SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND PRACTICES - Additional Information (Details)	3 Months Ended
	Jun. 30, 2020	Mar. 31, 2020 employee country segment Location customer
Accounting Policies [Abstract]
Number of operating segments | segment		3
Number of locations in which company operates (more than) | Location		200
Number of countries in which the company operates | country		20
Number of employees | employee		6,100
Sales Revenue, Net | Customer Concentration Risk
Significant Accounting Policies [Line Items]
Number of customers accounted for more than specified percentage of consolidated revenues | customer		0
Executive Officer | Subsequent Event | Minimum
Significant Accounting Policies [Line Items]
Temporary salary reduction (percent)	0.15
Executive Officer | Subsequent Event | Maximum
Significant Accounting Policies [Line Items]
Temporary salary reduction (percent)	0.20
Board Of Directors | Subsequent Event
Significant Accounting Policies [Line Items]
Related party, increase (decrease) in cash retainer	(0.20)