Consolidated Balance Sheets - USD ($) shares in Thousands, $ in Thousands		Mar. 31, 2017	Dec. 31, 2016
ASSETS
Cash and due from banks		$ 169,697	$ 193,038
Interest-earning deposits with banks		13,124	31,200
Total cash and cash equivalents		182,821	224,238
Securities available for sale at fair value (amortized cost of $2,349,149 and $2,299,037, respectively)		2,331,359	2,278,577
Federal Home Loan Bank stock at cost		10,600	10,240
Loans held for sale		3,245	5,846
Loans, net of unearned income of ($32,212) and ($33,718), respectively		6,228,136	6,213,423
Less: allowance for loan and lease losses		71,021	70,043
Loans, net		6,157,115	6,143,380
FDIC loss-sharing asset		3,239	3,535
Interest receivable		31,345	30,074
Premises and equipment, net		148,541	150,342
Other real estate owned		4,519	5,998
Goodwill		382,762	382,762
Other intangible assets, net		16,282	17,631
Other assets		255,444	256,984
Total assets		9,527,272	9,509,607
LIABILITIES AND SHAREHOLDERS' EQUITY
Noninterest-bearing		3,958,106	3,944,495
Interest-bearing		4,130,721	4,114,920
Total deposits		8,088,827	8,059,415
Federal Home Loan Bank advances		15,483	6,493
Securities sold under agreements to repurchase		46,914	80,822
Other liabilities		100,705	111,865
Total liabilities		8,251,929	8,258,595
Commitments and contingent liabilities (Note 10)
Shareholders' equity:
Preferred Stock, Shares Authorized		2,000	2,000
Preferred Stock, Shares Issued		0	9
Preferred Stock, Value, Issued		$ 0	$ 2,217
Authorized shares		115,000	115,000
Common Stock Shares Issued And Outstanding		58,329	58,042
Common Stock (no par value)		$ 999,702	$ 995,837
Retained earnings		288,247	271,957
Accumulated other comprehensive loss	[1]	(12,606)	(18,999)
Total shareholders’ equity		1,275,343	1,251,012
Total liabilities and shareholders’ equity		$ 9,527,272	$ 9,509,607

[1] All amounts are net of tax. Amounts in parenthesis indicate debits.