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Business Combinations - Additional Information (Detail) $ in Millions |  | 3 Months Ended
--- | --- | ---
Mar. 01, 2021 USD ($) | Mar. 31, 2021 USD ($) Segment | Mar. 31, 2020 USD ($)
Business Acquisition [Line Items] |  |  |
Number of operating segment | Segment |  | 1 |
Number of reportable segment | Segment |  | 1 |
Total revenue |  | $ 234.5 | $ 222.7
Ascender HCM Pty Ltd. [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Percentage of voting interest | 100.00% |  |
Purchase price | $ 359.6 |  |
Total revenue |  | $ 6.7 |
Ascender HCM Pty Ltd. [Member] | Other Expense, Net [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Gain on forward foreign currency contract | $ 4.2 |  |

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