Operating Segments (Tables)

3 Months Ended

Mar. 31, 2024

Segment Reporting [Abstract]

Summary of Operating Results by Segment

Summarized operating results by operating segment were as follows:

	Banking		Frost  Wealth Advisors		Non-Banks		Consolidated
Three months ended:
March 31, 2024
Net interest income (expense)	$	391,805	$	1,669	$	(3,423)	$	390,051
Credit loss expense (benefit)	13,650		—		—		13,650
Non-interest income	66,380		45,426		(429)		111,377
Non-interest expense	286,830		37,973		1,414		326,217
Income (loss) before income taxes	157,705		9,122		(5,266)		161,561
Income tax expense (benefit)	25,635		1,916		(1,680)		25,871
Net income (loss)	132,070		7,206		(3,586)		135,690
Preferred stock dividends	—		—		1,669		1,669
Net income (loss) available to common shareholders	$	132,070	$	7,206	$	(5,255)	$	134,021
Revenues from (expenses to) external customers	$	458,185	$	47,095	$	(3,852)	$	501,428
March 31, 2023
Net interest income (expense)	$	401,318	$	1,654	$	(3,152)	$	399,820
Non-interest income	63,643		42,038		(416)		105,265
Non-interest expense	249,865		33,949		1,328		285,142
Income (loss) before income taxes	205,992		9,743		(4,896)		210,839
Income tax expense (benefit)	32,366		2,046		(1,226)		33,186
Net income (loss)	173,626		7,697		(3,670)		177,653
Preferred stock dividends	—		—		1,669		1,669
Net income (loss) available to common shareholders	$	173,626	$	7,697	$	(5,339)	$	175,984
Revenues from (expenses to) external customers	$	464,961	$	43,692	$	(3,568)	$	505,085