Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Assets
Cash	$ 14.3	$ 14.0
Accounts receivable, less allowance for doubtful accounts of $1.4 million and $0.9 million at September 30, 2021 and December 31, 2020	420.0	262.2
Inventory	175.0	89.1
Assets from price risk management activities	39.1	27.2
Prepaid expenses and other current assets	7.1	13.4
Total current assets	655.5	405.9
Property, plant and equipment	3,788.5	3,759.6
Less: accumulated depreciation	962.7	842.5
Property, plant and equipment, net	2,825.8	2,917.1
Intangible assets	1,126.1	1,126.1
Less: accumulated amortization	377.9	331.8
Intangible assets, net	748.2	794.3
Goodwill	138.6	138.6
Operating lease right-of-use assets, net	31.1	36.8
Investments in unconsolidated affiliates	168.0	943.7
Other non-current assets	7.3	7.3
Total assets	4,574.5	5,243.7
Current liabilities:
Accounts payable	358.7	160.3
Accrued expenses and other liabilities	140.5	122.0
Liabilities from price risk management activities	277.3	76.3
Contingent consideration, current portion	0.0	19.0
Current portion of long-term debt	0.2	0.2
Total current liabilities	776.7	377.8
Long-term debt, less current portion	2,024.9	2,483.8
Contingent consideration	0.0	38.0
Other long-term liabilities	259.8	253.3
Deferred income taxes	2.3	2.7
Total liabilities	3,063.7	3,155.6
Commitments and contingencies (Note 9)
Interest of non-controlling partner in subsidiary	434.5	432.7
Partners’ capital:
Crestwood Equity Partners LP partners’ capital (62,897,480 common units issued and outstanding at September 30, 2021 and 73,970,208 common and subordinated units issued and outstanding at December 31, 2020)	464.3	1,043.4
Preferred units (71,257,445 units issued and outstanding at both September 30, 2021 and December 31, 2020)	612.0	612.0
Total partners’ capital	1,076.3	1,655.4
Total liabilities and capital	$ 4,574.5	$ 5,243.7
Limited Partners' Capital Account, Units Issued	62,897,480	73,970,208
Limited Partners' Capital Account, Units Outstanding	62,897,480	73,970,208
Preferred Units, Issued	71,257,445	71,257,445
Preferred Units, Outstanding	71,257,445	71,257,445
Crestwood Midstream Partners LP
Assets
Cash	$ 13.9	$ 13.7
Accounts receivable, less allowance for doubtful accounts of $1.4 million and $0.9 million at September 30, 2021 and December 31, 2020	420.0	262.2
Inventory	175.0	89.1
Assets from price risk management activities	39.1	27.2
Prepaid expenses and other current assets	7.1	13.4
Total current assets	655.1	405.6
Property, plant and equipment	4,118.6	4,089.6
Less: accumulated depreciation	1,159.1	1,028.3
Property, plant and equipment, net	2,959.5	3,061.3
Intangible assets	1,126.1	1,126.1
Less: accumulated amortization	377.9	331.8
Intangible assets, net	748.2	794.3
Goodwill	138.6	138.6
Operating lease right-of-use assets, net	31.1	36.8
Investments in unconsolidated affiliates	168.0	943.7
Other non-current assets	5.1	5.2
Total assets	4,705.6	5,385.5
Current liabilities:
Accounts payable	358.6	157.8
Accrued expenses and other liabilities	139.3	120.1
Liabilities from price risk management activities	277.3	76.3
Contingent consideration, current portion	0.0	19.0
Current portion of long-term debt	0.2	0.2
Total current liabilities	775.4	373.4
Long-term debt, less current portion	2,024.9	2,483.8
Contingent consideration	0.0	38.0
Other long-term liabilities	256.6	251.8
Deferred income taxes	0.7	0.7
Total liabilities	3,057.6	3,147.7
Commitments and contingencies (Note 9)
Interest of non-controlling partner in subsidiary	434.5	432.7
Partners’ capital:
Partners' capital	1,213.5	1,805.1
Total liabilities and capital	$ 4,705.6	$ 5,385.5