LEASES (Tables)

12 Months Ended

Dec. 31, 2021

Leases [Abstract]

Other Information Related to Operating Leases [Table Text Block]

	Years Ended
	December 31,
Other information related to operating leases	2021			2020			2019
				(Millions of dollars)
Weighted-average remaining lease term	6 years			7 years			7 years
Weighted-average discount rate	2.78		%	2.81		%	3.62		%
Supplemental cash flows information
Lease payments	$	(8.0)		$	(8.0)		$	(8.4)
Right-of-use assets obtained in exchange for lease obligations	$	0.4		$	9.8		$	9.5

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

	December 31,
Future minimum lease payments under non-cancellable operating leases	2021
	(Millions of dollars)
2022	$	7.5
2023	6.3
2024	4.8
2025	4.1
2026	3.3
Thereafter	7.7
Total future minimum lease payments	$	33.7
Imputed interest	(2.5)
Total operating lease liability	$	31.2
Consolidated balance sheets as of December 31, 2021
Current operating lease liability	$	6.8
Long-term operating lease liability	24.4
Total operating lease liability	$	31.2