Schedule IV. Reinsurance

12 Months Ended

Dec. 31, 2020

SEC Schedule, 12-17, Insurance Companies, Reinsurance [Abstract]

Schedule IV. Reinsurance

Schedule IV. Reinsurance

(In thousands)	Gross Amount		Ceded to Other Companies		Assumed From Other Companies		Net Amount		Percentage of Amount Assumed to Net Earned
Year Ended December 31, 2020
Premiums earned
Property and casualty insurance	$	1,106,327	$	84,924	$	33,679	$	1,055,082	3.19	%
Year Ended December 31, 2019
Premiums earned
Property and casualty insurance	$	1,133,583	$	72,023	$	25,412	$	1,086,972	2.34	%
Year Ended December 31, 2018
Premiums earned
Property and casualty insurance	$	1,083,981	$	63,487	$	16,957	$	1,037,451	1.63	%