Common Stock (Tables)

12 Months Ended

Dec. 31, 2023

Common Stock, Number of Shares, Par Value and Other Disclosure [Abstract]

Summary Of Components Used To Calculate Basic And Diluted Income Per Share

(In thousands, except per share data)	2023		2022		2021
Basic income per common share:
Net income attributable to Commerce Bancshares, Inc.	$	477,060	$	488,399	$	530,765
Less income allocated to nonvested restricted stock	4,241		4,450		4,846
Net income allocated to common stock	$	472,819	$	483,949	$	525,919
Weighted average common shares outstanding	129,922		131,539		134,125
Basic income per common share	$	3.64	$	3.68	$	3.92
Diluted income per common share:
Net income attributable to Commerce Bancshares, Inc.	$	477,060	$	488,399	$	530,765
Less income allocated to nonvested restricted stock	4,237		4,442		4,838
Net income allocated to common stock	$	472,823	$	483,957	$	525,927
Weighted average common shares outstanding	129,922		131,539		134,125
Net effect of the assumed exercise of stock-based awards - based on the treasury stock method using the average market price for the respective periods	150		299		315
Weighted average diluted common shares outstanding	130,072		131,838		134,440
Diluted income per common share	$	3.64	$	3.67	$	3.91

Schedule Of Activity In The Outstanding Shares Of The Company's Common Stock

The table below shows activity in the outstanding shares of the Company’s common stock during the past three years. Shares in the table below are presented on an historical basis and have not been restated for the annual 5% stock dividends.

	Years Ended December 31
(In thousands)	2023	2022	2021
Shares outstanding at January 1	124,999	121,436	117,138
Issuance of stock:
Awards and sales under employee and director plans	348	306	328
5% stock dividend	6,201	5,953	5,790
Other purchases of treasury stock	(1,355)	(2,684)	(1,807)
Other	(17)	(12)	(13)
Shares outstanding at December 31	130,176	124,999	121,436