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FINANCIAL INSTRUMENTS - Notional and Carrying Amounts of the Senior Unsecured Notes (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Disclosure of detailed information about hedging instruments [line items]    
Carrying Amount $ 555,261 $ 489,964
Senior Unsecured Notes | Hedges of net investment    
Disclosure of detailed information about hedging instruments [line items]    
Notional Amount 400,000 250,000
Carrying Amount $ 395,614 $ 246,236