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SUBSEQUENT EVENTS (Details) - USD ($) $ / shares in Units, $ in Thousands					3 Months Ended
	Aug. 06, 2024	Jul. 15, 2024	Jul. 08, 2024	Apr. 23, 2024	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023
Subsequent Event [Line Items]
Dividends, common stock					$ 7,344	$ 7,243	$ 7,229	$ 6,732
Common stock, dividends, per share, declared (in dollars per share)					$ 0.12	$ 0.12	$ 0.12	$ 0.12
Kenya Revenue Authority
Subsequent Event [Line Items]
Income tax possible loss				$ 79,000
Subsequent Event
Subsequent Event [Line Items]
Dividends, common stock	$ 7,200
Common stock, dividends, per share, declared (in dollars per share)	$ 0.12
Subsequent Event \| Senior Convertible Notes Due 2027 \| Convertible Debt
Subsequent Event [Line Items]
Debt instrument, interest rate, stated percentage		2.50%
Debt instrument, face amount		$ 45,200
Convertible debt, noncurrent		431,300
Proceeds from convertible debt		$ 44,200
Subsequent Event \| Kenya Revenue Authority
Subsequent Event [Line Items]
Income tax possible loss			$ 0