EMPLOYEE BENEFIT PLANS (Details) € in Thousands		12 Months Ended
	Jan. 01, 2015	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2014 EUR (€)	Sep. 30, 2013 USD ($)
EMPLOYEE BENEFIT PLANS (Details) [Line Items]
Defined contribution plan, employer discretionary contribution amount		$ 7,988,000	$ 8,207,000		$ 6,950,000
Postemployment benefits liability		2,035,000	1,990,000
Recognition of settlement		$ 0	0		2,142,000
Defined benefit plan reduction in pension liability due to buyouts					3,472,000
Defined benefit plan increase in accumulated other comprehensive income loss due to buyouts					3,649,000
Change in discount rate		10.00%
Tax benefit for amortization of pension cost		$ 764,000	677,000		1,086,000
Defined benefit plan, actuarial gain (loss)		2,746,000
Service cost		$ 20,000
Defined benefit plan, target plan asset allocations		100.00%
Defined benefit plans, estimated future employer contributions in next fiscal year		$ 0
Completion period of service		1 year
Maximum compensation of proportion		$ 265,000
Employee stock ownership plan (ESOP), compensation expense		3,400,000	2,447,000		$ 2,015,000
Employee stock ownership plan (ESOP), deferred shares, fair value		$ 47,907,000	37,372,000
Adjusted Funding Target Attainment Percent [Member]
EMPLOYEE BENEFIT PLANS (Details) [Line Items]
Defined benefit plan, target plan asset allocations	102.30%	80.00%
Employee Benefit Plans [Member]
EMPLOYEE BENEFIT PLANS (Details) [Line Items]
Accumulated other comprehensive income (loss), pension and other postretirement benefit plans, net of tax		$ (97,000)	(38,000)
Pension and other postretirement benefit expense		58,000	59,000
Supplemental Employee Retirement Plan, Defined Benefit [Member]
EMPLOYEE BENEFIT PLANS (Details) [Line Items]
Company contributions		1,776,000		€ 1,300
Recognition of settlement			$ 0
Defined benefit plan, expected future benefit payments, next twelve months		$ 4,056,000