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Commitments and Contingencies - Additional Information (Detail) - Isolated Service Incident [Member] - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2019 | Sep. 26, 2019
Commitments And Contingencies [Line Items] |  |  |  |
Duplicate payments for payroll customers |  |  |  | $ 18.8
Loss on unrecovered duplicate payments |  | $ 11.2 |  |
Recovery efforts resulting in collection | $ 0.3 |  |  |
Selling, General and Administrative Expense [Member] |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Loss on unrecovered duplicate payments |  |  | $ 11.2 |

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- Definition The amount of loss pertaining to the specified contingency that was charged against earnings in the period, including the effects of revisions in previously reported estimates. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349 + Details
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- Definition Amount of cash inflow from the collection of receivables related to a loss contingency. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=118943654&loc=d3e12053-110248 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 17 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3367-108585 + Details
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