Reportable Segments (EBITDA) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Reconciliation of total Adjusted EBITDA from reportable segments to net income (loss) from continuing operations
Total Adjusted EBITDA from reportable segments	$ 17,333	$ 13,893	$ 37,294	$ 33,622
Other expenses not allocated to reportable segments	(2,452)	(6,120)	(7,860)	(13,310)
Depreciation and amortization	(11,629)	(11,518)	(23,165)	(22,281)
Interest expense	(2,103)	(1,382)	(4,533)	(2,497)
Income tax expense	(160)	(229)	(576)	(251)
Loss on disposal of assets, net	(558)	(1,272)	(1,690)	(1,385)
Unit-based compensation	(383)	(97)	(942)	(503)
Total gain (loss) on commodity derivatives	(601)	(1,254)	(736)	(1,119)
Net cash payments for commodity derivatives settled during the period	144	2,835	532	6,027
Non-cash inventory costing adjustment	973		1,126
Corporate overhead support from general partner	(3,500)		(5,000)
Transaction costs and other	571	(335)	496	(2,710)
LOSS FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	$ (2,205)	$ (5,250)	$ (4,478)	$ (4,156)