DEBT - Revolving Credit Facility (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($) Fiscalquarter Equitycureright	Dec. 31, 2022 USD ($)
Debt Instrument [Line Items]
Maximum borrowing capacity on line of credit	$ 350,000	$ 495,000
Letters of credit utilized	1,300,000	1,200,000
Revolving credit facility borrowings	0	0
Revolving Credit Facility | $1 Billion Revolving Credit Facility | Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity on line of credit	$ 1,000,000	1,000,000
Maturity date	Mar. 11, 2027
Letters of credit utilized	$ 70,200	69,200
Revolving credit facility borrowings	40,000
Unamortized debt issuance costs	3,600	3,800
Availability under revolving credit facility	$ 929,800	930,800
Maximum capitalization ratio	60.00%
Minimum consolidated tangible net worth requirement	$ 3,000,000
Number of consecutive fiscal quarters in which equity cure right can be used twice (in fiscal quarter) | Fiscalquarter	4
Maximum number of times equity cure right can be exercised | Equitycureright	5
Revolving Credit Facility | $100 Million Revolving Credit Facility | Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity on line of credit	$ 100,000	$ 100,000
Maximum consecutive days for financial covenant	5 days