STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash flows from operating activities
Management fee received	$ 1,536,699	$ 1,454,902	$ 1,348,885
Service agreement fee received	29,200	29,997	30,929
Net investment income received	26,796	25,999	22,846
Limited partnership distributions	17,837	14,112	15,327
Increase (decrease) in reimbursements collected from affiliates	247	7,775	(7,472)
Commissions paid to agents	(756,713)	(725,714)	(665,154)
Agents bonuses paid	(113,859)	(96,749)	(83,436)
Salaries and wages paid	(160,985)	(155,303)	(153,459)
Pension contribution and employee benefits paid	(44,250)	(40,993)	(48,516)
General operating expenses paid	(176,029)	(190,301)	(178,452)
Income taxes paid	(104,607)	(106,347)	(95,485)
Net cash provided by operating activities	254,336	217,378	186,013
Purchase of investments:
Available-for-sale securities	(369,811)	(228,308)	(250,789)
Limited partnerships	(578)	(928)	(1,123)
Proceeds from investments:
Available-for-sale securities sales	89,498	102,286	116,401
Available-for-sale securities maturities/calls	146,285	112,705	119,679
Trading securities	5,171	0	0
Limited partnerships	16,113	26,735	28,613
Net purchase of fixed assets	(25,208)	(12,556)	(19,473)
Net collections on agent loans	1,586	688	1,595
Net cash (used in) provided by investing activities	(136,944)	622	(5,097)
Cash flows from financing activities
Purchase of treasury stock	0	0	(19,692)
Dividends paid to shareholders	(135,985)	(126,858)	(118,526)
Net proceeds from long-term borrowings	24,776
Net cash used in financing activities	(111,209)	(126,858)	(138,218)
Net increase in cash and cash equivalents	6,183	91,142	42,698
Cash and cash equivalents, beginning of year	182,889	91,747	49,049
Cash and cash equivalents, end of year	189,072	$ 182,889	$ 91,747
Supplemental disclosure of noncash transactions
Transfer of investments from limited partnerships to trading securities	$ 4,464