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Revenue Recognition (Tables)
 3 Months Ended
Mar. 31, 2022
Revenue Recognition [Abstract]  
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]
The following table summarizes our contract assets and contract liabilities (in millions):

March 31, 2022December 31, 2021
Contract assets (non-current)
$1.2 $1.3 
Contract liabilities (current)(1)
$11.0 $10.7 
Contract liabilities (non-current)(1)
$202.1 $187.1 

(1)During the three months ended March 31, 2022, we recognized revenues of approximately $3.5 million that were previously included in contract liabilities at December 31, 2021. The remaining change in our contract liabilities during the three months ended March 31, 2022 related to capital reimbursements associated with our revenue contracts and revenue deferrals associated with our contracts with increasing (decreasing) rates.
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]
The following table summarizes the transaction price allocated to our remaining performance obligations under certain contracts that have not been recognized as of March 31, 2022 (in millions):
Remainder of 2022$65.8 
202365.1 
202444.4 
20252.6 
20260.5 
Thereafter1.3 
Total$179.7 
Disaggregation of Revenue The following tables summarize our revenues from contracts with customers disaggregated by type of product/service sold and by commodity type for each of our segments for the three months ended March 31, 2022 and 2021 (in millions). We believe this summary best depicts how the nature, amount, timing and uncertainty of our revenues and cash flows are affected by economic factors. Our non-Topic 606 revenues presented in the tables below primarily represents revenues related to our commodity-based derivatives.
Three Months Ended March 31, 2022
Gathering and Processing North
Gathering and Processing South
Storage and Logistics
Intersegment Elimination
Total
Topic 606 revenues
Gathering
Natural gas
$25.9 $22.4 $— $— $48.3 
Crude oil
14.8 1.0 — — 15.8 
Water
34.7 2.2 — — 36.9 
Processing
Natural gas
14.4 1.1 — — 15.5 
Compression
Natural gas
— 3.5 — — 3.5 
Storage
Crude oil
0.5 — — (0.1)0.4 
NGLs
— — 2.8 — 2.8 
Pipeline
Crude oil
— — 0.5 — 0.5 
Transportation
Crude oil
1.2 0.1 — — 1.3 
NGLs
— — 5.8 — 5.8 
Rail Loading
Crude oil
— — 0.4 — 0.4 
Product Sales
Natural gas
63.9 0.3 98.7 (52.1)110.8 
Crude oil
128.1 — 374.0 (11.2)490.9 
NGLs
76.9 — 632.7 (64.0)645.6 
Water
1.6 — — — 1.6 
Other
0.2 — 0.3 — 0.5 
Total Topic 606 revenues
362.2 30.6 1,115.2 (127.4)1,380.6 
Non-Topic 606 revenues
0.4 0.1 202.7 — 203.2 
Total revenues
$362.6 $30.7 $1,317.9 $(127.4)$1,583.8 
Three Months Ended March 31, 2021
Gathering and Processing North
Gathering and Processing South
Storage and Logistics
Intersegment Elimination
Total
Topic 606 revenues
Gathering
Natural gas
$13.2 $18.2 $— $— $31.4 
Crude oil
20.7 — — — 20.7 
Water
22.0 — — — 22.0 
Processing
Natural gas
5.8 1.2 — — 7.0 
Compression
Natural gas
— 4.7 — — 4.7 
Storage
Crude oil
0.1 — 0.2 (0.1)0.2 
NGLs
— — 3.7 — 3.7 
Pipeline
Crude oil
— — 0.8 — 0.8 
Transportation
Crude oil
0.7 — — — 0.7 
NGLs
— — 4.2 — 4.2 
Rail Loading
Crude oil
— — 1.0 — 1.0 
Product Sales
Natural gas
42.3 0.5 95.6 (42.2)96.2 
Crude oil
90.0 — 251.2 (22.7)318.5 
NGLs
40.3 — 406.0 (40.3)406.0 
Other
— — 0.2 — 0.2 
Total Topic 606 revenues
235.1 24.6 762.9 (105.3)917.3 
Non-Topic 606 revenues
— — 115.4 — 115.4 
Total revenues
$235.1 $24.6 $878.3 $(105.3)$1,032.7