Parent, Guarantor, Non-Guarantor Unaudited Consolidating Condensed Financial Statements - Consolidating Condensed Statement of Operations (Detail) - USD ($) $ in Thousands |
3 Months Ended |
6 Months Ended |
Jun. 30, 2015 |
Jun. 30, 2014 |
Jun. 30, 2015 |
Jun. 30, 2014 |
Condensed Financial Statements [Line Items] |
|
|
|
|
Total revenues |
$ 185,941
|
$ 254,234
|
$ 390,017
|
$ 483,459
|
Operating expenses |
143,569
|
174,569
|
282,839
|
340,594
|
Depreciation and amortization |
38,351
|
36,180
|
78,890
|
70,517
|
Total operating gross margin |
4,021
|
43,485
|
28,288
|
72,348
|
General and administration expense |
(9,511)
|
(7,007)
|
(20,348)
|
(15,971)
|
Other Asset Impairment Charges |
(2,316)
|
0
|
(2,316)
|
0
|
Gain (loss) on disposition of assets, net |
(138)
|
1,019
|
2,303
|
890
|
Total operating income (loss) |
(7,944)
|
37,497
|
7,927
|
57,267
|
Other income and (expense): |
|
|
|
|
Interest expense |
(11,396)
|
(10,599)
|
(22,474)
|
(22,638)
|
Interest income |
19
|
88
|
202
|
120
|
Loss on extinguishment of debt |
0
|
(479)
|
0
|
(30,152)
|
Change in fair value of derivative positions |
|
(479)
|
|
|
Other |
(1,529)
|
1,032
|
(2,909)
|
1,927
|
Equity in net earnings of subsidiaries |
0
|
0
|
0
|
0
|
Total other expense |
(12,906)
|
(9,958)
|
(25,181)
|
(50,743)
|
Income (loss) before income taxes |
(20,850)
|
27,539
|
(17,254)
|
6,524
|
Income tax (benefit) |
(6,916)
|
11,702
|
(7,098)
|
3,079
|
Deferred Income Tax Expense (Benefit) |
|
|
17,126
|
(8,358)
|
Net income (loss) |
(13,934)
|
15,837
|
(10,156)
|
3,445
|
Less: Net income (loss) attributable to noncontrolling interest |
95
|
156
|
651
|
313
|
Net income (loss) attributable to controlling interest |
(14,029)
|
15,681
|
(10,807)
|
3,132
|
Parent [Member] |
|
|
|
|
Condensed Financial Statements [Line Items] |
|
|
|
|
Total revenues |
0
|
0
|
0
|
0
|
Operating expenses |
0
|
0
|
0
|
0
|
Depreciation and amortization |
0
|
0
|
0
|
0
|
Total operating gross margin |
0
|
0
|
0
|
0
|
General and administration expense |
(891)
|
(234)
|
(1,004)
|
(304)
|
Other Asset Impairment Charges |
0
|
|
0
|
|
Gain (loss) on disposition of assets, net |
0
|
0
|
0
|
(80)
|
Total operating income (loss) |
(891)
|
(234)
|
(1,004)
|
(384)
|
Other income and (expense): |
|
|
|
|
Interest expense |
(11,066)
|
(11,299)
|
(22,125)
|
(24,014)
|
Interest income |
165
|
96
|
583
|
535
|
Loss on extinguishment of debt |
|
|
|
(30,152)
|
Change in fair value of derivative positions |
|
(479)
|
|
|
Other |
0
|
0
|
0
|
0
|
Equity in net earnings of subsidiaries |
(8,392)
|
20,659
|
597
|
31,149
|
Total other expense |
(19,293)
|
8,977
|
(20,945)
|
(22,482)
|
Income (loss) before income taxes |
(20,184)
|
8,743
|
(21,949)
|
(22,866)
|
Income tax (benefit) |
(6,155)
|
(6,938)
|
(11,142)
|
(25,998)
|
Deferred Income Tax Expense (Benefit) |
|
|
(22,414)
|
(19,621)
|
Net income (loss) |
(14,029)
|
15,681
|
(10,807)
|
3,132
|
Less: Net income (loss) attributable to noncontrolling interest |
0
|
0
|
0
|
0
|
Net income (loss) attributable to controlling interest |
(14,029)
|
15,681
|
(10,807)
|
3,132
|
Guarantor [Member] |
|
|
|
|
Condensed Financial Statements [Line Items] |
|
|
|
|
Total revenues |
63,276
|
143,171
|
142,672
|
266,602
|
Operating expenses |
35,627
|
80,929
|
79,772
|
157,477
|
Depreciation and amortization |
23,958
|
21,008
|
47,268
|
41,175
|
Total operating gross margin |
3,691
|
41,234
|
15,632
|
67,950
|
General and administration expense |
(12,924)
|
(6,355)
|
(23,039)
|
(14,819)
|
Other Asset Impairment Charges |
0
|
|
0
|
|
Gain (loss) on disposition of assets, net |
(6)
|
512
|
45
|
432
|
