Statement of Consolidated Unitholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Drop-Down Acquisition	General Partner	Non-Controlling Interest	Non-Controlling Interest Drop-Down Acquisition	Common Units	Common Units Limited Partners	Class B Units Limited Partners	Class B Units Limited Partners Drop-Down Acquisition
Beginning balance (in shares) at Dec. 31, 2018							51,654	72,419
Beginning balance at Dec. 31, 2018	$ 1,237,042		$ 1,000	$ 694,940			$ 540,112	$ 990
Increase (Decrease) in Partners' Capital
Net proceeds from the issuance of common units - public (in shares)							10,925
Net proceeds from the issuance of common units - public	340,860						$ 340,860
Common units issued for acquisition (in shares)							5,152		18,291
Common units issued for acquisition	124,012	$ 497,412			$ 497,162		$ 124,012		$ 250
Offering costs	(221)						(221)
Unit-based compensation	1,822						$ 1,822
Issuance of common units, net (in shares)							75
Distributions to public	(107,074)						$ (107,074)
Distributions to Diamondback	(133,211)			(131,801)			(1,300)	$ (110)
Distributions to General Partner	(80)		(111)				31
Change in ownership of consolidated subsidiaries, net	4,001			19,055			(15,054)
Cash paid for tax withholding on vested common units	(353)						(353)
Net income (loss)	221,210			174,929			$ 46,281
Ending balance (in shares) at Dec. 31, 2019							67,806	90,710
Ending balance at Dec. 31, 2019	2,185,420		889	1,254,285			$ 929,116	$ 1,130
Increase (Decrease) in Partners' Capital
Unit-based compensation	1,272						$ 1,272
Issuance of common units, net (in shares)							56
Distributions to public	(45,630)						$ (45,630)
Distributions to Diamondback	(62,282)			(61,685)			(498)	$ (99)
Distributions to General Partner	(80)		(80)
Change in ownership of consolidated subsidiaries, net				34,087			(34,087)
Distribution equivalent rights payments	(44)						(44)
Cash paid for tax withholding on vested common units	(384)						$ (384)
Repurchased units as part of unit buyback (in shares)							(2,045)
Repurchased units as part of unit buyback	(24,026)						$ (24,026)
Net income (loss)	(193,413)			(1,109)			$ (192,304)
Ending balance (in shares) at Dec. 31, 2020							65,817	90,710
Ending balance at Dec. 31, 2020	1,860,833		809	1,225,578			$ 633,415	$ 1,031
Increase (Decrease) in Partners' Capital
Common units issued for acquisition (in shares)							15,250
Common units issued for acquisition	336,872						$ 336,872
Unit-based compensation	1,172						$ 1,172
Issuance of common units, net (in shares)							92
Distributions to public	(75,749)						$ (75,749)
Distributions to Diamondback	(100,685)			(99,782)			(803)	$ (100)
Distributions to General Partner	(80)		(80)
Change in ownership of consolidated subsidiaries, net				93,473			(93,473)
Distribution equivalent rights payments	(193)						(193)
Cash paid for tax withholding on vested common units	(20)						(20)
Repurchased units as part of unit buyback (in shares)						(2,613)
Repurchased units as part of unit buyback	(45,999)					$ (45,999)
Net income (loss)	256,677			198,738			$ 57,939
Ending balance (in shares) at Dec. 31, 2021							78,546	90,710
Ending balance at Dec. 31, 2021	$ 2,232,828		$ 729	$ 1,418,007			$ 813,161	$ 931