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Revenue from Contracts with Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue from contracts with customers | $ 757,000 | $ 750,300 | $ 680,400 | $ 629,400 | $ 476,100 | $ 475,500 | $ 443,000 | $ 411,900 | $ 2,817,111 | $ 1,806,473 | [1] | $ 1,300,464 | [1]
(Loss) gain on crude contracts |  |  |  |  |  |  |  |  | (856) | (41,975) | [1] | 9,566 | [1]
Gain on sale of assets and other income |  |  |  |  |  |  |  |  | 12,798 | 26,903 | [1] | 133,958 | [1]
Total revenues and other income |  |  |  |  |  |  |  |  | 2,829,053 | 1,791,401 | [1] | 1,443,988 | [1]
Net crude oil and condensate revenue |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue from contracts with customers |  |  |  |  |  |  |  |  | 2,515,164 | 1,498,270 |  | 1,051,251 |
Net natural gas liquids revenue |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue from contracts with customers |  |  |  |  |  |  |  |  | 69,584 | 88,312 |  | 56,148 |
Net natural gas revenue |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue from contracts with customers |  |  |  |  |  |  |  |  | 232,363 | 219,891 |  | 193,065 |
United States | Net crude oil and condensate revenue |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue from contracts with customers |  |  |  |  |  |  |  |  | 750,278 | 786,537 |  | 644,024 |
United States | Net natural gas liquids revenue |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue from contracts with customers |  |  |  |  |  |  |  |  | 30,615 | 61,810 |  | 43,804 |
United States | Net natural gas revenue |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue from contracts with customers |  |  |  |  |  |  |  |  | 27,668 | 36,070 |  | 27,460 |
United States Offshore | Net crude oil and condensate revenue |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue from contracts with customers |  |  |  |  |  |  |  |  | 1,477,816 | 417,527 |  | 208,984 |
United States Offshore | Net natural gas liquids revenue |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue from contracts with customers |  |  |  |  |  |  |  |  | 26,968 | 11,832 |  | 6,894 |
United States Offshore | Net natural gas revenue |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue from contracts with customers |  |  |  |  |  |  |  |  | 46,259 | 17,559 |  | 10,480 |
Canada | Net crude oil and condensate revenue |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue from contracts with customers |  |  |  |  |  |  |  |  | 116,174 | 111,836 |  | 51,013 |
Canada | Net natural gas liquids revenue |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue from contracts with customers |  |  |  |  |  |  |  |  | 12,001 | 14,670 |  | 5,450 |
Canada | Net natural gas revenue |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue from contracts with customers |  |  |  |  |  |  |  |  | 158,436 | 166,262 |  | 155,125 |
Canada Offshore | Net crude oil and condensate revenue |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue from contracts with customers |  |  |  |  |  |  |  |  | 159,254 | 176,291 |  | 147,230 |
Other | Net crude oil and condensate revenue |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue from contracts with customers |  |  |  |  |  |  |  |  | $ 11,642 | $ 6,079 |  | $ 0 |
[1] | 1 Reclassified to conform with current presentation (see Notes C and E). 2017 revenue is presented net of $58.9 million of transportation, gathering and processing costs as historically shown prior to the adoption of ASC 606 on January 1, 2018. See Notes to Consolidated Financial Statements, page 58.

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