Registration of securities issued in business combination transactions

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

v2.4.0.8
Reportable Segments - Results of Operations by Geographic Area (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 12 Months Ended
Mar. 31, 2014
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
Revenues:                          
Total revenues $ 229,225 $ 243,321 $ 237,762 $ 225,954 $ 167,135 $ 157,171 $ 165,200 $ 178,895 $ 176,495   $ 874,172 $ 677,761 $ 686,234
Operating gross margin:                          
Total operating gross margin 28,863 48,564 [1] 48,733 [1] 50,273 [1] 20,877 [1] 16,637 [1] 34,261 [1] 46,914 [1] 53,744 [1]   168,447 [1] 151,556 [1] 157,421
General and administrative expense (8,964) [2]       (12,845) [2]           (68,025) [2] (46,257) [2] (31,567) [2]
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 (129)       1,148           3,994 1,974 3,659
Total operating income (loss) 19,770 28,516 35,589 28,587 9,180 (8,297) 25,903 40,978 48,689   101,872 107,273 (41,837)
Interest expense (12,039)       (10,006)           (47,820) (33,542) (22,594)
Interest income 32       59           2,450 153 256
Loss on extinguishment of debt (29,673)       0           (5,218) (2,130) 0
Changes in fair value of derivative positions                     53 55 (110)
Other 895       (165)           1,450 (832) (1,127)
Income (loss) before income taxes (21,015)       (932)           52,787 70,977 (65,412)
Long-lived assets:                          
Total long-lived assets 874,300 871,356 [3]       793,197 [3]         871,356 [3] 793,197 [3]  
Africa and Middle East [Member]
                          
Revenues:                          
Total revenues                     58,416 26,528 6,774
Operating gross margin:                          
Total operating gross margin                     (383) [4] (2,027) [4] (8,724) [4]
Long-lived assets:                          
Total long-lived assets   110,336 [3]       25,032 [3]         110,336 [3] 25,032 [3]  
Asia Pacific [Member]
                          
Revenues:                          
Total revenues                     170,165 117,392 147,643
Operating gross margin:                          
Total operating gross margin                     21,995 [4] 16,550 [4] 23,528 [4]
Long-lived assets:                          
Total long-lived assets   44,606 [3]       18,688 [3]         44,606 [3] 18,688 [3]  
CIS [Member]
                          
Revenues:                          
Total revenues                     55,165 44,312 67,255
Operating gross margin:                          
Total operating gross margin                     11,888 [4] (9,580) [4] 8,709 [4]
Long-lived assets:                          
Total long-lived assets   55,722 [3]       110,848 [3]         55,722 [3] 110,848 [3]  
Europe [Member]
                          
Revenues:                          
Total revenues                     16,788 0 0
Operating gross margin:                          
Total operating gross margin                     274 [4] 0 [4] 0 [4]
Long-lived assets:                          
Total long-lived assets   82,473 [3]       0 [3]         82,473 [3] 0 [3]  
Latin America [Member]
                          
Revenues:                          
Total revenues                     120,261 103,540 96,810
Operating gross margin:                          
Total operating gross margin                     1,140 [4] 9,581 [4] 1,126 [4]
Long-lived assets:                          
Total long-lived assets   15,198 [3]       63,899 [3]         15,198 [3] 63,899 [3]  
United States [Member]
                          
Revenues:                          
Total revenues                     453,377 385,989 367,752
Operating gross margin:                          
Total operating gross margin                     133,533 [4] 137,032 [4] 132,782 [4]
Long-lived assets:                          
Total long-lived assets   $ 563,021 [3]       $ 574,730 [3]         $ 563,021 [3] $ 574,730 [3]  
[1] As the Company modified its reporting segments to be consistent with recent organizational changes to improve our drilling organization, expenses related to our U.S. Barge Drilling segment were found to be incorrectly included in our general and administrative expense during the first through third quarters of the current year. These expenses have been appropriately reclassified to be included as part of the segment operating expenses, therefore our operating gross margin for each of the first three quarters will not agree to the respective 10-Q reports for the current year only.
[2] General and administration expenses for field operations are included in operating expenses.
[3] Long-lived assets primarily consist of property, plant and equipment, net and exclude assets held for sale, if any
[4] Operating income is calculated as revenues less direct operating expenses, including depreciation and amortization expense.