Condensed Consolidated Statements Of Financial Condition (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Assets
Cash and due from banks	$ 74,889	$ 74,967
Interest-bearing bank deposits	6,663	3,511
Securities available for sale, at fair value	1,206,943	1,142,776
Other investments	37,806	39,796
Loans held for sale	8,076	13,412
Loans:
Portfolio loans	4,128,588	4,043,643
Allowance for credit losses	(60,732)	(61,234)
Net loans	4,067,856	3,982,409
Premises and equipment, net	67,482	66,755
Other real estate owned	21,335	30,035
Goodwill	159,956	159,956
Amortizing intangibles, net	3,472	3,843
Other assets	314,166	323,662
Total assets	5,968,644	5,841,122
Liabilities
Noninterest-bearing	818,896	780,377
Interest-bearing	3,814,935	3,724,307
Total deposits	4,633,831	4,504,684
Short-term borrowings	309,373	312,777
Subordinated debentures	105,750	105,750
Other long-term debt	101,018	101,664
Total long-term debt	206,768	207,414
Other liabilities	51,314	57,704
Total liabilities	5,201,286	5,082,579
Shareholders' Equity
Preferred stock, $1 par value per share, 3,000,000 shares authorized, none issued	0	0
Common stock, $1 par value per share, 200,000,000 shares authorized; 105,563,455 shares issued at March 31, 2012 and December 31, 2011 and 105,050,018 and 104,916,994 shares outstanding at March 31, 2012 and December 31, 2011, respectively	105,563	105,563
Additional paid-in capital	365,707	365,868
Retained earnings	301,194	294,056
Accumulated other comprehensive income , net	3,040	2,001
Treasury stock (513,437 and 646,461 shares at March 31, 2012 and December 31, 2011, respectively)	(7,046)	(7,345)
Unearned ESOP shares	(1,100)	(1,600)
Total shareholders' equity	767,358	758,543
Total liabilities and shareholders' equity	$ 5,968,644	$ 5,841,122