Total operating income (loss) |
(9,239)
|
35,391
|
(7,362)
|
53,563
|
Other income and (expense): |
|
|
|
|
Interest expense |
(323)
|
(35)
|
(340)
|
(85)
|
Interest income |
3
|
201
|
5
|
378
|
Loss on extinguishment of debt |
|
|
|
0
|
Change in fair value of derivative positions |
|
0
|
|
|
Other |
11
|
57
|
20
|
184
|
Equity in net earnings of subsidiaries |
0
|
0
|
0
|
0
|
Total other expense |
(309)
|
223
|
(315)
|
477
|
Income (loss) before income taxes |
(9,548)
|
35,614
|
(7,677)
|
54,040
|
Income tax (benefit) |
(2,361)
|
13,466
|
(2,809)
|
19,849
|
Deferred Income Tax Expense (Benefit) |
|
|
6,574
|
8,917
|
Net income (loss) |
(7,187)
|
22,148
|
(4,868)
|
34,191
|
Less: Net income (loss) attributable to noncontrolling interest |
0
|
0
|
0
|
0
|
Net income (loss) attributable to controlling interest |
(7,187)
|
22,148
|
(4,868)
|
34,191
|
Non-Guarantor [Member] |
|
|
|
|
Condensed Financial Statements [Line Items] |
|
|
|
|
Total revenues |
162,703
|
155,832
|
313,633
|
304,964
|
Operating expenses |
147,980
|
138,409
|
269,355
|
271,224
|
Depreciation and amortization |
14,393
|
15,172
|
31,622
|
29,342
|
Total operating gross margin |
330
|
2,251
|
12,656
|
4,398
|
General and administration expense |
4,304
|
(418)
|
3,695
|
(848)
|
Other Asset Impairment Charges |
(2,316)
|
|
(2,316)
|
|
Gain (loss) on disposition of assets, net |
(132)
|
507
|
2,258
|
538
|
Total operating income (loss) |
2,186
|
2,340
|
16,293
|
4,088
|
Other income and (expense): |
|
|
|
|
Interest expense |
(3,010)
|
(1,913)
|
(3,338)
|
(4,412)
|
Interest income |
2,854
|
2,439
|
2,943
|
5,080
|
Loss on extinguishment of debt |
|
|
|
0
|
Change in fair value of derivative positions |
|
0
|
|
|
Other |
(1,540)
|
975
|
(2,929)
|
1,743
|
Equity in net earnings of subsidiaries |
0
|
0
|
0
|
0
|
Total other expense |
(1,696)
|
1,501
|
(3,324)
|
2,411
|
Income (loss) before income taxes |
490
|
3,841
|
12,969
|
6,499
|
Income tax (benefit) |
1,600
|
5,174
|
6,853
|
9,228
|
Deferred Income Tax Expense (Benefit) |
|
|
(1,286)
|
2,346
|
Net income (loss) |
(1,110)
|
(1,333)
|
6,116
|
(2,729)
|
Less: Net income (loss) attributable to noncontrolling interest |
95
|
156
|
651
|
313
|
Net income (loss) attributable to controlling interest |
(1,205)
|
(1,489)
|
5,465
|
(3,042)
|
Eliminations [Member] |
|
|
|
|
Condensed Financial Statements [Line Items] |
|
|
|
|
Total revenues |
(40,038)
|
(44,769)
|
(66,288)
|
(88,107)
|
Operating expenses |
(40,038)
|
(44,769)
|
(66,288)
|
(88,107)
|
Depreciation and amortization |
0
|
0
|
0
|
0
|
Total operating gross margin |
0
|
0
|
0
|
0
|
General and administration expense |
0
|
0
|
0
|
0
|
Other Asset Impairment Charges |
0
|
|
0
|
|
Gain (loss) on disposition of assets, net |
0
|
0
|
0
|
0
|
Total operating income (loss) |
0
|
0
|
0
|
0
|
Other income and (expense): |
|
|
|
|
Interest expense |
3,003
|
2,648
|
3,329
|
5,873
|
Interest income |
(3,003)
|
(2,648)
|
(3,329)
|
(5,873)
|
Loss on extinguishment of debt |
|
|
|
0
|
Change in fair value of derivative positions |
|
0
|
|
|
Other |
0
|
0
|
0
|
0
|
Equity in net earnings of subsidiaries |
8,392
|
(20,659)
|
(597)
|
(31,149)
|
Total other expense |
8,392
|
(20,659)
|
(597)
|
(31,149)
|
Income (loss) before income taxes |
8,392
|
(20,659)
|
(597)
|
(31,149)
|
Income tax (benefit) |
0
|
0
|
0
|
0
|
Deferred Income Tax Expense (Benefit) |
|
|
0
|
0
|
Net income (loss) |
8,392
|
(20,659)
|
(597)
|
(31,149)
|
Less: Net income (loss) attributable to noncontrolling interest |
0
|
0
|
0
|
0
|
Net income (loss) attributable to controlling interest |
$ 8,392
|
$ (20,659)
|
$ (597)
|
$ (31,149)
|