Debt Obligations, net (Encumbered/Unencumbered Assets) (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Real estate, net	$ 1,374,610	$ 1,593,983
Real estate available and held for sale	101,488	137,274
Land and development, net	1,022,106	1,001,963
Loans receivable and other lending investments, net	1,632,186	1,601,985
Other investments	262,496	254,172
Cash and other assets	845,128	1,008,415
Total assets	5,238,014	5,597,792
Loans receivable, net	1,569,634	1,539,696
Total loan participations payable, net
Debt Instrument [Line Items]
Loans receivable, net	205,600	153,000
Collectively Evaluated for Impairment
Debt Instrument [Line Items]
General reserves for loan losses	21,200	36,000
Encumbered Assets
Debt Instrument [Line Items]
Real estate, net	895,041	816,721
Real estate available and held for sale	0	10,593
Land and development, net	35,164	17,714
Loans receivable and other lending investments, net	175,365	170,162
Other investments	0	22,352
Cash and other assets	0	0
Total assets	1,105,570	1,037,542
Unencumbered Assets
Debt Instrument [Line Items]
Real estate, net	479,569	777,262
Real estate available and held for sale	101,488	126,681
Land and development, net	986,942	984,249
Loans receivable and other lending investments, net	1,272,458	1,314,823
Other investments	262,496	231,820
Cash and other assets	845,128	1,008,415
Total assets	$ 3,948,081	$ 4,443,250

Sum of all assets excluding the Company's Total Portfolio Assets.

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Amount representing an agreement for an unconditional promise by the maker to pay the Entity (holder) a definite sum of money at a future date, net of any write-downs taken for collection uncertainty on the part of the holder. Such amount may include accrued interest receivable in accordance with the terms of the note. The note also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among myriad other features and characteristics. In addition, amount also includes total debt and equity financial instruments including: securities held-to-maturity and securities available-for-sale.

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Carrying amount as of the balance sheet date of investments in land and buildings held for sale, including real estate considered to be inventory of the entity.

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Real Estate Investment Property, Held for Use, Net

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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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-Publisher SEC
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-Section 03
-Paragraph 12
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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Carrying amount as of the balance sheet date, net of valuation allowances and impairment losses, of costs of land expected to be developed in the near term plus capitalized costs of development, for purposes of selling completed units to home buyers or commercial or industrial entities..

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes loans held for sale. Excludes loans and leases covered under loss sharing agreements.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Other investments not otherwise specified in the taxonomy.

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