GUARANTEES (Details) $ in Thousands	Sep. 30, 2017 USD ($)
Guarantor Obligations [Line Items]
Maximum Potential Payment	$ 13,911
Carrying Amount of Associated Liability	43
Standby letters of credit
Guarantor Obligations [Line Items]
Maximum Potential Payment	10,353
Carrying Amount of Associated Liability	0
Letter of credit for development project	9,200
Guarantees
Guarantor Obligations [Line Items]
Maximum Potential Payment	2,254
Carrying Amount of Associated Liability	43
Surety bonds
Guarantor Obligations [Line Items]
Maximum Potential Payment	1,304
Carrying Amount of Associated Liability	$ 0