LEASES - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($) lease item	Feb. 01, 2021 USD ($)
Lessee, Lease, Description [Line Items]
Operating lease assets		$ 45.6
Operating lease liabilities		$ 45.3
Number of branches combined to other locations | item	3
Corporate headquarters office space lease
Lessee, Lease, Description [Line Items]
Decrease in operating lease liability	$ 11.6
Early termination fee	$ 12.0
Number of leases terminated | lease	1
Branch office space lease
Lessee, Lease, Description [Line Items]
Decrease in operating lease liability	$ 3.7
Early termination fee	$ 4.0
Number of leases terminated | lease	3