Schedule III-Supplementary Insurance Information

12 Months Ended

Dec. 31, 2023

Supplementary Insurance Information [Abstract]

Schedule III-Supplementary Insurance Information

RLI CORP. AND SUBSIDIARIES

SCHEDULE III—SUPPLEMENTARY INSURANCE INFORMATION

As of and for the years ended December 31, 2023, 2022 and 2021

									Incurred losses
	Deferred policy		Unpaid losses		Unearned		Net		and settlement
	acquisition		and settlement		premiums,		premiums		expenses
(in thousands)	costs		expenses, gross		gross		earned		current year
Year ended December 31, 2023
Casualty segment	$	73,334	$	2,043,556	$	491,479	$	758,346	$	496,530
Property segment		46,366		301,907		314,945		401,530		193,258
Surety segment		26,866		100,562		85,902		134,430		23,172
RLI Insurance Group	$	146,566	$	2,446,025	$	892,326	$	1,294,306	$	712,960
Year ended December 31, 2022
Casualty segment	$	66,285	$	1,929,091	$	466,178	$	711,832	$	468,661
Property segment		36,767		293,737		237,369		307,886		145,672
Surety segment		24,807		92,809		81,538		124,718		22,622
RLI Insurance Group	$	127,859	$	2,315,637	$	785,085	$	1,144,436	$	636,955
Year ended December 31, 2021
Casualty segment	$	55,760	$	1,760,469	$	438,248	$	633,639	$	420,259
Property segment		25,764		196,369		168,209		231,837		140,905
Surety segment		22,029		86,717		73,987		115,427		20,901
RLI Insurance Group	$	103,553	$	2,043,555	$	680,444	$	980,903	$	582,065

NOTE 1: Investment income is not allocated to the segments, therefore, net investment income has not been provided.

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

RLI CORP. AND SUBSIDIARIES

SCHEDULE III—SUPPLEMENTARY INSURANCE INFORMATION

(continued)

As of and for the years ended December 31, 2023, 2022 and 2021

	Incurred
	losses and
	settlement		Policy		Other		Net
	expenses		acquisition		operating		premiums
(in thousands)	prior year		costs		expenses		written
Year ended December 31, 2023
Casualty segment	$	(78,498)	$	221,589	$	59,246	$	788,982
Property segment		(21,196)		116,344		26,808		500,057
Surety segment		(8,853)		80,392		12,329		138,708
RLI Insurance Group	$	(108,547)	$	418,325	$	98,383	$	1,427,747
Year ended December 31, 2022
Casualty segment	$	(87,225)	$	204,397	$	52,210	$	744,607
Property segment		(24,927)		95,203		19,416		364,644
Surety segment		(10,427)		70,032		10,586		132,285
RLI Insurance Group	$	(122,579)	$	369,632	$	82,212	$	1,241,536
Year ended December 31, 2021
Casualty segment	$	(108,632)	$	179,354	$	47,139	$	674,709
Property segment		(10,981)		72,008		18,605		262,816
Surety segment		(5,850)		66,106		11,163		120,008
RLI Insurance Group	$	(125,463)	$	317,468	$	76,907	$	1,057,533

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