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Contracts with Customers | 9 Months Ended
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Sep. 30, 2025
Revenue from Contract with Customer [Abstract] |
Contracts with Customers | Contracts with Customers Contract Assets and Liabilities/Contract Balances Information about unbilled receivables, contract assets and contract liabilities from contracts with customers is as follows (in millions):
| September 30, 2025 |  | December 31, 2024
Unbilled receivables | $ | 2,095.4 |  |  | $ | 1,273.9 |
Deferred contract costs | 205.4 |  |  | 206.8 |
Deferred revenue | 891.1 |  |  | 604.3 |
The unbilled receivables, which are included in accounts receivable in our consolidated balance sheet, primarily relate to our rights to consideration for work completed but not billed at the reporting date. These are transferred to the receivables when the client is billed. The deferred contract costs represent the costs we incur to fulfill a new or renewal contract with our clients prior to the effective date of the contract. These costs are expensed on the contract effective date. The deferred revenue in the consolidated balance sheet includes amounts that represent the remaining performance obligations under our contracts and amounts collected related to advanced billings and deposits received from customers that may or may not ultimately be recognized as revenues in the future. Deposits received from customers could be returned to the customers based on lesser actual transactional volume than originally billed volume. Significant changes in the deferred revenue balances, which include foreign currency translation adjustments, during the period are as follows (in millions):
| Brokerage |  | Risk Management |  | Total
Deferred revenue at December 31, 2024 | $ | 430.9 |  |  | $ | 173.4 |  |  | $ | 604.3 |
Incremental deferred revenue | 351.9 |  |  | 82.9 |  |  | 434.8 |
Revenue recognized during the nine-month period ended September 30, 2025 included in deferred revenue at December 31, 2024 | (328.8) |  |  | (74.3) |  |  | (403.1) |
Net change in collected billings/deposits received from customers | 9.1 |  |  | (1.7) |  |  | 7.4 |
Impact of change in foreign exchange rates | 26.4 |  |  | 0.9 |  |  | 27.3 |
Deferred revenue recognized from business acquisitions | 220.4 |  |  | — |  |  | 220.4 |
Deferred revenue at September 30, 2025 | $ | 709.9 |  |  | $ | 181.2 |  |  | $ | 891.1 |
Revenue recognized during the nine-month period ended September 30, 2025 in the table above included revenue from 2024 acquisitions that would not be reflected in prior periods. Remaining Performance Obligations Remaining performance obligations represent the portion of the contract price for which work has not been performed. As of September 30, 2025, the aggregate amount of the contract price allocated to remaining performance obligations was $891.1 million. The estimated revenue expected to be recognized in the future related to performance obligations that are unsatisfied (or partially unsatisfied) at the end of the reporting period is as follows (in millions):
| Brokerage |  | Risk Management |  | Total
2025 (remaining three months) | $ | 461.5 |  |  | $ | 70.9 |  |  | $ | 532.4 |
2026 | 241.6 |  |  | 51.3 |  |  | 292.9 |
2027 | 3.6 |  |  | 26.8 |  |  | 30.4 |
2028 | 1.6 |  |  | 12.9 |  |  | 14.5 |
2029 | 0.8 |  |  | 6.5 |  |  | 7.3 |
Thereafter | 0.8 |  |  | 12.8 |  |  | 13.6 |
Total | $ | 709.9 |  |  | $ | 181.2 |  |  | $ | 891.1 |
Deferred Contract Costs We capitalize costs incurred to fulfill contracts as deferred contract costs which are included in other current assets in our consolidated balance sheet. Deferred contract costs were $205.4 million and $206.8 million as of September 30, 2025 and December 31, 2024, respectively. Capitalized fulfillment costs are amortized to expense on the contract effective date. The amount of amortization of the deferred contract costs was $620.0 million and $524.4 million for the nine-month periods ended September 30, 2025 and 2024, respectively. We have applied the practical expedient to recognize the incremental costs of obtaining contracts as an expense when incurred if the amortization period of the assets that we otherwise would have recognized is one year or less for our brokerage segment. These costs are included in compensation and operating expenses in our consolidated statement of earnings.

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- Definition The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-9 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-10 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-15 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-12 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-12 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-12 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-12 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-12 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-13 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Topic 606 -Publisher FASB -URI https://asc.fasb.org/606/tableOfContent + Details
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