Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

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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.

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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
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Balance Type:	credit
Period Type:	instant

- 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

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

+ Details

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Balance Type:	credit
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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

+ Details

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(3)
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+ Details

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- Definition

The fixed charge coverage ratio to be maintained under the debt instrument agreement based on the ratio of EBITDA minus Unfinanced Capital Expenditures to Fixed Charges.

+ References

No definition available.

+ 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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Long-term Debt - Credit agreement (Details) - USD ($) $ in Millions			9 Months Ended	12 Months Ended
	Aug. 21, 2018	Feb. 12, 2018	Sep. 30, 2019	Dec. 31, 2018	Feb. 28, 2018
Long-term Debt
Long-term debt outstanding			$ 0.0	$ 0.0
Variable reference rate		one-year LIBOR
One-month LIBOR
Long-term Debt
Applicable margin rate (as a percent)			1.50%	1.50%
Variable reference rate			one-month LIBOR	one-month LIBOR
Three-month LIBOR
Long-term Debt
Applicable margin rate (as a percent)			1.50%	1.50%
Variable reference rate			three-month LIBOR	three-month LIBOR
Prior Credit Agreement
Long-term Debt
Amount outstanding					$ 0.0
Letters of credit outstanding					$ 0.0
ABL Credit Facility
Long-term Debt
Long-term debt outstanding			$ 0.0	$ 0.0
Revolving credit facility available per borrowing base terms			$ 75.0
Cactus LLC \| ABL Credit Facility
Long-term Debt
Debt term	5 years
Maximum borrowing capacity	$ 75.0
Additional revolving commitment that may be requested subject to certain terms and conditions	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 \| Alternate 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 \| Alternate 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%
Cactus LLC \| Letters of credit
Long-term Debt
Maximum borrowing capacity	$ 15.0