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Long-term Debt - Credit agreement (Details) - USD ($) $ in Millions |  |  | 9 Months Ended |  |
--- | --- | --- | --- | --- | ---
Aug. 21, 2018 | Feb. 12, 2018 | Sep. 30, 2018 | Dec. 31, 2017 | Jul. 31, 2014
Long-term Debt |  |  |  |  |
Applicable margin rate (as a percent) |  | 1.50% |  |  |
Eurodollar |  |  |  |  |
Long-term Debt |  |  |  |  |
Applicable margin rate (as a percent) |  |  | 1.50% |  |
Prior Credit Agreement |  |  |  |  |
Long-term Debt |  |  |  |  |
Amount outstanding |  |  |  | $ 248.5 | $ 0.0
Weighted average interest rate |  |  |  | 7.30% |
Prior Revolving Credit Facility |  |  |  |  |
Long-term Debt |  |  |  |  |
Amount outstanding |  |  | $ 0.0 |  |
Revolving Loans | Prior Revolving Credit Facility |  |  |  |  |
Long-term Debt |  |  |  |  |
Maximum borrowing capacity |  |  |  |  | 50.0
Letters of credit |  |  |  |  |
Long-term Debt |  |  |  |  |
Letters of credit outstanding |  |  | 0.0 |  |
Letters of credit | Prior Revolving Credit Facility |  |  |  |  |
Long-term Debt |  |  |  |  |
Maximum borrowing capacity |  |  |  |  | 10.0
ABL Credit Facility |  |  |  |  |
Long-term Debt |  |  |  |  |
Amount outstanding |  |  | $ 0.0 |  |
Cactus LLC | Prior Credit Agreement |  |  |  |  |
Long-term Debt |  |  |  |  |
Face amount |  |  |  |  | $ 275.0
Cactus LLC | Letters of credit |  |  |  |  |
Long-term Debt |  |  |  |  |
Maximum borrowing capacity | $ 15.0 |  |  |  |
Cactus LLC | ABL Credit Facility |  |  |  |  |
Long-term Debt |  |  |  |  |
Debt term | 5 years |  |  |  |
Maximum borrowing capacity | $ 75.0 |  |  |  |
Amount not exceed for additional revolving commitments | 50.0 |  |  |  |
Total of revolving commitments | $ 125.0 |  |  |  |
Fixed charge coverage ratio |  |  | 1.0 |  |
Cactus LLC | ABL Credit Facility | Minimum |  |  |  |  |
Long-term Debt |  |  |  |  |
Commitment fee (as a percent) |  |  | 0.25% |  |
Cactus LLC | ABL Credit Facility | Minimum | Base Rate |  |  |  |  |
Long-term Debt |  |  |  |  |
Applicable margin rate (as a percent) |  |  | 0.50% |  |
Cactus LLC | ABL Credit Facility | Minimum | Eurodollar |  |  |  |  |
Long-term Debt |  |  |  |  |
Applicable margin rate (as a percent) |  |  | 1.50% |  |
Cactus LLC | ABL Credit Facility | Maximum |  |  |  |  |
Long-term Debt |  |  |  |  |
Commitment fee (as a percent) |  |  | 0.375% |  |
Cactus LLC | ABL Credit Facility | Maximum | Base Rate |  |  |  |  |
Long-term Debt |  |  |  |  |
Applicable margin rate (as a percent) |  |  | 1.00% |  |
Cactus LLC | ABL Credit Facility | Maximum | Eurodollar |  |  |  |  |
Long-term Debt |  |  |  |  |
Applicable margin rate (as a percent) |  |  | 2.00% |  |

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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used. + References No definition available. + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The contingent increase above the maximum borrowing capacity under the credit facility, if any one or more of the existing banks or new banks agree to provide such increased commitment amount. + References No definition available. + Details
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- Definition The aggregate borrowing capacity under the credit facility, consisting of the maximum borrowing capacity plus the contingent increase, if any one or more of the existing banks or new banks agree to provide such increased commitment amount. + References No definition available. + Details
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