Commitments and Contingencies	3 Months Ended
Commitments and Contingencies	Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Environmental Basic is subject to various federal, state and local environmental laws and regulations that establish standards and requirements for protection of the environment. Basic cannot predict the future impact of such standards and requirements, which are subject to change and can have retroactive effectiveness. Basic continues to monitor the status of these laws and regulations. Currently, Basic has not been fined, cited or notified of any environmental violations that would have a material adverse effect upon its financial position, liquidity or capital resources. However, management recognizes that by the very nature of its business, material costs could be incurred in the near term to maintain compliance. The amount of such future expenditures is not determinable due to several factors, including the unknown magnitude of possible regulation or liabilities, the unknown timing and extent of the corrective actions which may be required, the determination of Basic’s liability in proportion to other responsible parties and the extent to which such expenditures are recoverable from insurance or indemnification. Litigation From time to time, Basic is a party to litigation or other legal proceedings that Basic considers to be a part of the ordinary course of business. Basic is not currently involved in any legal proceedings that it considers probable or reasonably possible, individually or in the aggregate, to result in a material adverse effect on its financial condition, results of operations or liquidity. Sales and Use Tax Audit In 2014, Basic was notified by the Texas State Comptroller’s office that a sales and use tax audit for the period from 2010 through 2013 would be conducted. A preliminary report was issued in the second quarter of 2018 for this audit, and Basic will appeal the preliminary report through the redetermination process. Based on the Company's analysis, the potential liability associated with this audit ranges from $6.0 million to $24.0 million. This range could potentially change in future periods as the appeal and redetermination process progresses. Net of good faith payments made by the Company, the Company currently has $5.1 million in its financial statements as liabilities and the related interest associated with the taxes of $0.3 million is included in interest expense for the three months ended March 31, 2019. Self-Insured Risk Accruals Basic is self-insured up to retention limits as it relates to workers’ compensation, general liability claims, and medical and dental coverage of its employees. Basic generally maintains no physical property damage coverage on its rig fleet, with the exception of certain of its 24-hour workover rigs, newly manufactured rigs and pumping services equipment. Basic has deductibles per occurrence for workers’ compensation, general liability claims, and medical and dental coverage of $4.0 million, $1.0 million, and $0.4 million, respectively. Basic has a $1.0 million deductible per occurrence for automobile liability. Basic maintains accruals in the accompanying consolidated balance sheets related to self-insurance retentions based upon third-party data and claims history. At March 31, 2019, short-term and long-term self-insured risk reserves were $7.2 million and $16.3 million, respectively. At December 31, 2018, short-term and long-term self-insured risk reserves were $6.7 million and $16.3 million, respectively.