SUBSEQUENT EVENT (Details) - Subsequent Event - IWCO Direct's Competitive Improvement Plan $ in Millions	Jun. 02, 2021 USD ($)
Subsequent Event [Line Items]
Expected cost of investment	$ 50
Expected term of investment	24 months
Digital Press and Insertion Equipment
Subsequent Event [Line Items]
Expected cost of investment	$ 36
Employee-Related, Facilities Optimization, and Other Implementation Costs
Subsequent Event [Line Items]
Expected cost of investment	$ 14