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Loans Receivable and Other Lending Investments, net (Schedule of Loans Receivable) (Details) - USD ($) $ in Thousands | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jun. 30, 2015 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Valuation Allowances and Reserves, Deductions |  | $ 28,513 | $ 281,285 | $ 152,784 |
Total gross carrying value of loans |  | 1,647,861 | 1,288,662 |  |
Reserves for loan losses |  | (108,165) | (98,490) | (377,204) | $ (524,499)
Total loans receivable, net |  | 1,539,696 | 1,190,172 |  |
Other lending investments—securities |  | 62,289 | 187,671 |  |
Total loans receivable and other lending investments, net |  | 1,601,985 | 1,377,843 |  |
Interest receivable |  | 9,000 | 7,000 |  |
Carrying value of loans sold |  | 5,500 | 30,800 | 95,100 |
Realized investment gains (losses) |  |  | 19,100 | (600) |
Provision for (recovery of) loan losses |  | 36,567 | (1,714) | 5,489 |
Repayments of and principal collections on loans receivable and other lending investments, net |  | 273,454 | 512,528 | $ 613,615 |
Loans Receivable One |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Total gross carrying value of loans | $ 146,700 |  |  |  |
Senior mortgages |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Total gross carrying value of loans |  | 975,915 | 737,535 |  |
Corporate/Partnership loans |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Total gross carrying value of loans |  | 643,270 | 497,796 |  |
Subordinate mortgages |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Total gross carrying value of loans |  | $ 28,676 | $ 53,331 |  |
Loan 1 |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Total gross carrying value of loans | 196,600 |  |  |  |
Total loans receivable, net | 24,000 |  |  |  |
Provision for (recovery of) loan losses | $ 25,900 |  |  |  |

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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(a)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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