PENSION PLANS AND OTHER POST RETIREMENT BENEFITS - Additional Information (Details) - Pension Plan	12 Months Ended
	Jun. 30, 2020 USD ($)
CDT defined benefit plan
Assumptions:
Contributions made by employer to plan	$ 0
Amount to be amortized from accumulated other comprehensive income (loss) over the next fiscal year	700,000
GXS GER defined benefit plan
Assumptions:
Contributions made by employer to plan	0
Amount to be amortized from accumulated other comprehensive income (loss) over the next fiscal year	100,000
GXS PHP defined benefit plan
Assumptions:
Contributions made by employer to plan	0
Fair value of plan assets	$ 40,000.00