Rose Rock Midstream, L.P. (Details 4) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Summarized Income Statement Information
Revenue	$ 547,237	$ 594,235	$ 482,224	$ 498,883	$ 457,328	$ 357,748	$ 324,244	$ 287,696	$ 2,122,579	$ 1,427,016	$ 1,237,497
Costs of products sold									1,623,358	1,020,100	874,885
Depreciation and amortization expense									98,397	66,409	48,210
Earnings from equity method investments	15,827	14,223	19,187	14,962	12,788	7,483	14,861	17,345	64,199	52,477	36,036
Net income (loss)	12,707	32,196	(12,584)	19,738	6,599	3,135	7,512	48,566	52,057	65,812	31,897
Less: net income attributable to noncontrolling interests	4,633	6,934	5,025	6,150	3,319	5,054	3,943	5,143	22,817	17,710	9,797
Net Income (Loss) Attributable to Parent	8,074	25,262	(17,609)	13,588	3,280	(1,919)	3,569	43,423	29,240	48,102	22,100
Rose Rock Midstream L P [Member]
Summarized Income Statement Information
Revenue									1,290,644	766,526	620,417
Costs of products sold									1,131,362	663,759	546,966
Operating, general and administrative expenses									97,575	51,082	35,385
Depreciation and amortization expense									36,072	23,165	12,131
Earnings from equity method investments									57,378	17,571	0
Net income (loss)									62,577	38,005	23,954
Less: net income attributable to noncontrolling interests									7,758	1,256	0
Net Income (Loss) Attributable to Parent									$ 54,819	$ 36,749	$ 23,954