v3.8.0.1

Supplementary Data - Selected Quarterly Financial Data (Detail) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Quarterly Financial Information Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net revenues | $ 28,417 | $ 25,608 | $ 24,969 | $ 26,355 | $ 26,505 | $ 23,749 | $ 22,433 | $ 17,615 | $ 25,492 | $ 33,941 | $ 38,605 | $ 33,298 | $ 105,349 | $ 90,302 | $ 131,336
Net operating expenses | (29,365) | (29,543) | (34,689) | (31,460) | (33,564) | (32,201) | (34,534) | (34,869) | (38,671) | (272,462) | (46,970) | (45,686) | (125,057) | (135,168) | (403,789)
Interest expense, net | (5,370) | (5,304) | (4,916) | (5,463) | (7,086) | (7,067) | (6,808) | (6,298) | (6,436) | (6,465) | (6,243) | (5,922) | (21,053) | (27,259) | (25,066)
Gain on debt extinguishment |  |  |  | 5,053 |  |  |  |  | 9,080 | 1,483 |  |  | 5,053 |  | 10,563
Write-off of debt issuance costs |  |  |  |  |  |  | (563) |  |  |  |  |  |  | (563) |
Commodity derivative (loss) gain | (1,377) | (3,560) | 1,231 | 3,444 | (2,901) | 1,541 | (6,667) | 2,543 | 4,267 | 13,051 | (4,623) | 6,580 | (262) | (5,484) | 19,275
Other income (expense) |  | 29 |  | 3 |  | (10) | 1,417 | 104 | 225 | (91) | 12 | 26 | 32 | 1,511 | 172
LOSS BEFORE INCOME TAX PROVISON (BENEFIT) | (7,695) | (12,770) | (13,405) | (2,068) | (17,046) | (13,988) | (24,722) | (20,905) | (6,043) | (230,543) | (19,219) | (11,704) | (35,938) | (76,661) | (267,509)
Income tax (benefit) provision | (53,512) | (4,258) | (4,509) | 138,700 | (3,571) | (4,915) | (8,687) | (7,245) | (284) | (81,756) | (7,369) | (3,996) | 76,421 | (24,418) | (93,405)
NET LOSS | $ 45,817 | $ (8,512) | $ (8,896) | $ (140,768) | $ (13,475) | $ (9,073) | $ (16,035) | $ (13,660) | $ (5,759) | $ (148,787) | $ (11,850) | $ (7,708) | $ (112,359) | $ (52,243) | $ (174,104)
Basic net earnings (loss) applicable to common stockholders per common share | $ 0.51 | $ (0.10) | $ (0.10) | $ (2.00) | $ (0.32) | $ (0.22) | $ (0.39) | $ (0.33) | $ (0.14) | $ (3.67) | $ (0.29) | $ (0.19) | $ (1.35) | $ (1.26) | $ (4.30)
Diluted net earnings (loss) applicable to common stockholders per common share | $ 0.51 | $ (0.10) | $ (0.10) | $ (2.00) | $ (0.32) | $ (0.22) | $ (0.39) | $ (0.33) | $ (0.14) | $ (3.67) | $ (0.29) | $ (0.19) | $ (1.35) | $ (1.26) | $ (4.30)

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- Definition The difference between the book value and the sale price of options, swaps, futures, forward contracts, and other derivative instruments. This element refers to the gain (loss) included in earnings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13(h)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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