Annual report pursuant to Section 13 and 15(d)

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

v2.4.0.6
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, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2011
Mar. 31, 2011
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Condensed Financial Statements [Line Items]                      
Total revenues $ 157,187 $ 165,301 $ 178,925 $ 176,569 $ 181,066 $ 176,589 $ 172,812 $ 156,179 $ 677,982 $ 686,646 $ 659,475
Operating expenses                 414,064 418,144 471,278
Depreciation and amortization                 113,017 112,136 115,030
Total operating gross margin 16,405 34,038 46,440 54,018 44,399 49,966 40,797 21,204 150,901 156,366 73,167
General and administration expense                 (46,052) (31,314) (30,728)
Impairment and other charges         (170,000)         (170,000)  
Provision for reduction in carrying value of certain assets                 0 (1,350) (1,952)
Gain on disposition of assets, net                 1,974 3,659 4,620
Total operating income (loss) (8,317) 25,739 40,388 49,013 (133,215) 41,959 33,215 15,402 106,823 (42,639) 45,107
Other income and (expense):                      
Interest expense                 (33,542) (22,594) (26,805)
Changes in fair value of derivative positions                 55 (110)  
Interest income                 153 256 257
Loss on extinguishment of debt                 (2,130)   (7,209)
Other                 (382) (325) 155
Equity in net earnings of subsidiaries                       
Total other expense                 (35,846) (22,773) (33,602)
Income (benefit) before income taxes                 70,977 (65,412) 11,505
Income tax expense (benefit):                      
Current                 18,042 33,608 27,521
Deferred                 15,837 (48,375) (1,308)
Income tax expense (benefit)                 33,879 (14,767) 26,213
Net income (loss)                 37,098 (50,645) (14,708)
Less: Net (loss) attributable to noncontrolling interest                 (215) (194) (247)
Net income (loss) attributable to controlling interest (20,098) 10,936 20,083 26,392 (90,176) 20,725 14,173 4,827 37,313 (50,451) (14,461)
Parent [Member]
                      
Condensed Financial Statements [Line Items]                      
Total revenues                       
Operating expenses                       
Depreciation and amortization                       
Total operating gross margin                       
General and administration expense                 (182) (218) (225)
Gain on disposition of assets, net                       
Total operating income (loss)                 (182) (218) (225)
Other income and (expense):                      
Interest expense                 (37,326) (26,654) (30,771)
Changes in fair value of derivative positions                 55 (110)  
Interest income                 9,863 18,131 42,000
Loss on extinguishment of debt                 (2,130)   (7,209)
Other                       
Equity in net earnings of subsidiaries                 43,884 (23,484) (22,962)
Total other expense                 14,346 (32,117) (18,942)
Income (benefit) before income taxes                 14,164 (32,335) (19,167)
Income tax expense (benefit):                      
Current                 (25,406) (13,402) 139
Deferred                 2,257 31,518 (4,845)
Income tax expense (benefit)                 (23,149) 18,116 (4,706)
Net income (loss)                 37,313 (50,451) (14,461)
Less: Net (loss) attributable to noncontrolling interest                       
Net income (loss) attributable to controlling interest                 37,313 (50,451) (14,461)
Guarantor [Member]
                      
Condensed Financial Statements [Line Items]                      
Total revenues                 393,959 376,229 366,947
Operating expenses                 185,328 175,465 237,584
Depreciation and amortization                 65,354 62,744 63,402
Total operating gross margin                 143,277 138,020 65,961
General and administration expense                 (45,433) (30,859) (30,193)
Impairment and other charges                   (170,000)  
Provision for reduction in carrying value of certain assets                   (1,350) (1,952)
Gain on disposition of assets, net                 775 2,706 2,067
Total operating income (loss)                 98,619 (61,483) 35,883
Other income and (expense):                      
Interest expense                 (151) (17,889) (35,640)
Changes in fair value of derivative positions                       
Interest income                 5,073 750 757
Loss on extinguishment of debt                       
Other                 (370) (345) 88
Equity in net earnings of subsidiaries                       
Total other expense                 4,552 (17,484) (34,795)
Income (benefit) before income taxes                 103,171 (78,967) 1,088
Income tax expense (benefit):                      
Current                 32,781 27,169 (189)
Deferred                 15,429 (57,030) 2,323
Income tax expense (benefit)                 48,210 (29,861) 2,134
Net income (loss)                 54,961 (49,106) (1,046)
Less: Net (loss) attributable to noncontrolling interest                       
Net income (loss) attributable to controlling interest                 54,961 (49,106) (1,046)
Non-Guarantor [Member]
                      
Condensed Financial Statements [Line Items]                      
Total revenues                 385,279 426,491 401,617
Operating expenses                 329,992 358,753 342,783
Depreciation and amortization                 47,663 49,392 51,628
Total operating gross margin                 7,624 18,346 7,206
General and administration expense                 (437) (237) (310)
Gain on disposition of assets, net                 1,199 953 2,553
Total operating income (loss)                 8,386 19,062 9,449
Other income and (expense):                      
Interest expense                 (8,739) (8,865) (16,185)
Changes in fair value of derivative positions                       
Interest income                 41,999 12,189 23,291
Loss on extinguishment of debt                       
Other                 (12) 20 67
Equity in net earnings of subsidiaries                       
Total other expense                 33,248 3,344 7,173
Income (benefit) before income taxes                 41,634 22,406 16,622
Income tax expense (benefit):                      
Current                 10,667 19,841 27,571
Deferred                 (1,849) (22,863) 1,214
Income tax expense (benefit)                 8,818 (3,022) 28,785
Net income (loss)                 32,816 25,428 (12,163)
Less: Net (loss) attributable to noncontrolling interest                 (215) (194) (247)
Net income (loss) attributable to controlling interest                 33,031 25,622 (11,916)
Eliminations [Member]
                      
Condensed Financial Statements [Line Items]                      
Total revenues                 (101,256) (116,074) (109,089)
Operating expenses                 (101,256) (116,074) (109,089)
Depreciation and amortization                       
Total operating gross margin                       
Gain on disposition of assets, net                       
Total operating income (loss)                       
Other income and (expense):                      
Interest expense                 12,674 30,814 55,791
Changes in fair value of derivative positions                       
Interest income                 (56,782) (30,814) (65,791)
Loss on extinguishment of debt                       
Other                       
Equity in net earnings of subsidiaries                 (43,884) 23,484 22,962
Total other expense                 (87,992) 23,484 12,962
Income (benefit) before income taxes                 (87,992) 23,484 12,962
Income tax expense (benefit):                      
Current                       
Deferred                       
Income tax expense (benefit)                       
Net income (loss)                 (87,992) 23,484 12,962
Less: Net (loss) attributable to noncontrolling interest                       
Net income (loss) attributable to controlling interest                 $ (87,992) $ 23,484 $ 12,962