Consolidated EBITDA to consolidated interest expense (as defined in the Credit Agreement)

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Consolidated Leverage Ratio Maximum.

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- Definition

Interest Coverage Ratio, Minimum

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- Definition

Senior Secured Leverage Ratio

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- Definition

Senior Secured Leverage Ratio, maximum

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- Definition

Total funded debt to consolidated EBITDA (as defined in the Credit Agreement)

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No definition available.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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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.

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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.

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No definition available.

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- Definition

Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

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- Definition

Weighted average interest rate of debt outstanding.

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No definition available.

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- Definition

Gross amount of debt extinguished.

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No definition available.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Amount of cash paid for interest, including, but not limited to, capitalized interest and payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount; classified as operating and investing activities.

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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No definition available.

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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.

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The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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Long-Term Debt (Narrative) (Details)	3 Months Ended		9 Months Ended
Long-Term Debt (Narrative) (Details)	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Jan. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Debt Instrument [Line Items]
Senior Secured Leverage Ratio, maximum	3.75		3.75
Senior Secured Leverage Ratio	0.42		0.42
Extinguishment of Debt, Amount			$ 687,200,000
Loss on modification/extinguishment of debt	$ 0	$ 0	6,700,000	$ 0
Interest paid			8,600,000
Crestwood Midstream Partners LP
Debt Instrument [Line Items]
Loss on modification/extinguishment of debt	0	$ 0	6,700,000	$ 0
2027 Senior Notes \| Crestwood Midstream Partners LP
Debt Instrument [Line Items]
Senior notes	594,000,000.0		594,000,000.0			$ 593,200,000
2025 Senior Notes \| Crestwood Midstream Partners LP
Debt Instrument [Line Items]
Senior notes	496,300,000		$ 496,300,000			495,500,000
Crestwood Midstream Revolver
Debt Instrument [Line Items]
Consolidated Leverage Ratio Maximum			5.50
Crestwood Midstream Revolver \| Revolving Credit Facility
Debt Instrument [Line Items]
Available capacity	985,300,000		$ 985,300,000
Letters of credit outstanding	$ 14,200,000		$ 14,200,000			$ 23,900,000
Debt, Weighted Average Interest Rate	2.41%		2.41%			2.45%
Interest Coverage Ratio Minimum			2.50
Total Funded Debt to Consolidated Ebitda			3.45
Consolidated Ebitda To Consolidated Interest Expense			4.98
Crestwood Midstream Revolver \| Revolving Credit Facility \| Minimum
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate	2.34%		2.34%			2.40%
Crestwood Midstream Revolver \| Revolving Credit Facility \| Maximum
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate	4.50%		4.50%			4.50%
2023 Senior Notes \| Crestwood Midstream Partners LP
Debt Instrument [Line Items]
Senior notes	$ 0		$ 0			$ 683,800,000
Senior Notes \| 2027 Senior Notes
Debt Instrument [Line Items]
Senior notes	600,000,000.0		600,000,000.0			600,000,000.0
Senior Notes \| 2025 Senior Notes
Debt Instrument [Line Items]
Senior notes	500,000,000.0		500,000,000.0			500,000,000.0
Senior Notes \| 2023 Senior Notes
Debt Instrument [Line Items]
Senior notes	0		0			$ 687,200,000
Senior Notes \| Senior Notes, due 2029
Debt Instrument [Line Items]
Senior notes					$ 700,000,000
Debt Instrument, Interest Rate, Stated Percentage					6.00%
Proceeds from Issuance of Debt			691,000,000
Revolving Loan Facility \| Crestwood Midstream Partners LP
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 1,250,000,000		$ 1,250,000,000
Debt Instrument, Term			5 years