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REVENUES (Tables) | 12 Months Ended
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Dec. 31, 2019
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | The following table presents the Company’s operating revenues disaggregated by geographical region in which services are provided:
| 2019 |  | 2018 |  | 2017
Operating revenues: |  |  |  |  |
United States | $ | 146,952 |  |  | $ | 153,394 |  |  | $ | 150,583 |
Foreign | 63,083 |  |  | 56,800 |  |  | 64,344 |
Total operating revenues | $ | 210,035 |  |  | $ | 210,194 |  |  | $ | 214,927 |
The following table presents the Company’s revenues earned by service line:
| 2019 |  | 2018 |  | 2017
Revenues: |  |  |  |  |
Oil and gas flight services: |  |  |  |  |
U.S. | $ | 139,312 |  |  | $ | 143,654 |  |  | $ | 134,010 |
International | 56,510 |  |  | 56,800 |  |  | 64,344 |
Total oil and gas | 195,822 |  |  | 200,454 |  |  | 198,354 |
Emergency response services | 14,213 |  |  | 9,740 |  |  | 11,502 |
Flightseeing | — |  |  | — |  |  | 5,071 |
Total operating revenues | $ | 210,035 |  |  | $ | 210,194 |  |  | $ | 214,927 |
Dry-leasing revenues: |  |  |  |  |
U.S. | 2,562 |  |  | 3,873 |  |  | 1,604 |
International | 13,462 |  |  | 7,609 |  |  | 14,790 |
Total revenues | $ | 226,059 |  |  | $ | 221,676 |  |  | $ | 231,321 |

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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=118956577&loc=SL49130545-203045 + Details
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