Revenue Recognition Revenue by Commodity and Location (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenue from Contract with Customer, Excluding Assessed Tax	$ 305,225	$ 189,692
Revenue year over year percentage change [Line Items]	60.90%
Utica Shale [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 4,645	7,619
Revenue year over year percentage change [Line Items]	(39.00%)
Delaware Basin [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 71,732	18,953
Revenue year over year percentage change [Line Items]	278.50%
Wattenberg Field
Revenue from Contract with Customer, Excluding Assessed Tax	$ 228,848	163,120
Revenue year over year percentage change [Line Items]	40.30%
NGL [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 40,244	29,754
Revenue year over year percentage change [Line Items]	35.30%
NGL [Member] | Wattenberg Field
Revenue from Contract with Customer, Excluding Assessed Tax	$ 28,770	25,318
Revenue year over year percentage change [Line Items]	13.60%
NGL [Member] | Delaware Basin [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 10,635	2,947
Revenue year over year percentage change [Line Items]	260.90%
NGL [Member] | Utica Shale [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 839	1,489
Revenue year over year percentage change [Line Items]	(43.70%)
Natural Gas [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 38,561	36,942
Revenue year over year percentage change [Line Items]	4.40%
Natural Gas [Member] | Wattenberg Field
Revenue from Contract with Customer, Excluding Assessed Tax	$ 29,772	32,614
Revenue year over year percentage change [Line Items]	(8.70%)
Natural Gas [Member] | Delaware Basin [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 7,679	2,468
Revenue year over year percentage change [Line Items]	211.10%
Natural Gas [Member] | Utica Shale [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 1,110	1,860
Revenue year over year percentage change [Line Items]	(40.30%)
Crude Oil [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 226,420	122,996
Revenue year over year percentage change [Line Items]	84.10%
Crude Oil [Member] | Wattenberg Field
Revenue from Contract with Customer, Excluding Assessed Tax	$ 170,306	105,188
Revenue year over year percentage change [Line Items]	61.90%
Crude Oil [Member] | Delaware Basin [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 53,418	13,538
Revenue year over year percentage change [Line Items]	294.60%
Crude Oil [Member] | Utica Shale [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 2,696	$ 4,270
Revenue year over year percentage change [Line Items]	(36.90%)