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Fair Value Measurements - Fair Value, by Balance Sheet Grouping (Details) - Fair Value, Inputs, Level 3 [Member] - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Carrying Amount [Member] |  |
Assets |  |
Loans Receivable, Carrying Amount | $ 94,210 | $ 95,871
Liabilities |  |
Debt, Carrying Amount | 1,860,598 | 2,182,367
Fair Value [Member] |  |
Assets |  |
Loans Receivable, Fair Value | 94,911 | 103,014
Liabilities |  |
Debt, Fair Value | 1,814,824 | 2,164,571
LCIF [Member] | Carrying Amount [Member] |  |
Liabilities |  |
Debt, Carrying Amount | 315,616 | 632,705
LCIF [Member] | Fair Value [Member] |  |
Liabilities |  |
Debt, Fair Value | $ 314,509 | $ 650,785

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- Definition Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13433-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13476-108611 + Details
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- Definition Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Glossary Loan -URI http://asc.fasb.org/extlink&oid=6517073 + Details
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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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