SHAREHOLDERS' EQUITY - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions					3 Months Ended						9 Months Ended
	Aug. 17, 2023	Jun. 07, 2023	May 18, 2023	Mar. 01, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Jun. 30, 2023	Jun. 30, 2022	Nov. 30, 2022	Sep. 30, 2022
Components of accumulated other comprehensive income (loss)
Number of common shares authorized to be repurchased (in shares)		7.0			5.0						5.0		4.0
Shares of common stock repurchased (in shares)					3.2						6.5	3.2
Aggregate cost of repurchased shares					$ 103,200						$ 249,000	$ 77,000
Excise tax					$ 1,000						1,800
Dividends declared (in dollars per share)		$ 0.25	$ 0.235	$ 0.25	$ 0.25	$ 0.25	$ 0.25	$ 0.25	$ 0.25	$ 0.25
Dividends payable					$ 48,878						$ 48,878			$ 26,693
Subsequent Event
Components of accumulated other comprehensive income (loss)
Dividends declared (in dollars per share)	$ 0.235