Consolidated Statements of Financial Condition (Current Period Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	Jun. 30, 2013		Dec. 31, 2012
Cash and due from banks	$ 130,992		$ 149,420
Interest-bearing deposits in other banks	653,113		566,846
Trading securities, at fair value	15,451		14,162
Securities available-for-sale, at fair value	1,223,486		1,082,403
Securities held-to-maturity, at amortized cost	30,373		34,295
Federal Home Loan Bank (“FHLB”) and Federal Reserve Bank stock, at cost	35,161		47,232
Loans, excluding covered loans	5,287,565		5,189,676
Covered loans	171,861	[1]	197,894	[1]
Allowance for loan and covered loan losses	(94,110)		(99,446)
Net loans	5,365,316		5,288,124
Other real estate owned (“OREO”), excluding covered OREO	39,497		39,953
Covered OREO	13,681		13,123
Federal Deposit Insurance Corporation (“FDIC”) indemnification asset	23,158		37,051
Premises, furniture, and equipment	118,285		121,596
Accrued interest receivable	27,626		27,535
Investment in bank-owned life insurance (“BOLI”)	207,081		206,405
Goodwill and other intangible assets	279,421		281,059
Other assets	180,684		190,635
Total assets	8,343,325		8,099,839
Liabilities
Noninterest-bearing deposits	1,855,906		1,762,903
Interest-bearing deposits	5,010,841		4,909,352
Total deposits	6,866,747		6,672,255
Borrowed funds	196,603		185,984
Senior and subordinated debt	214,843		214,779
Accrued interest payable and other liabilities	90,479		85,928
Total liabilities	7,368,672		7,158,946
Stockholders’ Equity
Common stock	858		858
Additional paid-in capital	411,470		418,318
Retained earnings	813,516		786,453
Accumulated other comprehensive loss, net of tax	(10,299)		(15,660)
Treasury stock, at cost	(240,892)		(249,076)
Total stockholders’ equity	974,653		940,893
Total liabilities and stockholders’ equity	$ 8,343,325		$ 8,099,839
Per Common Share Data
Par Value (in Dollars per share)	$ 0.01		$ 0.01
Shares authorized (in Shares)	100,000		100,000
Shares issued (in Shares)	85,787		85,787
Shares outstanding (in Shares)	75,063		74,840
Treasury shares (in Shares)	10,724		10,947

[1] For information on covered loans, refer to Note 5, "Acquired Loans."