CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities
Net income	$ 35,178	$ 102,403	$ 57,117
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	108,192	106,838	105,652
Amortization of deferred financing fees	5,038	5,372	5,644
Amortization of leasehold interests, ASC 842	0
Amortization of leasehold interests, ASC840		327	631
Amortization of senior notes discount	902	1,501	1,445
Bad debt expense	560	588	211
Unit-based compensation expense	1,966	2,738	2,755
Write-off of financing fees	188		573
Loss on trustee taxes		(52,627)	16,194
Net (gain) loss on sale and disposition of assets	(2,730)	5,880	(1,624)
Goodwill and long-lived asset impairment	2,022	414	809
Loss on early extinguishment of debt	13,080
Deferred income taxes	23	2,751	(25,949)
Changes in operating assets and liabilities, excluding net assets acquired:
Accounts receivable	(78,978)	81,898	3,886
Accounts receivable - affiliate	(2,388)	(1,662)	(630)
Inventories	(64,790)	(29,778)	173,167
Broker margin deposits	(19,700)	(5,085)	17,972
Prepaid expenses, all other current assets and other assets	14,413	(15,912)	(13,674)
Accounts payable	64,407	(4,433)	(6,850)
Trustee taxes payable	319	(15,081)	9,155
Change in derivatives	30,030	(31,764)	2,346
Accrued expenses, all other current liabilities and other long-term liabilities	(13,330)	14,488	15,806
Net cash provided by operating activities	94,402	168,856	348,442
Cash flows from investing activities
Acquisitions		(171,620)	(38,479)
Capital expenditures	(82,864)	(69,174)	(49,866)
Seller note issuances	(1,410)	(3,337)	(6,086)
Proceeds from sale of property and equipment	17,060	18,411	32,787
Net cash used in investing activities	(67,214)	(225,720)	(61,644)
Cash flows from financing activities
Net proceeds from issuance of Series A preferred units		66,366
Proceeds from senior notes, net	392,602
Repayment of senior notes	(381,886)
LTIP units withheld for tax obligations	(657)	(835)	(522)
Repayment of senior notes	(381,886)
Noncontrolling interest capital contribution			279
Distribution to noncontrolling interest			(465)
Distributions to partners	(76,626)	(66,004)	(62,660)
Net cash (used in) provided by financing activities	(23,267)	50,127	(281,968)
Cash and cash equivalents
Increase (decrease) in cash and cash equivalents	3,921	(6,737)	4,830
Cash and cash equivalents at beginning of period	8,121	14,858	10,028
Cash and cash equivalents at end of period	12,042	8,121	14,858
Supplemental information
Cash paid during the period for interest	67,436	67,163	62,512
Net cash (received) paid during the period for income taxes	(5,208)	653	7,356
Revolving Credit Facility [Member]
Cash flows from financing activities
Net (payments on) borrowings from credit facility	(27,300)	24,000	(20,700)
Working Capital Facility [Member]
Cash flows from financing activities
Net (payments on) borrowings from credit facility	$ 70,600	$ 26,600	$ (197,900)