CAPITAL STOCK - Completed public offerings ofcommon stock (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						12 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2021
Stock Issued During Period Shares New Issues				7,164,000	4,617,000	3,650,000	20,165,636
Stock Issued During Period, Value, New Issues	$ 0	$ 0		$ 177,007	$ 124,746	$ 96,908	$ 514,059
At the Market Offering Program [Member]
Weighted Average Price Received Per Share			$ 24.35	$ 24.70	$ 27.00	$ 25.50	$ 24.35
Stock Issued During Period Shares New Issues			4,734,940	7,163,668	4,617,418	61,610
Stock Issued During Period, Value, New Issues			$ 115,398	$ 177,007	$ 124,746	$ 1,572
Follow-on Offering [Member]
Weighted Average Price Received Per Share						$ 26.55
Stock Issued During Period Shares New Issues						3,588,000
Stock Issued During Period, Value, New Issues						$ 95,336