Investments in Unconsolidated Real Estate Joint Ventures (Statement Of Financial Condition In Unconsolidated Real Estate Joint Ventures) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Schedule of Equity Method Investments [Line Items]
Inventory of real estate	$ 14,505	$ 9,155
Office properties and equipment	17,679	14,824
Total assets	392,936	431,147	470,703
Notes payable	17,923	9,034
Other liabilities	28,464	17,116
Total liabilities	81,656	127,581
Total equity	311,280	303,566	240,324	(16,926)
Total liabilities and equity	392,936	431,147
Equity Method Joint Ventures [Member]
Schedule of Equity Method Investments [Line Items]
Cash	1,375	172
Inventory of real estate	75,395	23,321
Office properties and equipment	3,996
Other assets	4,423	557
Total assets	85,189	24,050
Notes payable	34,951	16,057
Other liabilities	9,333	1,571
Total liabilities	44,284	17,628
Total equity	40,905	6,422
Total liabilities and equity	$ 85,189	$ 24,050