Property and Equipment	3 Months Ended
Mar. 31, 2020
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment Disclosure [Text Block]	Property and Equipment Capital Expenditures — Our capital expenditure additions were $7.9 million and $18.4 million, including the impact of accruals for capital additions, during the three months ended March 31, 2020 and 2019, respectively. Capital additions during the three months ended March 31, 2020 primarily related to routine expenditures to maintain our fleets, while capital additions during the corresponding period also included the completion of construction on our 17^th AC drilling rig which we deployed in March 2019, and various vehicle and ancillary equipment purchases and upgrades. Gain/Loss on Disposition of Property — We recognized net gains of $0.7 million and $1.1 million during the three months ended March 31, 2020 and 2019, respectively, on the disposition or sale of various property and equipment, including drill pipe and collars and certain older and/or underutilized equipment. Assets Held for Sale — We have various equipment designated as held for sale with values of $1.8 million and $3.4 million in aggregate as of March 31, 2020 and December 31, 2019, respectively, primarily consisting of real estate property for two wireline locations closed during 2019 that were sold in 2020, and the remaining equipment from two SCR drilling rigs which were dismantled for spare parts. During the three months ended March 31, 2020 and 2019, we recognized impairment charges of $1.5 million and $1.0 million, respectively, to reduce the carrying values of assets which were classified as held for sale, to their estimated fair values, based on expected sales prices which are classified as Level 3 inputs as defined by ASC Topic 820, Fair Value Measurements and Disclosures. Impairments — In accordance with ASC Topic 360, Property, Plant and Equipment, we monitor all indicators of potential impairments. We evaluate for potential impairment of long-lived assets when indicators of impairment are present, which may include, among other things, significant adverse changes in industry trends (including revenue rates, utilization rates, oil and natural gas market prices, and industry rig counts). In performing an impairment evaluation, we estimate the future undiscounted net cash flows from the use and eventual disposition of the assets grouped at the lowest level that independent cash flows can be identified. We perform an impairment evaluation and estimate future undiscounted cash flows for each of our asset groups separately, which are our domestic drilling services, international drilling services, well servicing, wireline services and coiled tubing services segments. If the sum of the estimated future undiscounted net cash flows is less than the carrying amount of the asset group, then we determine the fair value of the asset group, and the amount of an impairment charge would be measured as the difference between the carrying amount and the fair value of the assets. Due to the significant decline in industry conditions, commodity prices, and projected utilization of equipment, as well as the COVID-19 pandemic’s impact on our industry, our projected cash flows declined during the first quarter of 2020, and we performed recoverability testing on all our reporting units. As a result of this analysis, we incurred impairment charges of $16.4 million to reduce the carrying values of our coiled tubing assets to their estimated fair values. For all our other reporting units, excluding coiled tubing, we determined that the sum of the estimated future undiscounted net cash flows were in excess of the carrying amounts and that no impairment existed for these reporting units at March 31, 2020. The assumptions we use in the evaluation for impairment are inherently uncertain and require management judgment. Although we believe the assumptions and estimates used in our impairment analysis are reasonable, different assumptions and estimates could materially impact the analysis and resulting conclusions. The most significant inputs used in our impairment analysis include the projected utilization and pricing of our services, as well as the estimated proceeds upon any future sale or disposal of the assets, all of which are classified as Level 3 inputs as defined by ASC Topic 820, Fair Value Measurements and Disclosures. If commodity prices decrease or remain at current levels for an extended period of time, or if the demand for any of our services decreases below what we are currently projecting, our estimated cash flows may decrease and our estimates of the fair value of certain assets may decrease as well. If any of the foregoing were to occur, we could incur impairment charges on the related assets.

Property and Equipment

Capital Expenditures — Our capital expenditure additions were $7.9 million and $18.4 million, including the impact of accruals for capital additions, during the three months ended March 31, 2020 and 2019, respectively. Capital additions during the three months ended March 31, 2020 primarily related to routine expenditures to maintain our fleets, while capital additions during the corresponding period also included the completion of construction on our 17^th AC drilling rig which we deployed in March 2019, and various vehicle and ancillary equipment purchases and upgrades.

Gain/Loss on Disposition of Property — We recognized net gains of $0.7 million and $1.1 million during the three months ended March 31, 2020 and 2019, respectively, on the disposition or sale of various property and equipment, including drill pipe and collars and certain older and/or underutilized equipment.

Assets Held for Sale — We have various equipment designated as held for sale with values of $1.8 million and $3.4 million in aggregate as of March 31, 2020 and December 31, 2019, respectively, primarily consisting of real estate property for two wireline locations closed during 2019 that were sold in 2020, and the remaining equipment from two SCR drilling rigs which were dismantled for spare parts.

During the three months ended March 31, 2020 and 2019, we recognized impairment charges of $1.5 million and $1.0 million, respectively, to reduce the carrying values of assets which were classified as held for sale, to their estimated fair values, based on expected sales prices which are classified as Level 3 inputs as defined by ASC Topic 820, Fair Value Measurements and Disclosures.

Impairments — In accordance with ASC Topic 360, Property, Plant and Equipment, we monitor all indicators of potential impairments. We evaluate for potential impairment of long-lived assets when indicators of impairment are present, which may include, among other things, significant adverse changes in industry trends (including revenue rates, utilization rates, oil and natural gas market prices, and industry rig counts). In performing an impairment evaluation, we estimate the future undiscounted net cash flows from the use and eventual disposition of the assets grouped at the lowest level that independent cash flows can be identified. We perform an impairment evaluation and estimate future undiscounted cash flows for each of our asset groups separately, which are our domestic drilling services, international drilling services, well servicing, wireline services and coiled tubing services segments. If the sum of the estimated future undiscounted net cash flows is less than the carrying amount of the asset group, then we determine the fair value of the asset group, and the amount of an impairment charge would be measured as the difference between the carrying amount and the fair value of the assets.

Due to the significant decline in industry conditions, commodity prices, and projected utilization of equipment, as well as the COVID-19 pandemic’s impact on our industry, our projected cash flows declined during the first quarter of 2020, and we performed recoverability testing on all our reporting units. As a result of this analysis, we incurred impairment charges of $16.4 million to reduce the carrying values of our coiled tubing assets to their estimated fair values. For all our other reporting units, excluding coiled tubing, we determined that the sum of the estimated future undiscounted net cash flows were in excess of the carrying amounts and that no impairment existed for these reporting units at March 31, 2020.

The assumptions we use in the evaluation for impairment are inherently uncertain and require management judgment. Although we believe the assumptions and estimates used in our impairment analysis are reasonable, different assumptions and estimates could materially impact the analysis and resulting conclusions. The most significant inputs used in our impairment analysis include the projected utilization and pricing of our services, as well as the estimated proceeds upon any future sale or disposal of the assets, all of which are classified as Level 3 inputs as defined by ASC Topic 820, Fair Value Measurements and Disclosures. If commodity prices decrease or remain at current levels for an extended period of time, or if the demand for any of our services decreases below what we are currently projecting, our estimated cash flows may decrease and our estimates of the fair value of certain assets may decrease as well. If any of the foregoing were to occur, we could incur impairment charges on the related assets.