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DEBT - Cash Flow Hedges Narrative (Details) - Cash Flow Hedging - USD ($)
Sep. 30, 2021
Dec. 31, 2020
Interest Rate Derivative    
Debt Instrument [Line Items]    
Notional amount $ 195,000,000 $ 190,000,000
Weighted average percentage rate paid (as a percent) 2.51%  
Forward Starting Interest Rate Derivative    
Debt Instrument [Line Items]    
Notional amount $ 85,000,000 $ 125,000,000
Weighted average percentage rate paid (as a percent) 1.55%  
Floor interest rate (as a percent) 0.00%