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Revenue (Tables) | 9 Months Ended
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Jun. 30, 2020
Revenue from Contract with Customer [Abstract] |
Summary of Contract Asset and Liabilities | Contract assets and liabilities as of June 30, 2020 and September 30, 2019 are summarized below (in thousands):
| June 30, 2020 |  | September 30, 2019
Contract assets | $ | 51,723 |  |  | $ | 55,374 |
Contract liabilities | (97,969 | ) |  | (71,464 | )
Net contract liability | $ | (46,246 | ) |  | $ | (16,090 | )
Disaggregation of Revenue | The following tables present our disaggregated revenue by geographic destination and market sector for the three and nine months ended June 30, 2020 and 2019 (in thousands):
| Three months ended June 30, |  | Nine months ended June 30,
| 2020 |  | 2019 |  | 2020 |  | 2019
United States | $ | 89,499 |  |  | $ | 99,745 |  |  | $ | 318,009 |  |  | $ | 292,049 |
Canada | 16,970 |  |  | 20,206 |  |  | 46,831 |  |  | 45,015 |
Europe, Middle East and Africa | 6,422 |  |  | 9,659 |  |  | 25,404 |  |  | 20,608 |
Asia/Pacific | 4,643 |  |  | 4,682 |  |  | 11,784 |  |  | 9,155 |
Mexico, Central and South America | 528 |  |  | 1,296 |  |  | 1,753 |  |  | 1,849 |
Total revenues by geographic destination | $ | 118,062 |  |  | $ | 135,588 |  |  | $ | 403,781 |  |  | $ | 368,676 |
| Three months ended June 30, |  | Nine months ended June 30,
| 2020 |  | 2019 |  | 2020 |  | 2019
Oil and gas | $ | 45,851 |  |  | $ | 62,356 |  |  | $ | 157,798 |  |  | $ | 167,954 |
Petrochemical | 29,293 |  |  | 21,086 |  |  | 107,057 |  |  | 63,387 |
Electric utility | 16,725 |  |  | 26,425 |  |  | 63,994 |  |  | 66,066 |
Traction power | 9,122 |  |  | 7,423 |  |  | 31,417 |  |  | 18,457 |
All others | 17,071 |  |  | 18,298 |  |  | 43,515 |  |  | 52,812 |
Total revenues by market sector | $ | 118,062 |  |  | $ | 135,588 |  |  | $ | 403,781 |  |  | $ | 368,676 |

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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=121604090&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 http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045 + Details
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