Consolidated Statements of Financial Condition (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
ASSETS
Cash and due from banks	$ 80,273	$ 100,053
Short-term investments	1,385	1,171
Total cash and cash equivalents	81,658	101,224
Securities available for sale, at fair value	1,130,141	1,157,594
Investment securities held to maturity (fair value of $362,264 at March 31, 2014 (unaudited) and $355,913 at December 31, 2013)	357,602	357,500
Federal Home Loan Bank stock	59,132	58,070
Loans	5,257,774	5,194,813
Less allowance for loan losses	63,420	64,664
Net loans	5,194,354	5,130,149
Foreclosed assets, net	6,558	5,486
Banking premises and equipment, net	68,513	66,448
Accrued interest receivable	21,740	22,956
Intangible assets	356,153	356,432
Bank-owned life insurance	151,813	150,511
Other assets	73,162	80,958
Total assets	7,500,826	7,487,328
Deposits:
Demand deposits	3,494,124	3,473,724
Savings deposits	928,240	921,993
Certificates of deposit of $100,000 or more	255,165	270,631
Other time deposits	513,891	536,123
Total deposits	5,191,420	5,202,471
Mortgage escrow deposits	22,228	20,376
Borrowed funds	1,220,212	1,203,879
Other liabilities	45,625	49,849
Total liabilities	6,479,485	6,476,575
Stockholders’ Equity:
Preferred stock, $0.01 par value, 50,000,000 shares authorized, none issued	0	0
Common stock, $0.01 par value, 200,000,000 shares authorized, 83,209,293 shares issued and 59,857,822 shares outstanding at March 31, 2014 and 59,917,649 outstanding at December 31, 2013	832	832
Additional paid-in capital	1,023,595	1,026,144
Retained earnings	435,602	427,763
Accumulated other comprehensive loss	(973)	(4,851)
Treasury stock	(389,674)	(390,380)
Unallocated common stock held by the Employee Stock Ownership Plan	(48,041)	(48,755)
Common stock acquired by the Directors’ Deferred Fee Plan	(7,182)	(7,205)
Deferred compensation – Directors’ Deferred Fee Plan	7,182	7,205
Total stockholders’ equity	1,021,341	1,010,753
Total liabilities and stockholders’ equity	$ 7,500,826	$ 7,487,328