GOODWILL AND IDENTIFIABLE INTANGIBLE ASSETS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Goodwill, Ending Balance	$ 1,090,610	$ 985,072	$ 985,072
Goodwill, Acquired During Period	105,538	0	$ 0
Other Intangible Assets	133,576	12,284
Total goodwill and other intangible assets	1,224,186	997,356
Core Deposits [Member]
Finite-Lived Intangible Assets [Line Items]
Other Intangible Assets	119,074	10,689
Other identifiable Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Other Intangible Assets	$ 14,502	$ 1,595