Consolidated Statements Of Income - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
INTEREST INCOME
Interest and fees on loans		$ 264,677	$ 223,816
Interest and fees on loans held for sale		40	145
Interest on investment securities		65,928	71,119
Interest on federal funds sold and short-term securities purchased under agreements to resell		10	489
Interest on Long-Term Securities Purchased Under Agreements To Resell		1,634	3,952
Interest on deposits with banks		26,432	9,336
Total interest income		358,721	308,857
INTEREST EXPENSE
Savings, interest checking and money market		55,580	20,151
Certificates of deposit of less than $100,000		10,191	1,425
Certificates of deposit of $100,000 and over		18,096	6,627
Interest Expense, Federal Funds Purchased		4,419	5,586
Interest Expense, Securities Sold under Agreements to Repurchase		21,438	17,495
Interest on other borrowings		(2)	5,950
Total interest expense		109,722	57,234
Net interest income		248,999	251,623
Provision for credit losses		4,787	11,456
Net interest income after credit losses		244,212	240,167
NON-INTEREST INCOME
Trust fee revenue		51,105	45,328
Bank card transaction fees		46,930	46,654
Deposit account charges and other fees		24,151	21,752
Consumer brokerage services		4,408	5,085
Capital market fees		3,892	3,362
Loan fees and sales		3,141	2,589
Other		15,221	12,842
Total non-interest income		148,848	137,612
INVESTMENT SECURITIES GAINS (LOSSES), NET
INVESTMENT SECURITIES GAINS (LOSSES), NET	[1]	(259)	(306)
NON-INTEREST EXPENSE
Salaries and employee benefits		151,801	144,373
Data processing and software		31,153	28,154
Net occupancy		13,574	12,759
Deposit insurance		8,017	4,643
Equipment		5,010	4,850
Supplies and communication		4,744	4,590
Marketing		4,036	5,471
Other		27,362	19,267
Total non-interest expense		245,697	224,107
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest		147,104	153,366
Less income taxes		31,652	32,813
Net income		115,452	120,553
Less non-controlling interest expense (income)		2,789	1,101
Net income attributable to Commerce Bancshares, Inc.		$ 112,663	$ 119,452
Net income per common share — basic		$ 0.87	$ 0.91
Net income per common share — diluted		$ 0.86	$ 0.91

[1] Available for sale debt securities, equity securities, and other securities.