Operating Segments (Tables)

9 Months Ended

Sep. 30, 2020

Segment Reporting [Abstract]

Summary of Operating Results by Segment

Summarized operating results by segment were as follows:

	Banking		Frost  Wealth Advisors		Non-Banks		Consolidated
Revenues from (expenses to) external customers:
Three months ended:
September 30, 2020	$	293,855	$	35,282	$	(2,113)	$	327,024
September 30, 2019	307,312		37,549		(2,630)		342,231
Nine months ended:
September 30, 2020	$	1,003,469	$	111,493	$	(7,090)	$	1,107,872
September 30, 2019	918,672		111,064		(8,182)		1,021,554
Net income (loss):
Three months ended:
September 30, 2020	$	93,507	$	4,130	$	(2,581)	$	95,056
September 30, 2019	110,583		4,106		(2,853)		111,836
Nine months ended:
September 30, 2020	$	238,023	$	13,642	$	(8,784)	$	242,881
September 30, 2019	334,393		15,403		(9,878)		339,918