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Revenue and Contract Balances (Tables) | 6 Months Ended
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Mar. 29, 2020
Revenue from Contract with Customer [Abstract] |
Reconciliation of Disaggregation of Revenue to Reportable Segments | The following tables provide information about disaggregated revenue:
| Three Months Ended |  |  |  | Six Months Ended |  |
| March 29, 2020 |  | March 31, 2019 |  | March 29, 2020 |  | March 31, 2019
| (in thousands) |  |  |  |  |  |
Client Sector: |  |  |  |  |  |  |
U.S. state and local government | $ | 102,260 |  |  | $ | 129,868 |  |  | $ | 224,616 |  |  | $ | 253,147 |
U.S. federal government (1) | 243,261 |  |  | 216,498 |  |  | 488,564 |  |  | 441,256 |
U.S. commercial | 162,198 |  |  | 165,970 |  |  | 345,169 |  |  | 338,758 |
International (2) | 226,414 |  |  | 210,285 |  |  | 473,407 |  |  | 406,891 |
Total | $ | 734,133 |  |  | $ | 722,621 |  |  | $ | 1,531,756 |  |  | $ | 1,440,052 |
Contract Type: |  |  |  |  |  |  |
Fixed-price | $ | 255,613 |  |  | $ | 247,831 |  |  | $ | 526,668 |  |  | $ | 488,764 |
Time-and-materials | 350,618 |  |  | 345,626 |  |  | 738,776 |  |  | 682,163 |
Cost-plus | 127,902 |  |  | 129,164 |  |  | 266,312 |  |  | 269,125 |
Total | $ | 734,133 |  |  | $ | 722,621 |  |  | $ | 1,531,756 |  |  | $ | 1,440,052 |
(1) Includes revenue generated under U.S. federal government contracts performed outside the United States. (2) Includes revenue generated from foreign operations, primarily in Canada, Australia and the United Kingdom, and revenue generated from non-U.S. clients.
Summary of Net Contract Liabilities/Assets | There were no substantial non-current contract assets or liabilities for the periods presented. Net contract assets/liabilities consisted of the following:
| Balance at |  |
| March 29, 2020 |  | September 29, 2019
| (in thousands) |  |
Contract assets (1) | $ | 109,166 |  |  | $ | 114,324 |
Contract liabilities | (189,741) |  |  | (165,611) |
Net contract liabilities | $ | (80,575) |  |  | $ | (51,287) |
(1) Includes $25.5 million and $26.5 million of contract retentions as of March 29, 2020 and September 29, 2019, respectively.
Net Accounts Receivable Components | Net accounts receivable consisted of the following:
| Balance at |  |
| March 29, 2020 |  | September 29, 2019
| (in thousands) |  |
Billed | $ | 438,029 |  |  | $ | 522,256 |
Unbilled | 279,440 |  |  | 300,035 |
Total accounts receivable | 717,469 |  |  | 822,291 |
Allowance for doubtful accounts | (56,890) |  |  | (53,571) |
Total accounts receivable, net | $ | 660,579 |  |  | $ | 768,720 |
Remaining Performance Obligation, Expected Timing | We expect to satisfy our RUPOs as of March 29, 2020 over the following periods:
| Amount
| (in thousands)
Within 12 months | $ | 1,716,973 |
Beyond | 1,255,124 |
Total | $ | 2,972,097 |

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