INTEGRATION AND RESTRUCTURING (Details) $ in Millions					1 Months Ended	12 Months Ended
	Mar. 10, 2020 segment	Jul. 31, 2019 segment	Jul. 30, 2019 segment	Jul. 29, 2019 segment	Jun. 30, 2020 segment	Dec. 31, 2020 USD ($) segment	Dec. 31, 2019 USD ($) segment	Dec. 31, 2018 segment	Dec. 31, 2020 USD ($) segment
Restructuring Cost and Reserve [Line Items]
Number of Operating Segments | segment						11	13	16
Restructuring charges						$ 9.5	$ 8.4
Restructuring Reserve [Roll Forward]
Costs accrued						9.5	8.4
Consolidated
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve						0.1	1.8		$ 0.1
Restructuring Reserve [Roll Forward]
Balance at beginning of the period						1.8
Costs accrued						1.3
Amounts paid or charged						(2.3)
Adjustments						(0.7)
Balance at end of the period						0.1	1.8
Consolidated | Severance and Other Payroll
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve						0.1	1.8		0.1
Restructuring Reserve [Roll Forward]
Balance at beginning of the period						1.8
Costs accrued						0.6
Amounts paid or charged						(1.6)
Adjustments						(0.7)
Balance at end of the period						0.1	1.8
Consolidated | Other
Restructuring Reserve [Roll Forward]
Costs accrued						0.5
Amounts paid or charged						(0.5)
Consolidated | Fixed Asset Impairment
Restructuring Reserve [Roll Forward]
Costs accrued						0.2
Amounts paid or charged						(0.2)
Specialized | Consolidated
Restructuring Cost and Reserve [Line Items]
Restructuring charges						8.8	3.9
Restructuring Reserve [Roll Forward]
Costs accrued						0.6
Amounts paid or charged						(0.6)
Specialized | Consolidated | Severance and Other Payroll
Restructuring Reserve [Roll Forward]
Costs accrued						0.2
Amounts paid or charged						(0.2)
Specialized | Consolidated | Other
Restructuring Reserve [Roll Forward]
Costs accrued						0.4
Amounts paid or charged						(0.4)
Flatbed | Consolidated
Restructuring Cost and Reserve [Line Items]
Restructuring charges						0.6	1.7
Restructuring Reserve [Roll Forward]
Costs accrued						0.6
Amounts paid or charged						(0.6)
Flatbed | Consolidated | Severance and Other Payroll
Restructuring Reserve [Roll Forward]
Costs accrued						0.3
Amounts paid or charged						(0.3)
Flatbed | Consolidated | Other
Restructuring Reserve [Roll Forward]
Costs accrued						0.1
Amounts paid or charged						(0.1)
Flatbed | Consolidated | Fixed Asset Impairment
Restructuring Reserve [Roll Forward]
Costs accrued						0.2
Amounts paid or charged						(0.2)
Corporate | Consolidated
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve						0.1	1.8		0.1
Restructuring Reserve [Roll Forward]
Balance at beginning of the period						1.8
Costs accrued						0.1
Amounts paid or charged						(1.1)
Adjustments						(0.7)
Balance at end of the period						0.1	1.8
Corporate | Consolidated | Severance and Other Payroll
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve						0.1	1.8		$ 0.1
Restructuring Reserve [Roll Forward]
Balance at beginning of the period						1.8
Costs accrued						0.1
Amounts paid or charged						(1.1)
Adjustments						(0.7)
Balance at end of the period						0.1	1.8
Aveda
Restructuring Cost and Reserve [Line Items]
Restructuring charges						8.2
The Plan [Member]
Restructuring Cost and Reserve [Line Items]
Number of Operating Segments | segment			13	16
Number of operating segments integrated | segment		3
Number of operating segments absorbing integrated operating segments | segment		3
Plan And Project Pivot
Restructuring Cost and Reserve [Line Items]
Restructuring charges						1.3	$ 8.4
Phase II Plan
Restructuring Cost and Reserve [Line Items]
Number of operating segments integrated | segment	3				2
Number of operating segments absorbing integrated operating segments | segment	3
Number of integrations completed | segment									1
Phase II Plan | Specialized | Consolidated
Restructuring Reserve [Roll Forward]
Costs accrued						8.2
Amounts paid or charged						(8.2)
Phase II Plan | Specialized | Consolidated | Severance and Other Payroll
Restructuring Reserve [Roll Forward]
Costs accrued						4.4
Amounts paid or charged						(4.4)
Phase II Plan | Specialized | Consolidated | Other
Restructuring Reserve [Roll Forward]
Costs accrued						0.8
Amounts paid or charged						(0.8)
Phase II Plan | Specialized | Consolidated | Operating Lease Termination
Restructuring Reserve [Roll Forward]
Costs accrued						3.0
Amounts paid or charged						$ (3.0)
Phase I and II Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs incurred, cumulative total									$ 9.7