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Business Segments - Revenues (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Segment Reporting Revenue Reconciling Item [Line Items] |  |  |  |  |
Total revenues |  | $ 598,452 | $ 867,478 | $ 1,978,388 | $ 2,531,060
Contract Drilling |  |  |  |  |
Segment Reporting Revenue Reconciling Item [Line Items] |  |  |  |  |
Total revenues |  | 317,035 | 365,280 | 1,037,565 | 1,043,005
Pressure Pumping |  |  |  |  |
Segment Reporting Revenue Reconciling Item [Line Items] |  |  |  |  |
Total revenues |  | 208,637 | 421,606 | 707,246 | 1,253,693
Directional Drilling |  |  |  |  |
Segment Reporting Revenue Reconciling Item [Line Items] |  |  |  |  |
Total revenues |  | 47,037 | 51,556 | 150,214 | 152,877
Operating Segments | Contract Drilling |  |  |  |  |
Segment Reporting Revenue Reconciling Item [Line Items] |  |  |  |  |
Total revenues |  | 317,468 | 365,697 | 1,038,705 | 1,044,190
Operating Segments | Pressure Pumping |  |  |  |  |
Segment Reporting Revenue Reconciling Item [Line Items] |  |  |  |  |
Total revenues |  | 208,637 | 421,606 | 707,246 | 1,253,693
Operating Segments | Directional Drilling |  |  |  |  |
Segment Reporting Revenue Reconciling Item [Line Items] |  |  |  |  |
Total revenues |  | 47,037 | 51,556 | 150,214 | 152,877
Other Operations |  |  |  |  |
Segment Reporting Revenue Reconciling Item [Line Items] |  |  |  |  |
Total revenues | [1] | 32,809 | 33,087 | 96,052 | 94,457
Intersegment Elimination |  |  |  |  |
Segment Reporting Revenue Reconciling Item [Line Items] |  |  |  |  |
Total revenues | [2] | $ (7,499) | $ (4,468) | $ (13,829) | $ (14,157)
[1] | Other operations includes the Company’s oilfield rentals business, drilling equipment service business, the electrical controls and automation business, the oil and natural gas working interests and Middle East organizational activities.
[2] | Intercompany revenues consists of contract drilling and revenues from other operations for services provided to contract drilling, pressure pumping and within other operations.

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
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