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Commitments Contingencies and Other Matters - Additional Information (Detail)
 12 Months Ended
Dec. 31, 2016
USD ($)
Commitments and Contingencies Disclosure [Line Items]  
Letters of credit, collateral for retrospective premiums and retained losses $ 38,200,000
Commitments to purchase major equipment 68,400,000
Current obligation 17,000,000
Purchase obligations for 2017 9,500,000
General liability insurance policy, deductible per occurrence 2,000,000
Workers' compensation insurance policy, deductible per occurrence 1,500,000
Automobile liability insurance policy, deductible per occurrence 2,000,000
Equipment insurance policy, deductible per occurrence $ 1,000,000
Employment Agreements  
Commitments and Contingencies Disclosure [Line Items]  
Initial agreement term 3 years
Agreement termination description Under specified circumstances, the Company may terminate the executive’s employment under his Employment Agreement for Cause (as defined in the Employment Agreement) by either (i) providing written notice 10 days before the effective date of such termination and by granting at least 10 days to cure the cause for such termination or (ii) by providing written notice of such termination at least 30 days before the effective date of such termination and by granting at least 20 days to cure the cause for such termination, provided that if the matter is reasonably determined by the Company to not be capable of being cured, the executive may be terminated for cause on the date the written notice is delivered.
Accelerated vesting period description Company will accelerate vesting of all options and restricted stock awards on the 60th day following the executive’s termination
Termination benefits description If a termination by the Company other than for Cause or by the executive for Good Reason occurs following a Change in Control (as defined in his Employment Agreement, which for the President of Patterson-UTI Drilling includes a change in control of the Company or, in certain circumstances, of Patterson-UTI Drilling), the executive will generally be entitled to the same severance payments and benefits described above except that the pro-rated lump-sum payment for annual cash bonuses will be based on his highest annual cash bonus for the last three years, and the executive will be entitled to 36 months (in the case of the Chief Executive Officer) or 30 months (in the case of the General Counsel and President of Patterson-UTI Drilling) of subsidized benefits continuation coverage.
Period considered for calculating annual cash bonus payment 3 years
Specified Employees | Change in Control Agreements  
Commitments and Contingencies Disclosure [Line Items]  
Automatic renewal period 12 months
New term notification period 90 days
Chairman of the Board | Change in Control Agreements  
Commitments and Contingencies Disclosure [Line Items]  
Employee entitlement ratio 2.5
Continued coverage entitlement of welfare plan period 3 years
Senior Vice Presidents | Change in Control Agreements  
Commitments and Contingencies Disclosure [Line Items]  
Employee entitlement ratio 2
Continued coverage entitlement of welfare plan period 2 years
Chief Executive Officer | Employment Agreements  
Commitments and Contingencies Disclosure [Line Items]  
Employee entitlement ratio on sum of base salary and average cash bonus 3
Period for subsidized benefit continuation coverage 36 months
General Counsel and President | Employment Agreements  
Commitments and Contingencies Disclosure [Line Items]  
Employee entitlement ratio on sum of base salary and average cash bonus 2.5
Period for subsidized benefit continuation coverage 30 months
Letter of Credit  
Commitments and Contingencies Disclosure [Line Items]  
Amount drawn under letters of credit $ 0
Minimum | Employment Agreements  
Commitments and Contingencies Disclosure [Line Items]  
Agreement termination notice period 30 days
Seventy Seven Energy Inc.  
Commitments and Contingencies Disclosure [Line Items]  
Termination fee payable in certain circumstances $ 100,000,000
Termination fee payable in certain other circumstances 40,000,000
Seventy Seven Energy Inc. | Maximum  
Commitments and Contingencies Disclosure [Line Items]  
Business acquisition, reimbursement income (expense) upon approval failure $ 7,500,000