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Financial Instruments (Available-for-sale Debt Securities) - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2020 | Dec. 31, 2019
Schedule Of Available For Sale Securities [Line Items] |  |
Corporate and municipal bonds | $ 45,300 | $ 58,900
Maturity dates of bonds, start date | 2020-04 |
Maturity dates of bonds, end date | 2024-11 |
Unrealized losses on securities | $ 400 |
Funds held for clients | 141,984 | 179,502
Certificates of Deposits and Other Depository Assets [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Funds held for clients | $ 2,000 | $ 2,500

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- Definition Amount of unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References No definition available. + Details
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- Details
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