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- Definition

Distribution Made to General Partner, Cash Distributions Paid

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- Definition

Noncash Distribution to Parent

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- Definition

Partners' Capital Account, Non-Cash Contributions

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- Definition

Transaction Costs

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- Definition

Number of shares of equity interests issued or issuable to acquire entity.

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- Definition

Amount of cash distribution paid to unit-holder of limited partnership (LP).

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Date of record for distribution of cash or unit to limited partner of limited partnership (LP), in YYYY-MM-DD format.

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Date of distribution for distribution of cash or unit to limited partner of limited partnership (LP), in YYYY-MM-DD format.

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- Definition

Per unit of ownership amount of cash distributions declared to unit-holder of a limited partnership (LP).

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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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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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- Definition

Total contributions made by each class of partners (i.e., general, limited and preferred partners).

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- Definition

Cash outflow to owners or shareholders, excluding ordinary dividends. Includes special dividends.

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Amount of cash outflow in the form of ordinary dividends provided by the non-wholly owned subsidiary to noncontrolling interests.

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Amount of cash outflow in the form of ordinary dividends to preferred shareholders of the parent entity.

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Amount of noncash expense for share-based payment arrangement.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Number of shares issued under share-based payment arrangement.

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Number of shares that have been repurchased and retired during the period.

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Partners' Capital (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions									1 Months Ended		3 Months Ended
	May 13, 2022	May 06, 2022	Apr. 14, 2022	Feb. 14, 2022	Feb. 07, 2022	Feb. 01, 2022	Feb. 12, 2021	Feb. 05, 2021	Mar. 31, 2021	Feb. 28, 2021	Mar. 31, 2022	Mar. 31, 2021
Distribution Made to Limited Partner [Line Items]
Distribution Made to Limited Partner, Distribution Date				Feb. 14, 2022			Feb. 12, 2021
Distribution Made to Limited Partner, Date of Record					Feb. 07, 2022			Feb. 05, 2021
Distributions to preferred unitholders											$ 15.0	$ 15.0
Incentive Distribution, Distribution											60.9	46.4
Distributions to non-controlling partner											10.3	9.3
Distribution Made to Limited Partner, Cash Distributions Paid				$ 60.9			$ 46.4
Cash Paid to Repurchase Common Stock									$ 268.0
Noncash Distribution to Parent												2.6
Common Units
Distribution Made to Limited Partner [Line Items]
Stock exchanged (in shares)									11,500,000
Subordinated Units
Distribution Made to Limited Partner [Line Items]
Stock exchanged (in shares)									400,000
Crestwood Midstream Partners LP
Distribution Made to Limited Partner [Line Items]
Incentive Distribution, Distribution											238.1	334.0
Distributions to non-controlling partner											10.3	9.3
Distribution Made to General Partner, Cash Distributions Paid											238.1	334.0
Common unit
Distribution Made to Limited Partner [Line Items]
Transaction Costs									$ 7.6			$ 7.6
Partners' Capital \| Crestwood Midstream Partners LP
Distribution Made to Limited Partner [Line Items]
Non-cash contribution from partner (Note 11)						$ 1,075.1					1,075.1
Partners' Capital Account, Contributions											$ 14.9
Common Units
Distribution Made to Limited Partner [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period											526,322
Oasis Midstream Public Unitholders \| Oasis Midstream Partners LP
Distribution Made to Limited Partner [Line Items]
Issued shares (in shares)						12,900,000
Subsequent Event
Distribution Made to Limited Partner [Line Items]
Distribution Made to Limited Partner, Distribution Date	May 13, 2022
Distribution Made to Limited Partner, Date of Record		May 06, 2022
Distributions to preferred unitholders			$ 15.0
Cash Distribution \| Subsequent Event
Distribution Made to Limited Partner [Line Items]
Distribution Made to Limited Partner, Distributions Declared, Per Unit			$ 0.655
Crestwood LTIP
Distribution Made to Limited Partner [Line Items]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount											$ 4.6
Crestwood LTIP \| Performance Shares
Distribution Made to Limited Partner [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period										177,025	206,017
Share-based Payment Arrangement, Noncash Expense											$ 0.2
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period											3 years