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Revenues (Tables) | 12 Months Ended
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Sep. 30, 2020
Revenues |
Schedule of disaggregation of revenue by reportable segment | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Year Ended September 30, 2020 | ​ | Aerospace | ​ |  | ​ | ​ |  | ​ | ​ |
(In thousands) |  | & Defense |  | USG |  | Test |  | Total
Customer type: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Commercial | ​ | $ | 169,484 | ​ | $ | 184,906 | ​ | $ | 158,420 | ​ | $ | 512,810
Government | ​ |  | 184,836 | ​ |  | 6,797 | ​ |  | 28,472 | ​ |  | 220,105
Total revenues | ​ | $ | 354,320 | ​ | $ | 191,703 | ​ | $ | 186,892 | ​ | $ | 732,915
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Geographic location: | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  |
United States | ​ | $ | 305,155 | ​ | $ | 134,601 | ​ | $ | 92,105 | ​ | $ | 531,861
International | ​ |  | 49,165 | ​ |  | 57,102 | ​ |  | 94,787 | ​ |  | 201,054
Total revenues | ​ | $ | 354,320 | ​ | $ | 191,703 | ​ | $ | 186,892 | ​ | $ | 732,915
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Revenue recognition method: | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  |
Point in time | ​ | $ | 160,402 | ​ | $ | 144,192 | ​ | $ | 33,482 | ​ | $ | 338,076
Over time | ​ |  | 193,918 | ​ |  | 47,511 | ​ |  | 153,410 | ​ |  | 394,839
Total revenues | ​ | $ | 354,320 | ​ | $ | 191,703 | ​ | $ | 186,892 | ​ | $ | 732,915

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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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