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Condensed Consolidating Financial Information - Schedule of Condensed Consolidating Statement of Operations (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014
Revenues |  |  |  |
Total revenues | $ 197,235 | $ 368,659 | $ 607,668 | $ 1,090,556
Operating expenses |  |  |  |
General and administrative expenses | (22,358) | (23,915) | (67,190) | (68,186)
Other operating expenses |  | (210,684) | (601,648) | (579,718)
Total operating expenses | (217,333) | (234,599) | (668,838) | (647,904)
Gain on sale of properties | 172 | 43 | 172 | 187,076
Operating income (loss) | (19,926) | 134,103 | (60,998) | 629,728
Other income (expense) |  |  |  |
Interest expense, net of capitalized interest | (36,513) | (39,420) | (112,702) | (118,568)
Other income (expense) | 103,886 | 103,388 | 111,655 | 20,503
Income (loss) before income taxes | 47,447 | 198,071 | (62,045) | 531,663
Income tax benefit (expense) | (20,392) | (76,484) | 17,829 | (201,290)
Net income (loss) | 27,055 | 121,587 | (44,216) | 330,373
Parent/Issuer [Member] |  |  |  |
Operating expenses |  |  |  |
General and administrative expenses |  | (6,373) | (20,847) | (17,790)
Total operating expenses | (5,903) |  |  |
Operating income (loss) | (5,903) | (6,373) | (20,847) | (17,790)
Other income (expense) |  |  |  |
Equity in earnings in subsidiaries | 49,899 | 148,357 | 28,269 | 410,775
Interest expense, net of capitalized interest | (34,020) | (36,724) | (103,435) | (110,853)
Other income (expense) | 1 |  | 5 | 3
Income (loss) before income taxes | 9,977 | 105,260 | (96,008) | 282,135
Income tax benefit (expense) | 17,078 | 16,327 | 51,792 | 48,238
Net income (loss) | 27,055 | 121,587 | (44,216) | 330,373
Combined Guarantor Subsidiaries [Member] |  |  |  |
Revenues |  |  |  |
Total revenues | 197,235 | 368,659 | 607,668 | 1,090,556
Operating expenses |  |  |  |
General and administrative expenses |  | (17,542) | (46,343) | (50,396)
Other operating expenses |  | (210,684) | (601,648) | (579,718)
Total operating expenses | (211,430) |  |  |
Gain on sale of properties | 172 | 43 | 172 | 187,076
Operating income (loss) | (14,023) | 140,476 | (40,151) | 647,518
Other income (expense) |  |  |  |
Interest expense, net of capitalized interest | (2,493) | (2,696) | (9,267) | (7,715)
Other income (expense) | 103,885 | 103,388 | 111,650 | 20,500
Income (loss) before income taxes | 87,369 | 241,168 | 62,232 | 660,303
Income tax benefit (expense) | (37,470) | (92,811) | (33,963) | (249,528)
Net income (loss) | 49,899 | 148,357 | 28,269 | 410,775
Intercompany Eliminations [Member] |  |  |  |
Other income (expense) |  |  |  |
Equity in earnings in subsidiaries | (49,899) | (148,357) | (28,269) | (410,775)
Income (loss) before income taxes | (49,899) | (148,357) | (28,269) | (410,775)
Net income (loss) | $ (49,899) | $ (148,357) | $ (28,269) | $ (410,775)

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