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Revenue - Summary of Disaggregation of Revenue (Detail) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2020 | Mar. 31, 2019
Disaggregation Of Revenue [Line Items] |  |
Total revenue | $ 222.7 | $ 203.7
Cloud Revenue [Member] |  |
Disaggregation Of Revenue [Line Items] |  |
Total revenue | 190.9 | 154.6
Cloud Dayforce Recurring Services [Member] |  |
Disaggregation Of Revenue [Line Items] |  |
Total revenue | 128.1 | 102.9
Cloud Dayforce Professional Services and Other [Member] |  |
Disaggregation Of Revenue [Line Items] |  |
Total revenue | 40.7 | 29.9
Cloud Dayforce Revenue [Member] |  |
Disaggregation Of Revenue [Line Items] |  |
Total revenue | 168.8 | 132.8
Bureau Revenue [Member] |  |
Disaggregation Of Revenue [Line Items] |  |
Total revenue | 31.8 | 49.1
Cloud Powerpay Recurring Services [Member] |  |
Disaggregation Of Revenue [Line Items] |  |
Total revenue | 21.8 | 21.5
Cloud Powerpay Professional Services and Other [Member] |  |
Disaggregation Of Revenue [Line Items] |  |
Total revenue | 0.3 | 0.3
Cloud Powerpay Revenue [Member] |  |
Disaggregation Of Revenue [Line Items] |  |
Total revenue | 22.1 | 21.8
Bureau Recurring Services Revenue [Member] |  |
Disaggregation Of Revenue [Line Items] |  |
Total revenue | 31.6 | 48.4
Bureau Professional Services and Other Revenue [Member] |  |
Disaggregation Of Revenue [Line Items] |  |
Total revenue | $ 0.2 | $ 0.7

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
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