BORROWINGS - Schedule of Long-term Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Amount
Subordinated debt	$ 314,048	$ 313,705
Unamortized debt issuance costs	(1,709)	(1,998)
Other Notes Payable, Noncurrent	26,155	32,492
Finance Lease, Liability	1,633	1,698
Capital loan with municipality	775	775
Total long-term debt	$ 340,902	$ 346,672
Average Rate
Debt, Weighted Average Interest Rate	5.61%	5.48%
Other Notes payable interest rate	4.08%	4.44%
Lessee, Finance Lease, Discount Rate	3.83%	3.82%
Weighted average rate on other long-term debt	0.00%	0.00%
Total long-term debt	5.50%	5.40%