Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2013

Fair Value Disclosures [Abstract]

Changes in Assets and Liabilities Measured at Fair Value on Recurring Basis

The Company’s assets measured at fair value on a recurring basis as of September 30, 2013 and December 31, 2012 by fair value hierarchy level were as follows:

September 30, 2013
	Level 1		Level 2		Level 3		Total
($ in thousands)
Assets
Marketable securities trading:
Sponsored mutual funds and variable insurance funds	$	13,813	$	—	$	—	$	13,813
Equity securities		5,104		—		—		5,104
Investments of consolidated sponsored investment products:
Debt securities		—		27,609		—		27,609
Equity securities		67,449		940		—		68,389
Marketable securities available for sale:
Sponsored closed-end funds		2,684		—		—		2,684
Other assets
Nonqualified retirement plan assets		3,783		—		—		3,783
Total assets measured at fair value	$	92,833	$	28,549	$	—	$	121,382

December 31, 2012
	Level 1		Level 2		Level 3		Total
($ in thousands)
Assets
Marketable securities trading:
Sponsored mutual funds and variable insurance funds	$	8,013	$	—	$	—	$	8,013
Equity securities		4,379		—		—		4,379
Investments of consolidated sponsored investment products:
Debt securities		—		25,812		—		25,812
Equity securities		10,092		7,323		—		17,415
Marketable securities available for sale:
Sponsored closed-end funds		2,656		—		—		2,656
Other assets
Nonqualified retirement plan assets		2,970		—		—		2,970
Total assets measured at fair value	$	28,110	$	33,135	$	—	$	61,245