RESTRUCTURING CHARGES - Additional Information (Details) $ in Millions	1 Months Ended	9 Months Ended
	Dec. 31, 2016 job_position	Sep. 30, 2017 USD ($)
Restructuring Cost and Reserve [Line Items]
Payments for restructuring		$ 32.3
EA Integration Restructuring Program
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated | job_position	350
Payments for restructuring		30.5
EA Integration Restructuring Program | Minimum
Restructuring Cost and Reserve [Line Items]
Expected restructuring and related charges		65.0
Effect on future cash flows		65.0
EA Integration Restructuring Program | Maximum
Restructuring Cost and Reserve [Line Items]
Expected restructuring and related charges		75.0
Effect on future cash flows		75.0
EA Integration Restructuring Program | Employee-related costs
Restructuring Cost and Reserve [Line Items]
Payments for restructuring		27.5
EA Integration Restructuring Program | Employee-related costs | Minimum
Restructuring Cost and Reserve [Line Items]
Expected restructuring and related charges		40.0
EA Integration Restructuring Program | Employee-related costs | Maximum
Restructuring Cost and Reserve [Line Items]
Expected restructuring and related charges		50.0
EA Integration Restructuring Program | Lease termination costs
Restructuring Cost and Reserve [Line Items]
Expected restructuring and related charges		15.0
EA Integration Restructuring Program | Other
Restructuring Cost and Reserve [Line Items]
Expected restructuring and related charges		10.0
Payments for restructuring		$ 3.0