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Investments (Limited Partnership Investments) - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2015 | Jun. 30, 2015 | Dec. 31, 2014
Schedule of Investments [Line Items] |  |  |
Recognized investment loss |  | $ (462) |
Maximum exposure loss relating to VIE | $ 4,746 | 4,746 | $ 4,477
Limited Partnership [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Recognized investment loss | 197 | 462 |
Company's contributed capital to the partnership | 23,269 | 23,269 | 2,640
Maximum exposure loss relating to VIE | $ 22,716 | $ 22,716 | $ 2,550

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- Definition Represents the amount of cash contribution to acquire limited partnership interest as of the reporting date. + References No definition available. + Details
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Balance Type: | debit
Period Type: | instant

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- Definition This item represents the entity's proportionate share for the period of the net income (loss) of its limited partnership interests to which the equity method of accounting is applied and the holding of these interests is for investment purposes. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + 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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- Details
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Balance Type: |
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