Condensed Consolidated and Combined Statement of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
REVENUES
Mineral and royalty revenues	$ 23,049	$ 14,522	$ 40,639	$ 26,386
Lease bonus and other revenues	1,480	2,367	2,155	4,586
Total revenues	24,529	16,889	42,794	30,972
OPERATING EXPENSES
Gathering, transportation and marketing	1,523	912	2,637	2,007
Severance and ad valorem taxes	1,450	882	2,829	1,642
Depreciation, depletion and amortization	6,760	3,213	11,876	5,758
General and administrative	9,762	1,318	11,711	2,782
Total operating expenses	19,495	6,325	29,053	12,189
Income from operations	5,034	10,564	13,741	18,783
Gain (loss) on derivative instruments, net	73	(555)	(612)	(914)
Interest expense, net	(1,270)	(652)	(5,095)	(1,126)
Loss on extinguishment of debt	(6,933)	0	(6,933)	0
Gain on sale and distribution of equity securities	0	0	0	823
Other income, net	6	6	35	10
(Loss) income before income taxes	(3,090)	9,363	1,136	17,576
Income tax expense	117	12	307	28
NET (LOSS) INCOME	(3,207)	9,351	829	17,548
Less: net loss attributable to temporary equity	2,941	0	2,941	0
Net loss attributable to Brigham Minerals, Inc. shareholders	$ (1,856)	$ 0	$ (1,322)	$ 0
Earnings Per Share, Basic and Diluted [Abstract]
Basic (in dollars per share)	$ (0.12)	$ 0.00	$ (0.24)	$ 0.00
Diluted (in dollars per share)	$ (0.123)	$ 0.00	$ (0.246)	$ 0.00
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING
Basic (in shares)	17,819	0	8,959	0
Diluted (in shares)	41,460	0	20,806	0
Predecessor
OPERATING EXPENSES
NET (LOSS) INCOME	$ (1,590)	$ (9,351)	$ (5,092)	$ (17,548)