LOANS AND ALLOWANCE FOR LOAN LOSSES (Allowance For Credit Losses On Financing Receivables By Portfolio Segments) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Allowance for loan losses:
Balance, beginning of period	$ 81,033	$ 91,602	$ 137,710
Charge-offs	(21,923)	(25,835)	(78,070)
Recoveries	14,764	20,266	29,962
(Benefit) provision for loan losses	(7,000)	(5,000)	2,000
Balance, end of period	66,874	81,033	91,602
Commercial and Industrial [Member]
Allowance for loan losses:
Balance, beginning of period	13,401	13,572
Charge-offs	(4,898)	(5,578)
Recoveries	4,687	5,302
(Benefit) provision for loan losses	(616)	105
Balance, end of period	12,574	13,401
Real Estate Construction and Development [Member]
Allowance for loan losses:
Balance, beginning of period	7,407	14,434
Charge-offs	(132)	(448)
Recoveries	2,060	7,165
(Benefit) provision for loan losses	(5,845)	(13,744)
Balance, end of period	3,490	7,407
One-to-Four-Family Residential [Member]
Allowance for loan losses:
Balance, beginning of period	32,619	38,897
Charge-offs	(6,611)	(12,747)
Recoveries	4,330	4,455
(Benefit) provision for loan losses	(6,283)	2,014
Balance, end of period	24,055	32,619
Multi-family residential [Member]
Allowance for loan losses:
Balance, beginning of period	5,249	4,252
Charge-offs	(8,828)	(162)
Recoveries	212	145
(Benefit) provision for loan losses	8,997	1,014
Balance, end of period	5,630	5,249
Commercial Real Estate [Member]
Allowance for loan losses:
Balance, beginning of period	22,052	20,048
Charge-offs	(1,333)	(6,720)
Recoveries	3,345	3,067
(Benefit) provision for loan losses	(3,081)	5,657
Balance, end of period	20,983	22,052
Consumer and installment [Member]
Allowance for loan losses:
Balance, beginning of period	305	399
Charge-offs	(121)	(180)
Recoveries	130	132
(Benefit) provision for loan losses	(172)	(46)
Balance, end of period	$ 142	$ 305