FAIR VALUE ACCOUNTING AND MEASUREMENT (Fair Value By Balance Sheet Location) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Assets:
Securities - trading	$ 63,887	$ 71,232
Securities—available-for-sale, amortized cost $481,867 and $469,650, respectively	477,407	472,920
Securities - held-to-maturity	98,401	92,458
Carrying Value
Assets:
Cash and due from banks	175,965	181,298
Securities - trading	63,887	71,232
Securities—available-for-sale, amortized cost $481,867 and $469,650, respectively	477,407	472,920
Securities - held-to-maturity	96,545	86,452
Loans receivable held for sale	8,394	11,920
Loans receivable	3,267,042	3,223,794
FHLB stock	35,708	36,705
Bank-owned life insurance	61,442	59,891
MSRs	7,684	6,244
Derivatives	5,109	8,863
Liabilities:
Demand NOW, and money market accounts	1,860,001	1,800,555
Regualr savings	775,260	727,956
Certificates of deposit	900,024	1,029,293
FHLB advances at fair value	20,258	10,304
Junior subordinated debentures at fair value	73,637	73,063
Other borrowings	82,909	76,633
Derivatives	5,089	8,548
Estimated Fair Value
Assets:
Cash and due from banks	175,965	181,298
Securities - trading	63,887	71,232
Securities—available-for-sale, amortized cost $481,867 and $469,650, respectively	477,407	472,920
Securities - held-to-maturity	98,401	92,458
Loans receivable held for sale	8,394	12,059
Loans receivable	3,164,657	3,143,853
FHLB stock	35,708	36,705
Bank-owned life insurance	61,442	59,891
MSRs	7,684	6,244
Derivatives	5,110	8,863
Liabilities:
Demand NOW, and money market accounts	1,714,813	1,729,351
Regualr savings	706,326	694,609
Certificates of deposit	893,768	1,033,931
FHLB advances at fair value	20,258	10,304
Junior subordinated debentures at fair value	73,637	73,063
Other borrowings	82,909	76,633
Derivatives	$ 5,089	$ 8,548