Discontinued Operations (Consolidated Net Cash Outflows Associated With The Sale) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loans receivable	$ 26,844,000	$ 72,226,000
Office properties and equipment	17,679,000	14,824,000
Other assets	4,019,000	6,518,000
Total assets	392,936,000	431,147,000	470,703,000
Deposits	0	0
Other liabilities	(28,464,000)	(17,116,000)
Total liabilities	(81,656,000)	(127,581,000)
Bank Atlantic [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Tax certificates			16,630,000
Loans receivable			1,792,026,000
Securities available for sale			29,781,000
Office properties and equipment			129,025,000
Other assets			60,113,000
Total assets			2,027,575,000
Deposits			(3,458,914,000)
Subordinated debentures			(22,000,000)
Other liabilities			(28,920,000)
Total liabilities			(3,509,834,000)
Gain on sale of BankAtlantic			290,642,000
Net cash outflows from sale of BankAtlantic			$ (1,191,617,000)