Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013		Dec. 31, 2012
ASSETS
Cash and due from banks	$ 200,282		$ 124,573
Interest-earning deposits with banks	54,470		389,353
Total cash and cash equivalents	254,752		513,926
Securities available for sale at fair value (amortized cost of $1,572,523 and $969,359, respectively)	1,569,651		1,001,665
Federal Home Loan Bank stock at cost	32,833		21,819
Loans held for sale	840		2,563
Loans, net	4,440,048		2,864,803
FDIC loss sharing asset	53,559		96,354
Interest receivable	24,114		14,268
Premises and equipment, net	158,375		118,708
Other real estate owned ($12,730 and $16,311 covered by FDIC loss share, respectively)	36,273		26,987
Goodwill	345,231		115,554
Intangible Assets, Net (Excluding Goodwill)	27,509		15,721
Other assets	207,112		113,967
Total Assets	7,150,297		4,906,335
LIABILITIES AND SHAREHOLDERS' EQUITY
Noninterest-bearing	2,110,887		1,321,171
Interest-bearing	3,838,080		2,720,914
Total deposits	5,948,967		4,042,085
Federal Home Loan Bank advances	34,632		6,644
Securities sold under agreements to repurchase	25,000		25,000
Other liabilities	95,901		68,598
Total liabilities	6,104,500		4,142,327
Commitments and contingent liabilities
Preferred Stock, Shares Authorized	2,000		0
Preferred Stock, Shares Issued	9		0
Preferred Stock, Value, Issued	2,217		0
Shareholders' equity:
Authorized shares	63,033		63,033
Common Stock Shares Issued And Outstanding	51,271		39,686
Common Stock (no par value)	858,596		581,471
Retained earnings	188,192		162,388
Accumulated other comprehensive income	(3,208)	[1]	20,149	[1]
Total shareholders' equity	1,045,797		764,008
Total Liabilities and Shareholders' Equity	7,150,297		4,906,335
Noncovered Loans [Member]
ASSETS
Loans held for sale	840		2,563
Loans, excluding covered loans, net of unearned income of ($75,293) and ($7,767), respectively	4,193,732		2,525,710
Loans and Leases Receivable, Allowance	55,844		52,244
Loans, net	4,137,888		2,473,466
Other real estate owned ($12,730 and $16,311 covered by FDIC loss share, respectively)	23,543		10,676
Covered Loans [Member]
ASSETS
Loans and Leases Receivable, Allowance	22,737		30,056
Loans, net	302,160		391,337
Other real estate owned ($12,730 and $16,311 covered by FDIC loss share, respectively)	$ 12,730		$ 16,311

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