General - Effects of Reinsurance (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Premiums Written
Direct	$ 1,018,200	$ 953,400
Premiums Earned
Ceded	17,000	16,000
Net	962,550	915,922
Property & Casualty
Premiums Written
Direct	1,011,385	946,606
Ceded	(17,601)	(15,643)
Assumed	10,165	12,669
Net	1,003,949	943,632
Premiums Earned
Direct	970,163	921,067
Ceded	(17,462)	(15,543)
Assumed	2,717	3,291
Net	$ 955,418	$ 908,815

Amount of earned premiums assumed from other entities.

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