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Organization and Nature of Operations (Details) - $ / shares shares in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Cactus LLC |  |
Organization and Nature of Operations |  |
Ownership percentage | 62.80% | 50.30%
Class A Common Stock |  |
Organization and Nature of Operations |  |
Common stock, par value | $ 0.01 | $ 0.01
Common stock, shares outstanding | 47,159 | 37,654
Voting power of shares outstanding as a percent of the total shares outstanding | 62.80% |
Class B Common Stock |  |
Organization and Nature of Operations |  |
Common stock, par value | $ 0.01 | $ 0.01
Common stock, shares outstanding | 27,958 | 37,236
Voting power of shares outstanding as a percent of the total shares outstanding | 37.20% |

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