SIGNIFICANT ACCOUNTING POLICIES - RECOGNITION OF REVENUES AND EXPENSES (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Total	$ 3,094.6	$ 4,343.0	$ 3,925.3
Ocean Transportation
Ocean Transportation services	2,420.8	3,508.0	3,101.9
Terminal and other related services	36.9	18.5	16.0
Fuel sales	12.3	11.3	7.2
Vessel management and related services	7.0	6.8	7.7
Total	$ 2,477.0	$ 3,544.6	$ 3,132.8
Percentage of ocean transportation revenues and fuel sales denominated in foreign currency	3.00%	3.00%	3.00%
Logistics
Transportation Brokerage and Freight Forwarding services	$ 546.8	$ 695.1	$ 707.4
Warehousing and distribution services	42.5	53.5	44.7
Supply chain management and other services	28.3	49.8	40.4
Total	$ 617.6	$ 798.4	$ 792.5
Percentage of transportation brokerage and freight forwarding services revenue denominated in foreign currency	3.00%	3.00%	3.00%