PROPERTY, BUILDINGS AND EQUIPMENT - SCHEDULE OF PROPERTY, BUILDINGS AND EQUIPMENT (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Accumulated depreciation and amortization	$ (365,345)	$ (312,106)	[1]
Property, buildings and equipment, net	379,012	399,157	[1]
Hosting Arrangement, Service Contract, Implementation Cost, Capitalized, before Accumulated Amortization	39,600	2,000
Hosting Arrangement, Service Contract, Implementation Cost, Capitalized, after Accumulated Amortization	8,800	1,100
Disposal Group, Property, Plant and Equipment	263	300
Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, buildings and equipment, gross	165,691	169,873	[1]
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, buildings and equipment, gross	281,864	272,704	[1]
Software and Software Development Costs [Member]
Property, Plant and Equipment [Line Items]
Property, buildings and equipment, gross	250,447	229,279	[1]
Depreciable [Member]
Property, Plant and Equipment [Line Items]
Property, buildings and equipment, gross	698,002	671,856	[1]
Property, buildings and equipment, net	332,657	359,750	[1]
Land
Property, Plant and Equipment [Line Items]
Property, buildings and equipment, gross	25,600	26,409	[1]
Construction in progress
Property, Plant and Equipment [Line Items]
Property, buildings and equipment, gross	$ 20,755	$ 12,998	[1]

[1] The components of property, buildings and equipment as of December 31, 2020 exclude a total of $0.3 million that is classified as held for sale, as disclosed in Note 7, "Assets and Liabilities Held For Sale".(2)    The furniture, fixtures and equipment, and software costs components of property, buildings and equipment as of December 31, 2020 reflect a $6.4 million reclassification between the previously reported amounts of those components to conform to the current period's presentation.