NON-U.S. EMPLOYEE DEFINED BENEFIT PLANS - Changes in Benefit Obligations and Fair Value of Plan (Details) $ in Thousands	2 Months Ended
Dec. 31, 2017 USD ($)
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Beginning balance	$ 10,515
Service cost	68
Interest cost	25
Participant contributions	5
Benefits paid	(3)
Net actuarial loss on obligation	562
Currency loss	312
Ending balance	11,484
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value beginning balance	3,776
Actual return on plan assets	(8)
Employer contributions	22
Participant contributions	5
Additional charges	(4)
Benefits paid	(3)
Currency gain	105
Fair value ending balance	3,893
Funded status at December 31, 2017	(7,591)
Net actuarial loss	578
Liability, Defined Benefit Plan [Abstract]
Accrued compensation and benefits (current pension liability)	(67)
Other long-term liabilities (non-current pension liability)	(7,524)
Net amount recognized	$ (7,591)

Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses.

Name:	us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan.