Quarterly report pursuant to Section 13 or 15(d)

Parent, Guarantor, Non-Guarantor Unaudited Consolidating Condensed Financial Statements - Consolidating Condensed Statement of Operations (Detail)

v3.10.0.1
Parent, Guarantor, Non-Guarantor Unaudited Consolidating Condensed Financial Statements - Consolidating Condensed Statement of Operations (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Sep. 30, 2018
Sep. 30, 2017
Condensed Financial Statements [Line Items]                
Revenues $ 123,395     $ 118,308     $ 351,673 $ 326,186
Expenses:                
Operating expenses 93,943     88,120     277,111 263,575
Depreciation and amortization 27,520     30,067     83,205 93,251
Total expenses 121,463     118,187     360,316 356,826
Total operating gross margin (loss) 1,932     121     (8,643) (30,640)
General and administrative expense (14,495)     (7,033)     (28,984) (20,576)
Loss on impairment (43,990)     0     (43,990) 0
Gain (loss) on disposition of assets, net 9     97     (126) (368)
Total operating income (loss) (56,544)     (6,815)     (81,743) (51,584)
Other income (expense):                
Interest expense (11,350)     (11,067)     (33,787) (33,032)
Interest income 23     128     76 160
Other (709)     (638)     (1,609) 452
Equity in net earnings of subsidiaries 0     0     0 0
Total other income (expense) (12,036)     (11,577)     (35,320) (32,420)
Income (loss) before income taxes (68,580)     (18,392)     (117,063) (84,004)
Income tax expense (benefit) 2,371     1,919     5,561 6,004
Net income (loss) (70,951) $ (22,877) $ (28,796) (20,311) $ (29,888) $ (39,809) (122,624) (90,008)
Less: Convertible preferred stock dividend 906     906     2,719 2,145
Net income (loss) available to common stockholders (71,857)     (21,217)     (125,343) (92,153)
Reportable Legal Entities | Parent                
Condensed Financial Statements [Line Items]                
Revenues 0     0     0 0
Expenses:                
Operating expenses 0     0     0 0
Depreciation and amortization 0     0     0 0
Total expenses 0     0     0 0
Total operating gross margin (loss) 0     0     0 0
General and administrative expense (96)     (96)     (340) (244)
Loss on impairment 0           0  
Gain (loss) on disposition of assets, net 0     0     0 0
Total operating income (loss) (96)     (96)     (340) (244)
Other income (expense):                
Interest expense (12,072)     (11,742)     (36,214) (35,221)
Interest income 127     259     447 592
Other 0     0     0 0
Equity in net earnings of subsidiaries (57,588)     (8,172)     (85,039) (45,774)
Total other income (expense) (69,533)     (19,655)     (120,806) (80,403)
Income (loss) before income taxes (69,629)     (19,751)     (121,146) (80,647)
Income tax expense (benefit) 1,322     560     1,478 9,361
Net income (loss) (70,951)     (20,311)     (122,624) (90,008)
Less: Convertible preferred stock dividend 906     906     2,719 2,145
Net income (loss) available to common stockholders (71,857)     (21,217)     (125,343) (92,153)
Reportable Legal Entities | Guarantor                
Condensed Financial Statements [Line Items]                
Revenues 63,178     46,820     156,766 116,203
Expenses:                
Operating expenses 31,039     24,085     83,231 70,362
Depreciation and amortization 19,680     20,025     59,163 61,483
Total expenses 50,719     44,110     142,394 131,845
Total operating gross margin (loss) 12,459     2,710     14,372 (15,642)
General and administrative expense (14,421)     (6,823)     (28,408) (19,996)
Loss on impairment (34,209)           (34,209)  
Gain (loss) on disposition of assets, net 54     0     2 (242)
Total operating income (loss) (36,117)     (4,113)     (48,243) (35,880)
Other income (expense):                
Interest expense (44)     (90)     129 (175)
Interest income 183     206     544 563
Other (2)     13     14 59
Equity in net earnings of subsidiaries 0     0     0 0
Total other income (expense) 137     129     687 447
Income (loss) before income taxes (35,980)     (3,984)     (47,556) (35,433)
Income tax expense (benefit) 59     12     665 (7,150)
Net income (loss) (36,039)     (3,996)     (48,221) (28,283)
Less: Convertible preferred stock dividend 0     0     0 0
Net income (loss) available to common stockholders (36,039)     (3,996)     (48,221) (28,283)
Reportable Legal Entities | Non-Guarantor                
Condensed Financial Statements [Line Items]                
Revenues 76,316     89,027     240,579 262,293
Expenses:                
Operating expenses 79,003     81,574     239,552 245,523
Depreciation and amortization 7,840     10,042     24,042 31,768
Total expenses 86,843     91,616     263,594 277,291
Total operating gross margin (loss) (10,527)     (2,589)     (23,015) (14,998)
General and administrative expense 22     (114)     (236) (336)
Loss on impairment (9,781)           (9,781)  
Gain (loss) on disposition of assets, net (45)     97     (128) (126)
Total operating income (loss) (20,331)     (2,606)     (33,160) (15,460)
Other income (expense):                
Interest expense (2,866)     (1,959)     (7,022) (5,971)
Interest income 3,345     2,387     8,405 7,340
Other (707)     (651)     (1,623) 393
Equity in net earnings of subsidiaries 0     0     0 0
Total other income (expense) (228)     (223)     (240) 1,762
Income (loss) before income taxes (20,559)     (2,829)     (33,400) (13,698)
Income tax expense (benefit) 990     1,347     3,418 3,793
Net income (loss) (21,549)     (4,176)     (36,818) (17,491)
Less: Convertible preferred stock dividend 0     0     0 0
Net income (loss) available to common stockholders (21,549)     (4,176)     (36,818) (17,491)
Eliminations                
Condensed Financial Statements [Line Items]                
Revenues (16,099)     (17,539)     (45,672) (52,310)
Expenses:                
Operating expenses (16,099)     (17,539)     (45,672) (52,310)
Depreciation and amortization 0     0     0 0
Total expenses (16,099)     (17,539)     (45,672) (52,310)
Total operating gross margin (loss) 0     0     0 0
General and administrative expense 0     0     0 0
Loss on impairment 0           0  
Gain (loss) on disposition of assets, net 0     0     0 0
Total operating income (loss) 0     0     0 0
Other income (expense):                
Interest expense 3,632     2,724     9,320 8,335
Interest income (3,632)     (2,724)     (9,320) (8,335)
Other 0     0     0 0
Equity in net earnings of subsidiaries 57,588     8,172     85,039 45,774
Total other income (expense) 57,588     8,172     85,039 45,774
Income (loss) before income taxes 57,588     8,172     85,039 45,774
Income tax expense (benefit) 0     0     0 0
Net income (loss) 57,588     8,172     85,039 45,774
Less: Convertible preferred stock dividend 0     0     0 0
Net income (loss) available to common stockholders $ 57,588     $ 8,172     $ 85,039 $ 45,774