SEGMENT REPORTING - Geographic Information (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 9,704,073	$ 11,345,463
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	8,682,657	10,106,520
Foreign
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	1,021,416	1,238,943
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	622,111	737,037
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	337,310	439,772
Mexico
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 61,995	$ 62,134