Quarterly report pursuant to Section 13 or 15(d)

Reportable Segments - Results of Operations by Segment (Detail)

v3.19.3
Reportable Segments - Results of Operations by Segment (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 9 Months Ended
Sep. 30, 2019
Mar. 31, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Revenues:          
Revenues $ 160,083 $ 157,397 $ 123,395 $ 316,114 $ 351,673
Operating gross margin:          
Total operating gross margin 22,268 11,424 1,932 45,259 (8,643)
General and administrative expense (5,983) (8,147) (14,495) (11,593) (28,984)
Loss on impairment 0 0 (43,990) 0 (43,990)
Gain (loss) on disposition of assets, net (92) 384 9 (145) (126)
Reorganization items (211) (92,977) 0 (1,173) 0
Total operating income (loss) 15,982 (89,316) (56,544) 32,348 (81,743)
Interest expense (7,118) (274) (11,350) (14,781) (33,787)
Interest income 362 8 23 736 76
Other (258) (10) (709) (902) (1,609)
Income (loss) before income taxes 8,968 (89,592) (68,580) 17,401 (117,063)
Reimbursable revenue          
Revenues:          
Revenues 23,152 28,541 13,404 41,617 40,440
Exxon Neftegas Limited | Reimbursable revenue          
Revenues:          
Revenues   $ 26,300   $ 37,100 $ 34,600
Exxon Neftegas Limited | Customer Concentration Risk | Sales Revenue, Net          
Operating gross margin:          
Percentage of revenue from major customer   31.20%   27.70% 25.70%
Exxon Neftegas Limited | Customer Concentration Risk | Sales Revenue, Net | Reimbursable revenue          
Operating gross margin:          
Percentage of revenue from major customer   17.70%   18.40%  
Exxon Neftegas Limited | Customer Concentration Risk | Sales Revenue, Net Of Reimbursable Revenues | Reimbursable revenue          
Operating gross margin:          
Percentage of revenue from major customer         17.90%
Total rental tools services          
Revenues:          
Revenues 73,323 $ 73,704 71,095 $ 148,414 $ 185,338
Operating gross margin:          
Total operating gross margin 15,371 13,708 13,875 33,943 21,501
U.S. rental tools          
Revenues:          
Revenues 49,256 52,595 50,944 102,192 127,775
Operating gross margin:          
Total operating gross margin 13,446 17,289 16,588 31,317 30,903
International rental tools          
Revenues:          
Revenues 24,067 21,109 20,151 46,222 57,563
Operating gross margin:          
Total operating gross margin 1,925 (3,581) (2,713) 2,626 (9,402)
Total drilling services          
Revenues:          
Revenues 86,760 83,693 52,300 167,700 166,335
Operating gross margin:          
Total operating gross margin 6,897 (2,284) (11,943) 11,316 (30,144)
U.S. (lower 48) drilling          
Revenues:          
Revenues 14,487 6,627 4,530 26,966 9,167
Operating gross margin:          
Total operating gross margin 2,505 (1,508) (3,402) 3,485 (12,443)
International & Alaska drilling          
Revenues:          
Revenues 72,273 77,066 47,770 140,734 157,168
Operating gross margin:          
Total operating gross margin $ 4,392 $ (776) $ (8,541) $ 7,831 $ (17,701)
International & Alaska drilling | Exxon Neftegas Limited          
Operating gross margin:          
Percentage of revenue from major customer   63.80%   62.20%  
International & Alaska drilling | Exxon Neftegas Limited | Reimbursable revenue          
Operating gross margin:          
Percentage of revenue from major customer   46.60%   49.80%  
International & Alaska drilling | Exxon Neftegas Limited | Customer Concentration Risk | Sales Revenue, Net          
Operating gross margin:          
Percentage of revenue from major customer         57.50%
International & Alaska drilling | Exxon Neftegas Limited | Customer Concentration Risk | Sales Revenue, Net Of Reimbursable Revenues          
Operating gross margin:          
Percentage of revenue from major customer         47.60%