SEGMENT AND GEOGRAPHICAL INFORMATION - Schedule of Geographical Operating Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 859,154	$ 711,556	$ 816,138
Operating Income	74,388	107,027	170,068
Identifiable Assets	3,728,733	2,860,996
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	567,998	354,395	390,396
Operating Income	44,877	58,945	83,357
Identifiable Assets	3,104,916	2,288,642
New Zealand
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	291,156	357,161	425,742
Operating Income	29,511	48,082	$ 86,711
Identifiable Assets	$ 623,817	$ 572,354