EMPLOYEE BENEFIT PLANS (Details) - Plan assets and benefit obligation of the defined benefit plans (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Change in benefit obligation:
Plan participant contributions	$ 3
Actuarial (gain) loss	(2,165)
Change in plan assets:
Fair value of plan assets at beginning of fiscal year	153,731
Plan participant contributions	3
Fair value of plan assets at end of fiscal year	154,966
Defined Benefits [Member]
Change in benefit obligation:
Benefit obligation at beginning of fiscal year	195,961	232,939
Benefits earned during the year	22	165
Interest cost	8,205	7,977	9,191
Plan participant contributions	3	15
Benefits paid	(10,359)	(10,632)
Benefits paid - settlement	0	(11,548)
Plan settlement	(9,780)	0
Effect of foreign currency	37	462
Actuarial (gain) loss	10,238	(19,945)
Actuarial gain - settlement	0	(3,472)
Benefit obligation at end of fiscal year	194,327	195,961	232,939
Change in plan assets:
Fair value of plan assets at beginning of fiscal year	153,731	160,823
Actual return on plan assets	12,830	12,537
Plan participant contributions	3	15
Company contributions	7,433	2,203
Effect of foreign currency	26	333
Benefits paid	(10,359)	(10,632)
Benefits paid - settlement	0	(11,548)
Plan settlement	(8,698)	0
Fair value of plan assets at end of fiscal year	154,966	153,731	160,823
Projected benefit obligation in excess of plan assets	(39,361)	(42,230)
Amounts recognized in the statement of financial position consist of:
Accrued liabilities	0	0
Other liabilities (long-term)	(39,361)	(42,230)
Total Liabilities	(39,361)	(42,230)
Net actuarial losses	23,433	16,679
Prior service cost	2	4
Deferred taxes	(8,202)	(5,839)
Total Accumulated other comprehensive loss, net of tax	15,233	10,844
Net amount recognized at September 30,	(24,128)	(31,386)
Accumulated benefit obligations	194,327	195,590
Information for plans with accumulated benefit obligations in excess of plan assets:
ABO	194,327	195,590
PBO	194,327	195,961
Fair value of plan assets	154,966	153,731
Supplemental Benefits [Member]
Change in benefit obligation:
Benefit obligation at beginning of fiscal year	38,674	41,473
Benefits earned during the year	0	35
Interest cost	1,497	1,344	1,692
Plan participant contributions	0	0
Benefits paid	(4,083)	(4,051)
Benefits paid - settlement	0	0
Plan settlement	0	0
Effect of foreign currency	0	0
Actuarial (gain) loss	2,119	(127)
Actuarial gain - settlement	0	0
Benefit obligation at end of fiscal year	38,207	38,674	41,473
Change in plan assets:
Fair value of plan assets at beginning of fiscal year	0	0
Actual return on plan assets	0	0
Plan participant contributions	0	0
Company contributions	4,083	4,051
Effect of foreign currency	0	0
Benefits paid	(4,083)	(4,051)
Benefits paid - settlement	0	0
Fair value of plan assets at end of fiscal year	0	0	0
Projected benefit obligation in excess of plan assets	(38,207)	(38,674)
Amounts recognized in the statement of financial position consist of:
Accrued liabilities	(4,058)	(4,031)
Other liabilities (long-term)	(34,149)	(34,643)
Total Liabilities	(38,207)	(38,674)
Net actuarial losses	20,420	19,335
Prior service cost	85	99
Deferred taxes	(7,177)	(6,802)
Total Accumulated other comprehensive loss, net of tax	13,328	12,632
Net amount recognized at September 30,	(24,879)	(26,042)
Accumulated benefit obligations	38,207	38,674
Information for plans with accumulated benefit obligations in excess of plan assets:
ABO	38,207	38,674
PBO	38,207	38,674
Fair value of plan assets	$ 0	$ 0