CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Revenues:
Investment management fees	$ 204.0	$ 194.1	$ 605.0	$ 588.5
Performance fees	(22.0)	(20.9)	(63.7)	(61.8)
Shareowner servicing fees and other	35.7	35.8	106.4	106.7
Total	217.7	209.0	647.7	633.4
Operating expenses:
Employee compensation and benefits	73.3	70.8	222.0	209.4
Long-term incentive compensation	15.8	16.2	45.3	51.0
Marketing and advertising	4.6	5.4	14.3	16.3
Distribution	30.8	32.3	94.0	96.0
Depreciation and amortization	7.1	9.9	21.9	26.0
General, administrative and occupancy	27.1	26.5	78.1	78.2
Total	158.7	161.1	475.6	476.9
Operating income	59.0	47.9	172.1	156.5
Interest expense	(9.5)	(11.1)	(31.7)	(33.9)
Investment gains, net	7.9	7.6	6.4	6.9
Other income, net	0.8	0.3	1.8	2.2
Loss on early extinguishment of debt	(0.9)		(13.5)	(7.2)
Income before taxes	57.3	44.7	135.1	124.5
Income tax provision	(21.7)	(17.0)	(53.0)	(45.4)
Net income	35.6	27.7	82.1	79.1
Noncontrolling interests	(3.0)	(2.6)	(5.7)	(8.0)
Net income attributable to JCG	32.6	25.1	76.4	71.1
Earnings per share attributable to JCG common shareholders:
Basic (in dollars per share)	$ 0.18	$ 0.14	$ 0.41	$ 0.39
Diluted (in dollars per share)	$ 0.17	$ 0.14	$ 0.41	$ 0.38
Other comprehensive income (loss), net of tax:
Net unrealized gain on available-for-sale securities	0.7	0.1	0.6	0.6
Foreign currency items		0.3		0.1
Reclassifications for items included in net income	(0.7)	0.2	(2.4)	(0.1)
Other comprehensive income (loss), net of tax		0.6	(1.8)	0.6
Comprehensive income	35.6	28.3	80.3	79.7
Comprehensive income attributable to noncontrolling interests	(3.0)	(2.6)	(5.7)	(8.0)
Comprehensive income attributable to JCG	$ 32.6	$ 25.7	$ 74.6	$ 71.7