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DEBT - Borrowings (Details) - USD ($)
$ in Thousands
Apr. 26, 2022
Mar. 31, 2022
Dec. 31, 2021
Line of Credit Facility [Line Items]      
Line of credit facility   $ 50,000 $ 100,000
Borrowings under San Mateo Credit Facility   405,000 $ 385,000
Credit Agreement      
Line of Credit Facility [Line Items]      
Line of credit facility   50,000  
Unsecured Debt | Senior Notes Due 2026      
Line of Credit Facility [Line Items]      
Long-term debt outstanding   1,050,000  
Unsecured Debt | SBA Loan, CARES Act      
Line of Credit Facility [Line Items]      
Long-term debt outstanding   7,500  
Letter of Credit | Credit Agreement      
Line of Credit Facility [Line Items]      
Outstanding letters of credit   45,800  
Letter of Credit | Credit Agreement | Subsequent Event      
Line of Credit Facility [Line Items]      
Repayments of debt $ 50,000    
Line of Credit | San Mateo Credit Facility      
Line of Credit Facility [Line Items]      
Borrowings under San Mateo Credit Facility   405,000  
Outstanding letters of credit   $ 9,000  
Line of Credit | San Mateo Credit Facility | Subsequent Event      
Line of Credit Facility [Line Items]      
Repayments of debt $ 30,000