CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
ASSETS
Cash and due from banks	$ 125,949	$ 149,653
Interest-bearing deposits with other banks	24,101	375,398
Investment securities available-for-sale, at market value (cost $719,252 at March 31, 2012 and $1,421,490 at December 31, 2011)	736,309	1,441,846
Investment securities held-to-maturity (market value $916,727 at March 31, 2012 and $2,893 at December 31, 2011)	917,758	2,664
Other investments	71,492	71,492
Loans held for sale	21,052	24,834
Loans:
Commercial	831,101	856,981
Real estate-construction	104,305	114,974
Real estate-commercial	1,262,775	1,233,067
Real estate-residential	288,922	287,980
Installment	63,793	67,543
Home equity	359,711	358,960
Credit card	31,149	31,631
Lease financing	21,794	17,311
Total	2,963,550	2,968,447
Less: Allowance for loan losses	49,437	52,576
Net loans - uncovered	2,914,113	2,915,871
Covered loans	986,619	1,053,244
Less: Allowance for loan losses	46,156	42,835
Net loans - covered	940,463	1,010,409
Net loans	3,854,576	3,926,280
Premises and equipment	141,664	138,096
Goodwill	95,050	95,050
Other intangibles	10,193	10,844
FDIC indemnification asset	156,397	173,009
Accrued interest and other assets	262,027	262,345
TOTAL ASSETS	6,416,568	6,671,511
Deposits:
Interest-bearing	1,289,490	1,317,339
Savings	1,613,244	1,724,659
Time	1,491,132	1,654,662
Total interest-bearing deposits	4,393,866	4,696,660
Noninterest-bearing	1,007,049	946,180
Total deposits	5,400,915	5,642,840
Federal funds purchased and securities sold under agreements to repurchase	78,619	99,431
Long-term debt	75,745	76,544
Total borrowed funds	154,364	175,975
Accrued interest and other liabilities	146,596	140,475
TOTAL LIABILITIES	5,701,875	5,959,290
SHAREHOLDERS' EQUITY
Common stock - no par value Authorized - 160,000,000 shares Issued - 68,730,731 shares in 2012 and 2011	575,675	579,871
Retained earnings	330,563	331,351
Accumulated other comprehensive loss	(18,687)	(21,490)
Treasury stock, at cost, 10,191,273 shares in 2012 and 10,463,677 shares in 2011	(172,858)	(177,511)
TOTAL SHAREHOLDERS' EQUITY	714,693	712,221
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 6,416,568	$ 6,671,511