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Contracts with Customers - Summary of Changes in Deferred Revenue Balances (Detail) $ in Millions | 3 Months Ended
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Mar. 31, 2023 USD ($)
Deferred Revenue Arrangement [Line Items] |
Deferred revenue beginning balance | $ 609.3
Incremental deferred revenue | 299.1
Revenue recognized during the three-month period ended March 31, 2023 included in deferred revenue at December 31, 2022 | (237.2)
Net change in collected billings/deposits received from customers | 12.1
Impact of change in foreign exchange rates | 2.1
Deferred revenue recognized from business acquisitions | 2.8
Deferred revenue ending balance | 688.2
Brokerage [Member] |
Deferred Revenue Arrangement [Line Items] |
Deferred revenue beginning balance | 434.0
Incremental deferred revenue | 273.2
Revenue recognized during the three-month period ended March 31, 2023 included in deferred revenue at December 31, 2022 | (211.9)
Net change in collected billings/deposits received from customers | 15.3
Impact of change in foreign exchange rates | 2.6
Deferred revenue recognized from business acquisitions | 2.8
Deferred revenue ending balance | 516.0
Risk Management [Member] |
Deferred Revenue Arrangement [Line Items] |
Deferred revenue beginning balance | 175.3
Incremental deferred revenue | 25.9
Revenue recognized during the three-month period ended March 31, 2023 included in deferred revenue at December 31, 2022 | (25.3)
Net change in collected billings/deposits received from customers | (3.2)
Impact of change in foreign exchange rates | (0.5)
Deferred revenue ending balance | $ 172.2

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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=126919976&loc=SL49130531-203044 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130549-203045 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=126919976&loc=SL49130532-203044 + Details
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- Definition Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130549-203045 + Details
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