Business Combinations - Acquisition of Agro (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 30, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Assets
Goodwill	$ 794,335		$ 318,483	$ 186,095	$ 188,169
Agro Merchants Group
Assets
Land		$ 95,286
Buildings and improvements		778,170
Machinery and equipment		206,453
Operating lease right-of-use assets		191,229
Financing lease asset		46,845
Cash and cash equivalents		47,534
Accounts receivable		78,423
Goodwill	346,700	346,673
Acquired identifiable intangibles:
Investments in partially owned entities		21,638
Other assets		20,038
Total assets		2,165,790
Liabilities
Accounts payable and accrued expenses		90,860
Operating lease obligations		191,229
Financing lease obligations		46,845
Sale-leaseback obligations		73,075
Deferred tax liability		175,719
Total liabilities		577,728
Total consideration, including common shares issued and deferred consideration		1,588,062
Customer relationships | Agro Merchants Group
Acquired identifiable intangibles:
Acquired identifiable intangibles	$ 333,500	$ 333,501