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v3.19.2

Securities - Additional Information (Detail) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2019 USD ($) security | Jun. 30, 2019 USD ($) security | Dec. 31, 2018 USD ($) security
Debt and Equity Securities, FV-NI [Line Items] |  |  |
Number of securities holdings | security | 0 | 0 | 0
Shareholders' equity percentage | 10.00% | 10.00% | 10.00%
Tax provision related to net realized gains | $ 0 | $ 31 |
Collateral Pledged |  |  |
Debt and Equity Securities, FV-NI [Line Items] |  |  |
Debt securities, trading, restricted | $ 261,059 | $ 261,059 | $ 290,717

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- Definition Amount of restricted investment in debt security measured at fair value with change in fair value recognized in net income (trading). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 1A -Subparagraph (b)(1)(i) -URI http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729 + Details
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