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Accounts receivable, unbilled revenue (contract assets) and unearned revenue or payments on account (contract liabilities) (Tables) | 6 Months Ended
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Jun. 30, 2021
Revenue from Contract with Customer [Abstract] |
Schedule of Contracts with Customers, Asset and Liabilities | Accounts receivables and unbilled revenue are as follows:
| June 30, 2021 |  | December 31, 2020
| (in thousands)
Contract assets: |  |  |
Billed services (accounts receivable) | $ | 684,355 |  |  | $ | 722,420 |
Unbilled services (unbilled revenue) | 415,390 |  |  | 428,684 |
Accounts receivable and unbilled revenue | 1,099,745 |  |  | 1,151,104 |
Allowance for credit losses | (7,108) |  |  | (7,149) |
Accounts receivable and unbilled revenue, net | $ | 1,092,637 |  |  | $ | 1,143,955 |
Unbilled services and unearned revenue or payments on account (contract assets and liabilities) were as follows:
(in thousands, except percentages) | June 30, 2021 |  | December 31, 2020 |  | $ Change |  | % Change
Unbilled services (unbilled revenue) | $ | 415,390 |  |  | $ | 428,684 |  |  | $ | (13,294) |  |  | (3.1) | %
Unearned revenue (payments on account) | (675,234) |  |  | (660,883) |  |  | (14,351) |  |  | 2.2 | %
Net balance | $ | (259,844) |  |  | $ | (232,199) |  |  | $ | (27,645) |  |  | 11.9 | %

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045 + Details
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- References No definition available. + Details
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