EMPLOYEE BENEFIT PLANS - Schedule of Fair Value of Plan Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	$ 63,650	$ 56,568	$ 94,164
UK Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	63,650	56,568
UK Pension Plan | Quoted Prices in Active Markets  for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	2,992	1,861
UK Pension Plan | Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	54,529	44,270
UK Pension Plan | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	6,129	10,437	$ 11,443
Cash | UK Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	2,992	1,861
Cash | UK Pension Plan | Quoted Prices in Active Markets  for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	2,992	1,861
Cash | UK Pension Plan | Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Cash | UK Pension Plan | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Diversified Growth Fund | UK Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	9,426	15,285
Diversified Growth Fund | UK Pension Plan | Quoted Prices in Active Markets  for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Diversified Growth Fund | UK Pension Plan | Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	3,297	4,848
Diversified Growth Fund | UK Pension Plan | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	6,129	10,437
Fixed Income Securities | UK Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	9,369	6,471
Fixed Income Securities | UK Pension Plan | Quoted Prices in Active Markets  for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fixed Income Securities | UK Pension Plan | Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	9,369	6,471
Fixed Income Securities | UK Pension Plan | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Government Index Linked Securities | UK Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	9,255	7,942
Government Index Linked Securities | UK Pension Plan | Quoted Prices in Active Markets  for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Government Index Linked Securities | UK Pension Plan | Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	9,255	7,942
Government Index Linked Securities | UK Pension Plan | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Corporate Bonds | UK Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	32,608	25,009
Corporate Bonds | UK Pension Plan | Quoted Prices in Active Markets  for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Corporate Bonds | UK Pension Plan | Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	32,608	25,009
Corporate Bonds | UK Pension Plan | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	$ 0	$ 0