Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
ASSETS
Loans	$ 9,638,645	$ 9,177,478
Allowance for loan losses	(175,032)	(184,532)
Net loans	9,463,613	8,992,946
Loans held for sale	8,741	31,076
Investment securities:
Available for sale ($629,599 and $418,046 pledged in 2012 and 2011, respectively, to secure repurchase agreements)	9,020,951	9,224,702
Trading	13,595	17,853
Non-marketable	117,540	115,832
Total investment securities	9,152,086	9,358,387
Short-term federal funds sold and securities purchased under agreements to resell	10,475	11,870
Long-term securities purchased under agreements to resell	850,000	850,000
Interest earning deposits with banks	132,144	39,853
Cash and due from banks	426,742	465,828
Land, buildings and equipment, net	350,040	360,146
Goodwill	125,585	125,585
Other intangible assets, net	5,804	7,714
Other assets	353,539	405,962
Total assets	20,878,769	20,649,367
LIABILITIES AND EQUITY
Non-interest bearing	5,814,932	5,377,549
Savings, interest checking and money market	9,025,688	8,933,941
Time open and C.D.'s of less than $100,000	1,094,215	1,166,104
Time open and C.D.'s of $100,000 and over	914,795	1,322,289
Total deposits	16,849,630	16,799,883
Federal funds purchased and securities sold under agreements to repurchase	1,257,949	1,256,081
Other borrowings	103,744	111,817
Other liabilities	360,374	311,225
Total liabilities	18,571,697	18,479,006
Commerce Bancshares, Inc. stockholders' equity:
Preferred stock, $1 par value Authorized and unissued 2,000,000 shares	0	0
Common stock, $5 par value Authorized 100,000,000 shares; issued 89,277,398 shares in 2012 and 2011	446,387	446,387
Capital surplus	1,033,515	1,042,065
Retained earnings	717,138	575,419
Treasury stock of 1,581,929 shares in 2012 and 217,755 shares in 2011, at cost	(60,644)	(8,362)
Accumulated other comprehensive income	166,040	110,538
Total Commerce Bancshares, Inc. stockholders' equity	2,302,436	2,166,047
Non-controlling interest	4,636	4,314
Total equity	2,307,072	2,170,361
Total liabilities and equity	$ 20,878,769	$ 20,649,367