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Business Segment Information - Summarized Financial Information of Segments (Detail) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Segment Reporting Information [Line Items]                      
Total revenues $ 599,755 $ 674,629 $ 573,751 $ 473,812 $ 434,875 $ 320,283 $ 260,809 $ 277,752 $ 2,321,947 $ 1,293,719 $ 704,665
Operating income (loss) 69,656 $ 179,045 $ (242,674) $ 112,985 86,103 $ 32,394 $ 5,379 $ 20,092 119,012 143,968 (130,833)
Other income (expense)                 (144,355) (219,826) (240,721)
Income (loss) before income taxes including non-controlling interests                 (25,343) (75,858) (371,554)
Total assets 7,626,142       6,622,929       7,626,142 6,622,929 6,178,632
Property, plant and equipment, net 7,027,109       6,173,486       7,027,109 6,173,486 5,919,567
Capital expenditures                 2,203,453 836,204 1,181,527
Depreciation, depletion and amortization                 636,296 530,802 476,331
General and administrative expenses                 121,346 91,797 89,342
Equity-based compensation                 29,273 26,534 24,103
Impairment                 384,228 6,887 4,684
Exploration and Production                      
Segment Reporting Information [Line Items]                      
Total revenues                 2,136,735 1,168,176 635,505
Midstream Services                      
Segment Reporting Information [Line Items]                      
Total revenues                 286,642 185,799 120,853
Well services                      
Segment Reporting Information [Line Items]                      
Total revenues                 205,619 148,136 93,349
Operating segments | Exploration and Production                      
Segment Reporting Information [Line Items]                      
Total revenues                 2,136,735 1,168,176 635,505
Operating income (loss)                 (25,027) 40,694 (196,179)
Other income (expense)                 (142,265) (219,823) (240,290)
Income (loss) before income taxes including non-controlling interests                 (167,292) (179,129) (436,469)
Total assets 6,838,987       6,058,054       6,838,987 6,058,054 5,868,747
Property, plant and equipment, net 6,311,566       5,663,323       6,311,566 5,663,323 5,620,558
Capital expenditures                 1,948,076 602,734 1,017,411
Depreciation, depletion and amortization                 618,402 519,853 467,894
General and administrative expenses                 102,482 77,560 78,995
Equity-based compensation                 27,910 25,436 23,346
Impairment                 384,228 6,887 2,253
Operating segments | Midstream Services                      
Segment Reporting Information [Line Items]                      
Total revenues                 124,137 72,752 35,406
Operating income (loss)                 143,126 102,377 68,868
Other income (expense)                 (2,125) (37) (474)
Income (loss) before income taxes including non-controlling interests                 141,001 102,340 68,394
Total assets 920,619       663,614       920,619 663,614 431,095
Property, plant and equipment, net 893,285       649,923       893,285 649,923 424,197
Capital expenditures                 277,626 235,090 170,386
Depreciation, depletion and amortization                 29,282 15,999 8,525
General and administrative expenses                 24,700 19,583 12,112
Equity-based compensation                 1,547 1,461 911
Impairment                 0 0 2,431
Operating segments | Well services                      
Segment Reporting Information [Line Items]                      
Total revenues                 61,075 52,791 33,754
Operating income (loss)                 30,988 15,057 3,428
Other income (expense)                 35 34 43
Income (loss) before income taxes including non-controlling interests                 31,023 15,091 3,471
Total assets 48,150       52,800       48,150 52,800 51,167
Property, plant and equipment, net 38,871       46,779       38,871 46,779 47,189
Capital expenditures                 7,831 12,537 680
Depreciation, depletion and amortization                 15,698 12,939 14,892
General and administrative expenses                 23,282 24,359 24,427
Equity-based compensation                 1,588 1,264 1,515
Impairment                 0 0 0
Inter-segment | Exploration and Production                      
Segment Reporting Information [Line Items]                      
Total revenues                 0 0 0
Inter-segment | Midstream Services                      
Segment Reporting Information [Line Items]                      
Total revenues                 162,505 113,047 85,447
Inter-segment | Well services                      
Segment Reporting Information [Line Items]                      
Total revenues                 144,544 95,345 59,595
Eliminations                      
Segment Reporting Information [Line Items]                      
Total revenues                 (307,049) (208,392) (145,042)
Operating income (loss)                 (30,075) (14,160) (6,950)
Other income (expense)                 0 0 0
Income (loss) before income taxes including non-controlling interests                 (30,075) (14,160) (6,950)
Total assets (181,614)       (151,539)       (181,614) (151,539) (172,377)
Property, plant and equipment, net $ (216,613)       $ (186,539)       (216,613) (186,539) (172,377)
Capital expenditures                 (30,080) (14,157) (6,950)
Depreciation, depletion and amortization                 (27,086) (17,989) (14,980)
General and administrative expenses                 (29,118) (29,705) (26,192)
Equity-based compensation                 (1,772) (1,627) (1,669)
Impairment                 $ 0 $ 0 $ 0