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Financial Instruments (Available-for-sale Debt Securities) - Additional Information (Detail) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2019 | Dec. 31, 2018
Schedule Of Available For Sale Securities [Line Items] |  |
Available-for-sale securities, debt securities, par value | $ 59,100 | $ 55,700
Available-for-sale debt securities, maturity start date | 2019-10 |
Available-for-sale debt securities, maturity end date | 2024-02 |
Funds held for clients | $ 123,448 | 161,289
Certified Deposits and Other Depository Assets [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Funds held for clients | $ 2,300 | $ 2,300

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- Definition Available-for-sale securities, debt securities, par value. + References No definition available. + Details
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- Definition Debt securities, available-for-sale, maturity end date. + References No definition available. + Details
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- Definition Debt securities, available-for-sale, maturity start date. + References No definition available. + Details
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- Definition Carrying amount as of the balance sheet date of the funds held on behalf of others and that are expected to be liquidated within one year or the normal operating cycle, if longer. This does not include funds held under reinsurance agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.8) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + 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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