OTHER INFORMATION - Schedule of Restricted Cash (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Other Income and Expenses [Abstract]
Cash and cash equivalents	$ 371,769	$ 398,858
Cash and cash equivalents included in Assets held for sale	30,869	0
Restricted cash included in:
Other current assets	3,981	4,116
Assets held for sale	1,106	0
Other assets	10,694	14,101
Total cash, cash equivalents and restricted cash in the Statement of Cash Flows	$ 418,419	$ 417,075	$ 188,539	$ 202,869