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Loans Receivable and Other Lending Investments, net (Securities) (Details) - USD ($) $ in Thousands | Sep. 30, 2017 | Dec. 31, 2016
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Investments, Debt and Equity Securities [Abstract] |  |
Face Value | $ 86,237 | $ 79,694
Amortized Cost Basis | 86,274 | 79,490
Net Unrealized Gain (Loss) | 2,033 | 3,179
Estimated Fair Value | 88,307 | 82,669
Net Carrying Value | 87,100 | 79,916
Municipal debt securities |  |
Available-for-Sale Securities |  |
Face Value | 21,230 | 21,240
Amortized Cost Basis | 21,230 | 21,240
Net Unrealized Gain (Loss) | 875 | 426
Estimated Fair Value | 22,105 | 21,666
Net Carrying Value | 22,105 | 21,666
Debt securities |  |
Held-to-Maturity Securities |  |
Face Value | 65,007 | 58,454
Amortized Cost Basis | 65,044 | 58,250
Net Unrealized Gain (Loss) | 1,158 | 2,753
Estimated Fair Value | 66,202 | 61,003
Net Carrying Value | $ 65,044 | $ 58,250

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- Definition This item represents the cost of debt securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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