STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities
Management fee received	$ 1,982,092	$ 1,887,537	$ 1,845,075
Administrative services reimbursements received	634,300	587,347	588,255
Service agreement revenue received	24,014	25,797	27,627
Net investment income received	45,830	35,740	36,442
Commissions paid to agents	(966,285)	(928,864)	(895,563)
Agents bonuses paid	(123,583)	(108,227)	(115,795)
Salaries and wages paid	(204,279)	(188,070)	(186,460)
Employee benefits paid	(32,836)	(33,098)	(42,728)
General operating expenses paid	(235,294)	(253,545)	(236,128)
Administrative services expenses paid	(632,530)	(598,753)	(582,528)
Income taxes paid	(84,494)	(82,576)	(72,817)
Interest paid	(4,141)	(693)	(853)
Net cash provided by operating activities	402,794	342,595	364,527
Purchase of investments:
Available-for-sale securities	(380,017)	(396,014)	(956,818)
Equity securities	(58,191)	(79,518)	(66,760)
Other investments	(1,646)	(1,142)	(1,080)
Proceeds from investments:
Available-for-sale securities sales	150,153	101,718	687,347
Available-for-sale securities maturities/calls	184,820	118,852	303,798
Equity securities	64,118	70,405	16,109
Other investments	1,076	613	3,722
Purchase of fixed assets	(148,800)	(55,528)	(102,039)
Proceeds from disposal of fixed assets	0	15	777
Loans to agents	(6,382)	(10,098)	(17,611)
Collections on agent loans	9,379	7,472	7,921
Net cash used in investing activities	(185,490)	(243,225)	(124,634)
Cash flows from financing activities
Dividends paid to shareholders	(192,801)	(272,902)	(167,651)
Net payments on long-term borrowings	(2,041)	(1,967)	(1,920)
Net cash used in financing activities	(194,842)	(274,869)	(169,571)
Net increase (decrease) in cash and cash equivalents	22,462	(175,499)	70,322
Cash and cash equivalents, beginning of year	161,240	336,739	266,417
Cash and cash equivalents, end of year	183,702	161,240	336,739
Supplemental disclosure of noncash transactions
Liability incurred to purchase fixed assets	12,802	14,214	6,800
Operating lease assets obtained in exchange for new operating lease liabilities	3,447	4,943	35,483
Transfer of investments from other investments to equity securities	$ 0	$ 13,041	$ 3,310