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COMMITMENTS AND CONTINGENCIES (Details)
$ in Millions
6 Months Ended
Jun. 30, 2019
USD ($)
Commitments  
Purchase obligations $ 9.2
Changes in the Carrying Amount of the Warranty Accrual  
Beginning balance 9.0
Accruals related to product warranties 5.1
Additions related to acquisitions 0.2
Reductions for payments made (5.4)
Ending balance $ 8.9
Minimum  
Product Warranty Liability  
Standard warranty obligation term (in years) 2 years
Standard installation warranty obligation term (in years) 1 year
Maximum  
Product Warranty Liability  
Standard warranty obligation term (in years) 5 years
Standard installation warranty obligation term (in years) 5 years