STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Operating revenue
Management fee revenue, net	$ 392,058	$ 367,458
Service agreement revenue	7,258	7,270
Total operating revenue	399,316	374,728
Operating expenses
Commissions	220,478	208,714
Salaries and employee benefits	59,740	53,289
All other operating expenses	52,564	45,060
Total operating expenses	332,782	307,063
Net revenue from operations	66,534	67,665
Investment income
Net investment income	5,978	4,662
Net realized investment gains (losses)	516	(1,088)
Net impairment losses recognized in earnings	(121)	(345)
Equity in earnings (losses) of limited partnerships	213	(670)
Total investment income	6,586	2,559
Interest expense, net	166
Income before income taxes	72,954	70,224
Income tax expense	25,078	24,329
Net income	$ 47,876	$ 45,895
Class A
Net income per share
Common stock - basic (in dollars per share)	$ 1.03	$ 0.99
Common stock - diluted (in dollars per share)	$ 0.91	$ 0.87
Weighted average shares outstanding – Basic
Common stock - basic (in shares)	46,188,522	46,189,068
Weighted average shares outstanding – Diluted
Common stock - diluted (in shares)	52,408,560	52,523,927
Dividends declared per share
Common stock (in dollars per share)	$ 0.7825	$ 0.73
Class B
Net income per share
Common stock - basic (in dollars per share)	154	148
Common stock - diluted (in dollars per share)	$ 154	$ 148
Weighted average shares outstanding – Basic
Common stock - basic (in shares)	2,542	2,542
Weighted average shares outstanding – Diluted
Common stock - diluted (in shares)	2,542	2,542
Dividends declared per share
Common stock (in dollars per share)	$ 117.3750	$ 109.50