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Description of Business and Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Millions |  | 12 Months Ended |
--- | --- | --- | ---
Dec. 22, 2017 | Dec. 31, 2017 | Dec. 31, 2015 | Dec. 31, 2016
Basis Of Consolidation And Presentation [Line Items] |  |  |  |
Current deferred tax assets |  |  |  | $ 36.4
Long-term deferred tax assets |  |  |  | 4.1
Long-term deferred tax liabilities |  |  |  | 32.3
Settlement of fund for eligible participants |  |  | $ 12.3 |
Reimbursement of workers compensation insurance claims included in other current assets |  | $ 30.0 |  | 21.1
Tax Years Beginning After December 31, 2017 |  |  |  |
Basis Of Consolidation And Presentation [Line Items] |  |  |  |
Global Intangible Low-Taxed Income (GILTI) at an effective tax rate | 10.50% |  |  |
Tax Years Beginning After December 31, 2025 |  |  |  |
Basis Of Consolidation And Presentation [Line Items] |  |  |  |
Global Intangible Low-Taxed Income (GILTI) at an effective tax rate | 13.125% |  |  |
Seventy Seven Energy Inc. |  |  |  |
Basis Of Consolidation And Presentation [Line Items] |  |  |  |
Merger date |  | Apr. 20, 2017 |  |
Multi Shot L L C |  |  |  |
Basis Of Consolidation And Presentation [Line Items] |  |  |  |
Merger date |  | Oct. 11, 2017 |  |
Scenario Previously Reported | Accounting Standards Update 2015-17 |  |  |  |
Basis Of Consolidation And Presentation [Line Items] |  |  |  |
Current deferred tax assets |  |  |  | 36.4
Restatement Adjustment | Accounting Standards Update 2015-17 |  |  |  |
Basis Of Consolidation And Presentation [Line Items] |  |  |  |
Long-term deferred tax assets |  |  |  | 4.1
Long-term deferred tax liabilities |  |  |  | $ 32.3

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