Schedule IV-Reinsurance

12 Months Ended

Dec. 31, 2023

Supplemental Schedule Of Reinsurance Premiums For Insurance Companies [Abstract]

Schedule IV-Reinsurance

RLI CORP. AND SUBSIDIARIES

SCHEDULE IV—REINSURANCE

Years ended December 31, 2023, 2022 and 2021

									Percentage
			Ceded to		Assumed				of amount
	Direct		other		from other		Net		assumed
(in thousands)	amount		companies		companies		amount		to net
2023
Casualty segment	$	909,081	$	178,018	$	27,283	$	758,346	3.6	%
Property segment		619,250		218,265		545		401,530	0.1	%
Surety segment		142,713		8,830		547		134,430	0.4	%
RLI Insurance Group premiums earned	$	1,671,044	$	405,113	$	28,375	$	1,294,306	2.2	%
2022
Casualty segment	$	863,530	$	186,469	$	34,771	$	711,832	4.9	%
Property segment		430,010		122,415		291		307,886	0.1	%
Surety segment		131,625		7,525		618		124,718	0.5	%
RLI Insurance Group premiums earned	$	1,425,165	$	316,409	$	35,680	$	1,144,436	3.1	%
2021
Casualty segment	$	788,741	$	185,433	$	30,331	$	633,639	4.8	%
Property segment		310,630		79,094		301		231,837	0.1	%
Surety segment		122,975		7,866		318		115,427	0.3	%
RLI Insurance Group premiums earned	$	1,222,346	$	272,393	$	30,950	$	980,903	3.2	%

See the accompanying reports of independent registered public accounting firms starting on page 90 of this report.