$	5,260		$	5,260
Acquisition	1,441			—			—
Balance, end of period	$	6,701		$	5,260		$	5,260