Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Property, plant, and equipment:
Property, plant, and equipment - gross	$ 2,877,988	$ 2,810,623
Accumulated depreciation and depletion	(1,090,336)	(1,010,903)
Property, plant, and equipment – net	1,787,652	1,799,720
Capitalized leases
Capitalized leases – gross	64,215	76,216
Accumulated depreciation	(25,118)	(41,051)
Capitalized leases – net	39,097	35,165
Cash and cash equivalents	226,807	48,873
Restricted cash	38,448	21,090
Accounts receivable – net of allowance of $5,725 and $5,309 at September 30, 2018 and December 31, 2017, respectively	209,268	200,006
Identifiable intangible assets – net	25,444	26,645
Goodwill	186,383	188,169
Investments in partially owned entities	15,952	15,942
Other assets	51,180	59,287
Total assets	2,580,231	2,394,897
Liabilities
Borrowings under revolving line of credit	0	0
Accounts payable and accrued expenses	249,715	241,259
Construction loan - net of deferred financing costs of $179 at December 31, 2017	0	19,492
Mortgage notes and term loans - net of unamortized discount and deferred financing costs of $13,571 and $31,997, in the aggregate, at September 30, 2018 and December 31, 2017, respectively	1,376,998	1,721,958
Sale-leaseback financing obligations	119,640	121,516
Capitalized lease obligations	41,231	38,124
Unearned revenue	19,471	18,848
Pension and postretirement benefits	14,297	16,756
Deferred tax liability - net	18,889	21,940
Multi-Employer pension plan withdrawal liability	8,987	9,134
Total liabilities	1,849,228	2,209,027
Commitments and contingencies (Note 13)
Preferred shares of beneficial interest, $0.01 par value – authorized 375,000 Series B Cumulative Convertible Voting and Participating Preferred Shares; aggregate liquidation preference of $375,000; zero and 375,000 shares issued and outstanding at September 30, 2018 and December 31, 2017, respectively	0	372,794
Shareholders’ equity (deficit):
Preferred shares of beneficial interest, $0.01 par value – authorized 1,000 Series A Cumulative Non-Voting Preferred Shares; aggregate liquidation preference of $125; zero and 125 shares issued and outstanding at September 30, 2018 and December 31, 2017, respectively	0	0
Common shares of beneficial interest, $0.01 par value – authorized 250,000,000 shares; 147,861,840 and 69,370,609 shares issued and outstanding at September 30, 2018 and December 31, 2017, respectively	1,479	694
Paid-in capital	1,349,761	394,082
Accumulated deficit and distributions in excess of net earnings	(612,795)	(581,470)
Accumulated other comprehensive loss	(7,442)	(230)
Total shareholders’ equity (deficit)	731,003	(186,924)
Total liabilities, Series B Preferred Shares and shareholders’ equity	2,580,231	2,394,897
Land
Property, plant, and equipment:
Property, plant, and equipment - gross	384,971	389,443
Buildings and improvements
Property, plant, and equipment:
Property, plant, and equipment - gross	1,838,086	1,819,635
Capitalized leases
Capitalized leases – gross	16,827	16,827
Machinery and equipment
Property, plant, and equipment:
Property, plant, and equipment - gross	579,325	552,677
Capitalized leases
Capitalized leases – gross	47,388	59,389
Assets under construction
Property, plant, and equipment:
Property, plant, and equipment - gross	$ 75,606	$ 48,868