Annual report pursuant to Section 13 and 15(d)

Reportable Segments - Results of Operations by Geographic Area (Detail)

v2.4.0.6
Reportable Segments - Results of Operations by Geographic Area (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
Revenues:                      
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 gross margin:                      
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 administrative expense                 (46,052) (31,314) (30,728)
Impairments 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
Interest expense                 (33,542) (22,594) (26,805)
Changes in fair value of derivative positions                 55 (110)  
Loss on extinguishment of debt                 (2,130)   (7,209)
Other                 (382) (325) 155
Income (loss) before income taxes                 70,977 (65,412) 11,505
Long-lived assets:                      
Total long-lived assets 786,158       719,809       786,158 719,809  
Africa and Middle East [Member]
                     
Revenues:                      
Total revenues                 26,528 6,774 22,621
Operating gross margin:                      
Total operating gross margin                 (2,234) (6,383) 659
Long-lived assets:                      
Total long-lived assets 25,032       28,427       25,032 28,427  
Asia Pacific [Member]
                     
Revenues:                      
Total revenues                 39,400 38,477 26,416
Operating gross margin:                      
Total operating gross margin                 (927) 1,933 2,374
Long-lived assets:                      
Total long-lived assets 15,723       18,300       15,723 18,300  
CIS [Member]
                     
Revenues:                      
Total revenues                 122,304 176,421 149,963
Operating gross margin:                      
Total operating gross margin                 6,840 26,402 8,139
Long-lived assets:                      
Total long-lived assets 106,774       119,282       106,774 119,282  
Latin America [Member]
                     
Revenues:                      
Total revenues                 103,540 96,810 103,885
Operating gross margin:                      
Total operating gross margin                 8,990 377 1,210
Long-lived assets:                      
Total long-lived assets 63,899       57,710       63,899 57,710  
United States [Member]
                     
Revenues:                      
Total revenues                 386,210 368,164 356,590
Operating gross margin:                      
Total operating gross margin                 138,232 134,037 60,785
Long-lived assets:                      
Total long-lived assets $ 574,730       $ 496,090       $ 574,730 $ 496,090