Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Operating activities:
Net income	$ 68,547	$ 27,353
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, depletion and amortization	157,572	115,598
Amortization of deferred financing costs and pension withdrawal liability	3,945	4,504
Amortization of above/below market leases	115	114
Loss on debt extinguishment and modification	542	0
Foreign exchange loss	373	66
Loss from investments in partially owned entities	254	111
Gain from sale of partially owned entities	0	(4,297)
Share-based compensation expense (modification of restricted stock units)	0	3,044
Share-based compensation expense	13,340	9,195
Deferred income tax benefit	(4,353)	(12,221)
(Gain) loss from sale of real estate	(21,448)	34
Loss on other asset disposals	715	336
Impairment of long-lived assets	6,282	13,485
Provision for doubtful accounts receivable	5,523	1,483
Changes in operating assets and liabilities:
Accounts receivable	(1,196)	(493)
Accounts payable and accrued expenses	4,262	(22,060)
Other	(7,275)	15,669
Net cash provided by operating activities	227,198	151,921
Investing activities:
Return of investment in joint venture	0	2,000
Proceeds from sale of investments in partially owned entities	0	14,250
Investment in partially owned entities	(26,218)	0
Proceeds from sale of property, buildings and equipment	77,354	973
Proceeds from the settlement of net investment hedge	3,034	0
Business combinations, net of cash acquired	(398,737)	(1,319,929)
Acquisitions of property, buildings and equipment, net of cash acquired	(25,538)	(35,161)
Additions to property, buildings and equipment	(241,614)	(151,065)
Net cash used in investing activities	(611,719)	(1,488,932)
Financing activities:
Distributions paid on common shares	(124,025)	(96,811)
Proceeds from stock options exercised	6,748	10,204
Remittance of withholding taxes related to employee share-based transactions	(6,380)	(6,127)
Proceeds from revolving line of credit	186,753	100,000
Repayment on revolving line of credit	(177,075)	(100,000)
Repayment of sale-leaseback financing obligations	(2,736)	(2,292)
Repayment of financing lease obligations	(14,299)	(9,374)
Payment of debt issuance costs	(8,345)	(2,047)
Repayment of term loan, mortgage notes and notes payable	(55,028)	(8,735)
Proceeds from term loan	177,075	0
Proceeds from issuance of senior unsecured notes	0	350,000
Net proceeds from issuance of common shares	340,629	1,206,627
Net cash provided by financing activities	323,317	1,441,445
Net increase in cash, cash equivalents and restricted cash	(61,204)	104,434
Effect of foreign currency translation on cash, cash equivalents and restricted cash	1,945	(1,543)
Cash, cash equivalents and restricted cash:
Beginning of period	240,613	214,097
End of period	181,354	316,988
Supplemental disclosures of cash flows information:
Addition of fixed assets under financing lease obligations	41,184	26,122
Addition of fixed assets under operating lease obligations	11,887	8,308
Interest paid – net of amounts capitalized	79,156	56,859
Income taxes paid – net of refunds	556	3,091
Addition of property, buildings and equipment on accrual	38,079	32,337
Reconciliation of cash, cash equivalents and restricted cash reported in the condensed consolidated balance sheets to the ending cash, cash equivalents and restricted cash balances above:
Cash and cash equivalents			$ 173,913	$ 310,116
Restricted cash			7,441	6,872
Total cash, cash equivalents and restricted cash	181,354	316,988	181,354	316,988
Allocation of purchase price to business combinations:
Goodwill			399,301
Business Acquisitions
Allocation of purchase price to business combinations:
Land			43,812	65,414
Building and improvements			159,057	714,767
Machinery and equipment			52,606	154,272
Assets under construction			308	19,977
Operating and financing lease right-of-use assets			4,161	1,336
Cash and cash equivalents			2,214	4,978
Restricted cash			0	526
Accounts receivable			6,674	22,873
Goodwill			81,202	125,550
Acquired identifiable intangibles:
Other assets			120	7,017
Accounts payable and accrued expenses			(3,428)	(41,475)
Notes payable			0	(3,878)
Operating and financing lease obligations			(4,027)	(1,336)
Unearned revenue			(1,068)	(3,536)
Pension and postretirement benefits			0	(859)
Deferred tax liability			(33,031)	(9,138)
Total consideration			400,951	1,325,433
Business Acquisitions | Customer relationships
Acquired identifiable intangibles:
Identifiable intangibles			92,351	267,319
Business Acquisitions | Trade names and trademarks
Acquired identifiable intangibles:
Identifiable intangibles			$ 0	$ 1,626
Asset Acquisitions
Allocation of purchase price of property, buildings and equipment to:
Identifiable intangible assets	140	351
Other assets	303	601
Cash paid for acquisition of property, buildings and equipment	25,638	35,923
Asset Acquisitions | Land
Allocation of purchase price of property, buildings and equipment to:
Property, plant and equipment	3,233	20,715
Asset Acquisitions | Buildings and improvements
Allocation of purchase price of property, buildings and equipment to:
Property, plant and equipment	15,940	10,846
Asset Acquisitions | Machinery and equipment
Allocation of purchase price of property, buildings and equipment to:
Property, plant and equipment	$ 6,022	$ 3,410