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Securities - Trading Securities (Detail) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
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Debt and Equity Securities, FV-NI [Line Items] |  |
Trading securities | $ 8,642 | $ 7,786
Corporate equity securities |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Trading securities | 6,947 | 5,828
Mutual funds |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Trading securities | 871 | 1,058
Certificates of deposit |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Trading securities | 179 | 268
Corporate notes and bonds |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Trading securities | 594 | 581
U.S. Gov’t sponsored entities |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Trading securities | $ 51 | $ 51

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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.4) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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