Condensed Consolidated Statements of Financial Condition (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Assets
Cash and due from banks	$ 53,991	$ 98,724
Interest-bearing bank deposits	1,780	4,258
Securities available for sale, at fair value	1,297,203	1,171,303
Other investments	28,357	28,228
Loans:
Portfolio loans	4,218,810	4,204,704
Allowance for credit losses	(62,262)	(67,187)
Net loans	4,156,548	4,137,517
Premises and equipment, net	69,009	68,970
Other real estate owned	10,933	11,262
Goodwill	159,956	159,956
Amortizing intangibles, net	2,017	2,375
Bank owned life insurance	172,175	170,925
Other assets	147,070	141,872
Total assets	6,099,039	5,995,390
Deposits (all domestic):
Noninterest-bearing	883,307	883,269
Interest-bearing	3,828,271	3,674,612
Total deposits	4,711,578	4,557,881
Short-term borrowings	308,100	356,227
Subordinated debentures	105,750	105,750
Other long-term debt	174,318	174,471
Total long-term debt	280,068	280,221
Other liabilities	51,565	55,054
Total liabilities	5,351,311	5,249,383
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, 2013 and December 31, 2012 and 99,298,120 and 99,629,494 shares outstanding at March 31, 2013 and December 31, 2012, respectively	105,563	105,563
Additional paid-in capital	365,354	365,354
Retained earnings	321,185	315,608
Accumulated other comprehensive (loss) income, net	(312)	1,259
Treasury stock (6,265,335 and 5,933,961 shares at March 31, 2013 and December 31, 2012, respectively)	(44,062)	(41,777)
Total shareholders’ equity	747,728	746,007
Total liabilities and shareholders’ equity	$ 6,099,039	$ 5,995,390