ACCOUNTING PRONOUNCEMENTS - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2019	Sep. 30, 2021	Sep. 30, 2020	Oct. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accounting Standards Update [Extensible List]	Accounting Standards Update 2016-02
Operating lease right-of-use-assets		$ 80,262	$ 72,011
Operating lease liabilities		$ 82,423
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use-assets				$ 80,000
Operating lease liabilities				$ 80,000