Note 15 - Partners' Capital (Predecessors) (Details Textual) - HPK, LP [Member] - USD ($) $ in Millions	6 Months Ended	8 Months Ended
Jun. 30, 2020	Aug. 21, 2020
Net Income (Loss) Allocated to Limited Partners	$ 85.0	$ 85.0
Limited Partners' Capital Account, Distribution Amount		$ 2.8

The total amount of distributions to limited partners.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 5
-Subparagraph (SAB TOPIC 4.F)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187171-122770

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration