CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
REVENUES
Commissions and fees	$ 464,724	$ 445,662	$ 909,290	$ 867,997
Investment income	351	502	594	920
Other income, net	1,230	354	21,501	1,774
Total revenues	466,305	446,518	931,385	870,691
EXPENSES
Employee compensation and benefits	244,517	231,102	490,383	455,161
Other operating expenses	71,312	66,291	138,231	129,896
Loss/(gain) on disposal	9	(810)	(91)	(2,854)
Amortization	21,347	21,610	42,967	43,220
Depreciation	5,655	5,354	11,753	10,672
Interest	9,874	9,837	19,556	19,734
Change in estimated acquisition earn-out payables	5,589	4,057	9,617	3,236
Total expenses	358,303	337,441	712,416	659,065
Income before income taxes	108,002	109,077	218,969	211,626
Income taxes	41,900	42,827	82,757	83,306
Net income	$ 66,102	$ 66,250	$ 136,212	$ 128,320
Net income per share:
Basic (in dollars per share)	$ 0.47	$ 0.47	$ 0.97	$ 0.92
Diluted (in dollars per share)	0.46	0.47	0.96	0.91
Dividends declared per share (in dollars per share)	$ 0.1350	$ 0.12	$ 0.2700	$ 0.245