RELATED PARTY TRANSACTIONS - Trade Receivables (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Related Party Transaction [Line Items]
Trade receivables	$ 29.7	$ 38.0
Equinor ASA \| Director
Related Party Transaction [Line Items]
Trade receivables	0.0	24.1
Dofcon Navegacao \| Equity Method Investee
Related Party Transaction [Line Items]
Trade receivables	22.7	4.2
Techdof Brasil AS \| Equity Method Investee
Related Party Transaction [Line Items]
Trade receivables	4.5	8.0
Others \| Others
Related Party Transaction [Line Items]
Trade receivables	$ 2.5	$ 1.7

For an unclassified balance sheet, amount of receivables arising from transactions with related parties.

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Name:	us-gaap_AccountsReceivableRelatedParties
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant