Consolidated Statements Of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
INTEREST INCOME
Interest and fees on loans	$ 167,709	$ 154,135	$ 334,141	$ 301,150
Interest and fees on loans held for sale	361	372	695	676
Interest on investment securities	64,658	65,564	120,080	118,806
Interest on federal funds sold and short-term securities purchased under agreements to resell	11	177	44	357
Interest on long-term securities purchased under agreements to resell	3,687	3,785	7,445	7,899
Interest on deposits with banks	1,986	1,590	3,872	2,730
Total interest income	238,412	225,623	466,277	431,618
INTEREST EXPENSE
Savings, interest checking and money market	10,254	6,519	19,856	12,108
Certificates of deposit of less than $100,000	1,531	694	2,790	1,356
Certificates of deposit of $100,000 and over	6,931	3,483	12,933	6,322
Interest on federal funds purchased and securities sold under agreements to repurchase	8,057	3,956	15,566	7,957
Interest on other borrowings	5	12	10	24
Total interest expense	26,778	14,664	51,155	27,767
Net interest income	211,634	210,959	415,122	403,851
Provision for loan losses	11,806	10,043	24,269	20,439
Net interest income after provision for loan losses	199,828	200,916	390,853	383,412
NON-INTEREST INCOME
Bank card transaction fees	42,646	43,215	82,290	84,668
Trust fee revenue	38,375	37,036	75,631	73,098
Deposit fee revenue	23,959	23,893	46,977	46,875
Capital market fees	1,944	1,992	3,823	4,283
Consumer brokerage services	3,888	3,971	7,635	7,739
Loan fees and sales	4,238	3,229	7,547	6,091
Other	12,209	11,514	24,596	21,786
Total non-interest income	127,259	124,850	248,499	244,540
INVESTMENT SECURITIES GAINS (LOSSES), NET
Investment securities gains (losses), net	(110)	(3,075)	(1,035)	2,335
NON-INTEREST EXPENSE
Salaries and employee benefits	120,062	115,589	242,190	231,483
Net occupancy	11,145	11,118	22,646	22,702
Equipment	4,790	4,594	9,261	9,025
Supplies and communication	5,275	5,126	10,437	10,439
Data processing and software	23,248	21,016	45,508	41,706
Marketing	6,015	5,142	11,915	9,947
Deposit insurance	1,693	3,126	3,403	6,583
Community Service	641	656	1,444	1,385
Other	16,910	15,493	34,400	30,867
Total non-interest expense	189,779	181,860	381,204	364,137
Income before income taxes	137,198	140,831	257,113	266,150
Less income taxes	28,899	29,507	51,759	52,765
Net income	108,299	111,324	205,354	213,385
Less non-controlling interest expense (income)	328	994	245	2,071
Net income attributable to Commerce Bancshares, Inc.	107,971	110,330	205,109	211,314
Preferred Stock Dividends	2,250	2,250	4,500	4,500
Net Income (Loss) Available to Common Stockholders	$ 105,721	$ 108,080	$ 200,609	$ 206,814
Net income per common share — basic	$ 0.96	$ 0.96	$ 1.81	$ 1.84
Net income per common share — diluted	$ 0.96	$ 0.96	$ 1.81	$ 1.84