Other Assets and Other Liabilities (Schedule of Other Liabilities) (Details) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2016 USD ($) property	Mar. 31, 2015 USD ($)	Dec. 31, 2015 USD ($)
Real Estate Properties [Line Items]
Other Liabilities	$ 85,327		$ 80,332
Accrued expenses	65,226		68,937
Accrued interest payable	42,220		55,081
Intangible liabilities, net	10,190		10,485
Accounts payable, accrued expenses and other liabilities	202,963		214,835
Profit sharing payable	14,500		14,500
Special assessment bond	7,300		6,600
Payable for common share repurchases	300		900
Deferred finance costs, net	800
Below market lease, accumulated amortization	6,500		6,600
Amortization of below market lease	300	$ 400
Other assets	39,428		36,999
Real Estate Available and Held for Sale
Real Estate Properties [Line Items]
Accrued expenses	$ 3,900		5,300
Residential Real Estate \| Master Planned Community
Real Estate Properties [Line Items]
Number of properties \| property	2
Real Estate Asses Held-for-Sale
Real Estate Properties [Line Items]
Other Liabilities	$ 4,600		4,400
Land Parcel
Real Estate Properties [Line Items]
Deferred revenue			5,700
Other assets	7,000		7,000
Non Cash Member
Real Estate Properties [Line Items]
Capital expenditures incurred but not yet paid	29,200		$ 26,200
Landanddevelopment2 [Member] [Member]
Real Estate Properties [Line Items]
Deferred revenue	$ 6,000

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include property accounts payable, legal liabilities, loan costs, general and administrative liabilities, but exclude interest.

No definition available.