Annual report pursuant to Section 13 and 15(d)

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

v2.4.0.8
Parent, Guarantor, Non-Guarantor Unaudited Consolidating Condensed Financial Statements - Consolidating Condensed Statement of Operations (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 12 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2011
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Condensed Financial Statements [Line Items]                        
Total revenues $ 243,321 $ 237,762 $ 225,954 $ 167,135 $ 157,171 $ 165,200 $ 178,895 $ 176,495   $ 874,172 $ 677,761 $ 686,234
Operating expenses                   571,672 413,188 416,677
Depreciation and amortization                   134,053 113,017 112,136
Total operating gross margin 48,564 48,733 50,273 20,877 16,637 34,261 46,914 53,744   168,447 151,556 157,421
General and administration expense                   (68,025) (46,257) (31,567)
Impairments and other charges                 (170,000) 0 0 (170,000)
Provision for reduction in carrying value of certain assets                   (2,544) 0 (1,350)
Gain on disposition of assets, net                   3,994 1,974 3,659
Total operating income (loss) 28,516 35,589 28,587 9,180 (8,297) 25,903 40,978 48,689   101,872 107,273 (41,837)
Other income and (expense):                        
Interest expense                   (47,820) (33,542) (22,594)
Interest income                   2,450 153 256
Loss on extinguishment of debt                   (5,218) (2,130) 0
Changes in fair value of derivative positions                   53 55 (110)
Other                   1,450 (832) (1,127)
Equity in net earnings of subsidiaries                   0 0 0
Total other expense                   (49,085) (36,296) (23,575)
Income (loss) before income taxes                   52,787 70,977 (65,412)
Income tax expense (benefit):                        
Current                   12,909 18,042 33,608
Deferred                   12,699 15,837 (48,375)
Total income tax expense (benefit)                   25,608 33,879 (14,767)
Net income (loss)                   27,179 37,098 (50,645)
Less: Net (loss) attributable to noncontrolling interest                   164 (215) (194)
Net income (loss) attributable to controlling interest 10,172 7,970 8,281 592 (20,098) 10,936 20,083 26,392   27,015 37,313 (50,451)
Parent [Member]
                        
Condensed Financial Statements [Line Items]                        
Total revenues                   0 0 0
Operating expenses                   0 0 0
Depreciation and amortization                   0 0 0
Total operating gross margin                   0 0 0
General and administration expense                   (202) (182) (218)
Impairments and other charges                       0
Provision for reduction in carrying value of certain assets                   0   0
Gain on disposition of assets, net                   0 0 0
Total operating income (loss)                   (202) (182) (218)
Other income and (expense):                        
Interest expense                   (51,439) (37,326) (26,654)
Interest income                   3,824 9,863 18,131
Loss on extinguishment of debt                   (5,218) (2,130) 0
Changes in fair value of derivative positions                   53 55 (110)
Other                   (1) 0 0
Equity in net earnings of subsidiaries                   55,430 43,884 (23,484)
Total other expense                   2,649 14,346 (32,117)
Income (loss) before income taxes                   2,447 14,164 (32,335)
Income tax expense (benefit):                        
Current                   (21,431) (25,406) (13,402)
Deferred                   (3,137) 2,257 31,518
Total income tax expense (benefit)                   (24,568) (23,149) 18,116
Net income (loss)                   27,015 37,313 (50,451)
Less: Net (loss) attributable to noncontrolling interest                   0 0 0
Net income (loss) attributable to controlling interest                   27,015 37,313 (50,451)
Guarantor [Member]
                        
Condensed Financial Statements [Line Items]                        
Total revenues                   468,073 393,738 375,798
Operating expenses                   252,211 184,946 174,955
Depreciation and amortization                   77,416 65,354 62,744
Total operating gross margin                   138,446 143,438 138,099
General and administration expense                   (67,083) (45,758) (30,968)
Impairments and other charges                       (170,000)
Provision for reduction in carrying value of certain assets                   0   (1,350)
Gain on disposition of assets, net                   1,759 775 2,706
Total operating income (loss)                   73,122 98,455 (61,513)
Other income and (expense):                        
Interest expense                   (335) (151) (17,889)
Interest income                   1,761 5,073 750
Loss on extinguishment of debt                   0 0 0
Changes in fair value of derivative positions                   0 0 0
Other                   (143) (206) (315)
Equity in net earnings of subsidiaries                   0 0 0
Total other expense                   1,283 4,716 (17,454)
Income (loss) before income taxes                   74,405 103,171 (78,967)
Income tax expense (benefit):                        
Current                   18,737 32,781 27,169
Deferred                   19,454 15,429 (57,030)
Total income tax expense (benefit)                   38,191 48,210 (29,861)
Net income (loss)                   36,214 54,961 (49,106)
Less: Net (loss) attributable to noncontrolling interest                   0 0 0
Net income (loss) attributable to controlling interest                   36,214 54,961 (49,106)
Non-Guarantor [Member]
                        
Condensed Financial Statements [Line Items]                        
Total revenues                   549,295 385,279 426,491
Operating expenses                   462,657 329,498 357,777
Depreciation and amortization                   56,637 47,663 49,392
Total operating gross margin                   30,001 8,118 19,322
General and administration expense                   (740) (317) (381)
Impairments and other charges                       0
Provision for reduction in carrying value of certain assets                   (2,544)   0
Gain on disposition of assets, net                   2,235 1,199 953
Total operating income (loss)                   28,952 9,000 19,894
Other income and (expense):                        
Interest expense                   (9,930) (8,739) (8,865)
Interest income                   10,749 41,999 12,189
Loss on extinguishment of debt                   0 0 0
Changes in fair value of derivative positions                   0 0 0
Other                   1,594 (626) (812)
Equity in net earnings of subsidiaries                   0 0 0
Total other expense                   2,413 32,634 2,512
Income (loss) before income taxes                   31,365 41,634 22,406
Income tax expense (benefit):                        
Current                   15,603 10,667 19,841
Deferred                   (3,618) (1,849) (22,863)
Total income tax expense (benefit)                   11,985 8,818 (3,022)
Net income (loss)                   19,380 32,816 25,428
Less: Net (loss) attributable to noncontrolling interest                   164 (215) (194)
Net income (loss) attributable to controlling interest                   19,216 33,031 25,622
Eliminations [Member]
                        
Condensed Financial Statements [Line Items]                        
Total revenues                   (143,196) (101,256) (116,055)
Operating expenses                   (143,196) (101,256) (116,055)
Depreciation and amortization                   0 0 0
Total operating gross margin                   0 0 0
General and administration expense                   0 0 0
Impairments and other charges                       0
Provision for reduction in carrying value of certain assets                   0   0
Gain on disposition of assets, net                   0 0 0
Total operating income (loss)                   0 0 0
Other income and (expense):                        
Interest expense                   13,884 12,674 30,814
Interest income                   (13,884) (56,782) (30,814)
Loss on extinguishment of debt                   0 0 0
Changes in fair value of derivative positions                   0 0 0
Other                   0 0 0
Equity in net earnings of subsidiaries                   (55,430) (43,884) 23,484
Total other expense                   (55,430) (87,992) 23,484
Income (loss) before income taxes                   (55,430) (87,992) 23,484
Income tax expense (benefit):                        
Current                   0 0 0
Deferred                   0 0 0
Total income tax expense (benefit)                   0 0 0
Net income (loss)                   (55,430) (87,992) 23,484
Less: Net (loss) attributable to noncontrolling interest                   0 0 0
Net income (loss) attributable to controlling interest                   $ (55,430) $ (87,992) $ 23,484