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Investments (Real Estate Investments) - Additional Information (Detail) - USD ($) $ in Thousands |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Dec. 31, 2014 | Jun. 30, 2015 | Mar. 31, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Schedule of Investments [Line Items] |  |  |  |  |  |
Maximum exposure loss relating to VIE | $ 4,477 | $ 4,746 |  |  | $ 4,746 |
Real Estate Development [Member] | Riverview, Florida [Member] |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |
Deposit paid to secure right to purchase |  | 70 |  |  | 70 |
ADC Arrangement [Member] |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |
Loan amount | 9,785 |  | $ 10,200 |  |  |
Maximum exposure loss relating to VIE | $ 2,888 | 6,285 |  |  | 6,285 |
Real Estate Investments [Member] |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |
Depreciation and amortization expenses under real estate investments |  | $ 90 |  | $ 100 | $ 193 | $ 198

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- Definition Amount of loan issued to businesses to acquire, develop and construct commercial real estate. + References No definition available. + Details
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- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- Definition A deposit made by a purchaser of real estate to evidence good faith. It is customary for a buyer to give the seller earnest money at the time a sales contract is signed. The earnest money generally is credited to the down payment at closing, which is applied at closing as a component of payment against the purchase price. + References No definition available. + Details
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- Definition The reporting entity's maximum amount of exposure to loss as a result of its involvement with the Variable Interest Entity (VIE). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph b -URI http://asc.fasb.org/extlink&oid=52262685&loc=d3e5728-111685 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=52262685&loc=d3e5747-111685 + Details
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