Quarterly report pursuant to Section 13 or 15(d)

Parent, Guarantor, Non-Guarantor Unaudited Consolidating Condensed Financial Statements (Details 1)

v2.4.0.6
Parent, Guarantor, Non-Guarantor Unaudited Consolidating Condensed Financial Statements (Details 1) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Dec. 31, 2011
Statement of Operations          
Total revenues $ 178,925 $ 172,812 $ 355,494 $ 328,991  
Operating expenses 104,526 104,683 199,458 212,059  
Depreciation and amortization 27,959 27,332 55,578 54,931  
Total operating gross margin 46,440 40,797 100,458 62,001 11,700
General and administration expense (7,420) (7,948) (12,917) (14,752)  
Gain on disposition of assets, net 1,368 366 1,860 1,370  
Total operating income (loss) 40,388 33,215 89,401 48,619  
Other income and (expense):          
Interest expense (8,925) (5,755) (16,962) (11,616)  
Interest income 53 133 79 179  
Loss on extinguishment of debt (1,649)   (1,649)    
Change in fair value of derivative positions 38 (137) (11) (137)  
Other 20 123 36 134  
Total other expense (10,463) (5,636) (18,507) (11,440)  
Income (benefit) before income taxes 29,925 27,579 70,894 37,179  
Income tax expense:          
Current   7,090   11,109  
Deferred income tax expense   6,374 10,432 7,194  
Total income tax expense (benefit) 9,817 13,464 24,460 18,303  
Net income (loss) 20,108 14,115 46,434 18,876  
Less: Net income (loss) attributable to noncontrolling interest 25 (58) (41) (125)  
Net income (loss) attributable to controlling interest 20,083 14,173 46,475 19,001  
Parent Company [Member]
          
Statement of Operations          
General and administration expense (44) (83) (90) (128)  
Total operating income (loss) (44) (83) (90) (128)  
Other income and (expense):          
Interest expense (9,817) (6,746) (18,818) (13,598)  
Interest income 8,504 8,971 8,600 17,941  
Loss on extinguishment of debt (1,649)   (1,649)    
Change in fair value of derivative positions 38 (137) (11) (137)  
Equity in net earnings of subsidiaries 19,057 36,794 50,957 40,759  
Total other expense 16,133 38,882 39,079 44,965  
Income (benefit) before income taxes 16,089 38,799 38,989 44,837  
Income tax expense:          
Current   (7,817)   (7,882)  
Deferred income tax expense   32,442 7,025 33,718  
Total income tax expense (benefit) (3,994) 24,625 (7,486) 25,836  
Net income (loss) 20,083 14,174 46,475 19,001  
Net income (loss) attributable to controlling interest 20,083 14,174 46,475 19,001  
Guarantor Subsidiaries [Member]
          
Statement of Operations          
Total revenues 104,767 95,435 203,924 182,840  
Operating expenses 47,632 41,224 90,999 91,628  
Depreciation and amortization 15,665 15,387 31,261 30,597  
Total operating gross margin 41,470 38,824 81,664 60,615  
General and administration expense (7,078) (7,798) (12,450) (14,495)  
Gain on disposition of assets, net 197 94 615 904  
Total operating income (loss) 34,589 31,120 69,829 47,024  
Other income and (expense):          
Interest expense (35) (8,909) (71) (17,819)  
Interest income 4,537 190 4,715 380  
Other 23 120 36 120  
Total other expense 4,525 (8,599) 4,680 (17,319)  
Income (benefit) before income taxes 39,114 22,521 74,509 29,705  
Income tax expense:          
Current   9,546   9,768  
Deferred income tax expense   (1,866) 3,832 (1,715)  
Total income tax expense (benefit) 13,668 7,680 27,698 8,053  
Net income (loss) 25,446 14,841 46,811 21,652  
Net income (loss) attributable to controlling interest 25,446 14,841 46,811 21,652  
Non-Guarantor Subsidiaries [Member]
          
Statement of Operations          
Total revenues 98,036 100,323 201,061 208,414  
Operating expenses 80,772 86,405 157,950 182,694  
Depreciation and amortization 12,294 11,945 24,317 24,334  
Total operating gross margin 4,970 1,973 18,794 1,386  
General and administration expense (298) (67) (377) (129)  
Gain on disposition of assets, net 1,171 272 1,245 466  
Total operating income (loss) 5,843 2,178 19,662 1,723  
Other income and (expense):          
Interest expense (2,023) (2,159) (3,972) (3,887)  
Interest income 34,070 3,031 36,771 5,546  
Other (3) 3   14  
Total other expense 32,044 875 32,799 1,673  
Income (benefit) before income taxes 37,887 3,053 52,461 3,396  
Income tax expense:          
Current   5,361   9,223  
Deferred income tax expense   (24,202) (425) (24,809)  
Total income tax expense (benefit) 143 (18,841) 4,248 (15,586)  
Net income (loss) 37,744 21,894 48,213 18,982  
Less: Net income (loss) attributable to noncontrolling interest 25 (58) (41) (125)  
Net income (loss) attributable to controlling interest 37,719 21,952 48,254 19,107  
Consolidation, Eliminations [Member]
          
Statement of Operations          
Total revenues (23,878) (22,946) (49,491) (62,263)  
Operating expenses (23,878) (22,946) (49,491) (62,263)  
Other income and (expense):          
Interest expense 2,950 12,059 5,899 23,688  
Interest income (47,058) (12,059) (50,007) (23,688)  
Equity in net earnings of subsidiaries (19,057) (36,794) (50,957) (40,759)  
Total other expense (63,165) (36,794) (95,065) (40,759)  
Income (benefit) before income taxes (63,165) (36,794) (95,065) (40,759)  
Income tax expense:          
Net income (loss) (63,165) (36,794) (95,065) (40,759)  
Net income (loss) attributable to controlling interest $ (63,165) $ (36,794) $ (95,065) $ (40,759)