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Revenue Recognition (Tables) | 3 Months Ended
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Mar. 31, 2023
Revenue From Contract With Customer [Abstract] |
Disaggregation of Revenue |
|  | Three Months Ended March 31, |
|  | 2023 |  |  | 2022 |
|  | Dollars |  |  | Percent |  |  | Dollars |  |  | Percent |
Client Markets: |  |  |  |  |  |  |  |  |  |  |  |
Energy, environment, infrastructure, and disaster recovery |  | $ | 187,396 |  |  |  | 39 | % |  | $ | 169,028 |  |  |  | 41 | %
Health and social programs |  |  | 203,698 |  |  |  | 42 | % |  |  | 156,057 |  |  |  | 38 | %
Security and other civilian & commercial |  |  | 92,188 |  |  |  | 19 | % |  |  | 88,383 |  |  |  | 21 | %
Total |  | $ | 483,282 |  |  |  | 100 | % |  | $ | 413,468 |  |  |  | 100 | %
|  | Three Months Ended March 31, |
|  | 2023 |  |  | 2022 |
|  | Dollars |  |  | Percent |  |  | Dollars |  |  | Percent |
Client Type: |  |  |  |  |  |  |  |  |  |  |  |
U.S. federal government |  | $ | 267,742 |  |  |  | 55 | % |  | $ | 219,044 |  |  |  | 53 | %
U.S. state and local government |  |  | 74,933 |  |  |  | 16 | % |  |  | 66,117 |  |  |  | 16 | %
International government |  |  | 20,669 |  |  |  | 4 | % |  |  | 27,377 |  |  |  | 7 | %
Total Government |  |  | 363,344 |  |  |  | 75 | % |  |  | 312,538 |  |  |  | 76 | %
Commercial |  |  | 119,938 |  |  |  | 25 | % |  |  | 100,930 |  |  |  | 24 | %
Total |  | $ | 483,282 |  |  |  | 100 | % |  | $ | 413,468 |  |  |  | 100 | %
|  | Three Months Ended March 31, |
|  | 2023 |  |  | 2022 |
|  | Dollars |  |  | Percent |  |  | Dollars |  |  | Percent |
Contract Mix: |  |  |  |  |  |  |  |  |  |  |  |
Time-and-materials |  | $ | 200,990 |  |  |  | 42 | % |  | $ | 164,968 |  |  |  | 40 | %
Fixed price |  |  | 219,016 |  |  |  | 45 | % |  |  | 184,012 |  |  |  | 44 | %
Cost-based |  |  | 63,276 |  |  |  | 13 | % |  |  | 64,488 |  |  |  | 16 | %
Total |  | $ | 483,282 |  |  |  | 100 | % |  | $ | 413,468 |  |  |  | 100 | %
Schedule of Contract Balances and Changes in Contract Balances | Contract Balances: Contract assets consist primarily of unbilled amounts resulting from long-term contracts when revenue recognized exceeds the amount billed often due to billing schedule timing. Contract liabilities result from advance payments received on a contract or from billings in excess of revenue recognized on long-term contracts due to billing schedule timing. The following table summarizes the contract balances as of March 31, 2023 and December 31, 2022:
|  | March 31, 2023 |  |  | December 31, 2022 |
Contract assets |  | $ | 188,093 |  |  | $ | 169,088 |
Contract liabilities |  |  | (25,771 | ) |  |  | (25,773 | )
Net contract assets (liabilities) |  | $ | 162,322 |  |  | $ | 143,315 |

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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 https://asc.fasb.org/extlink&oid=126920106&loc=SL49130551-203045 + Details
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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130545-203045 + Details
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