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Acquisitions and Dispositions Acquisitions and Dispositions (Details) - USD ($) $ in Millions			1 Months Ended	12 Months Ended
	Dec. 06, 2018	Feb. 28, 2018	Feb. 28, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Mar. 02, 2018	Feb. 27, 2018
Business Acquisition [Line Items]
Total number of new units issued				0	0	7,772,021
Offshore Division [Member]
Business Acquisition [Line Items]
Disposal Group, Including Discontinued Operation, Consideration							$ 3.1
Maximum borrowing capacity							46.8
Offshore Division [Member] \| Promissory Note
Business Acquisition [Line Items]
Notes Receivable, Related Parties							$ 7.5
Stated interest rate							1.52%
SwiftWater Energy Services
Business Acquisition [Line Items]
Purchase price			$ 42.0
Total number of new units issued		7,772,021
Contingent consideration					$ 10.0
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned								$ 28.2
JRGO Energy Services LLC
Business Acquisition [Line Items]
Purchase price	$ 7.6
Contingent consideration, maximum	$ 1.4