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, 2013	Sep. 30, 2012	Sep. 30, 2011
Change in benefit obligation:
Actuarial (gain) loss	$ (1,954)
Change in plan assets:
Fair value of plan assets at beginning of fiscal year	160,833
Fair value of plan assets at end of fiscal year	153,731
Pension Plan, Defined Benefit [Member]
Change in benefit obligation:
Benefit obligation at beginning of fiscal year	232,939	212,660
Benefits earned during the year	165	238
Interest cost	7,977	9,191	9,552
Plan participant contributions	15	16
Benefits paid	(10,632)	(10,369)
Benefits paid - settlement	(11,548)	0
Effect of foreign currency	462	(413)
Actuarial (gain) loss	(19,945)	21,616
Actuarial gain - settlement	(3,472)	0
Benefit obligation at end of fiscal year	195,961	232,939	212,660
Change in plan assets:
Fair value of plan assets at beginning of fiscal year	160,823	137,678
Actual return on plan assets	12,537	25,190
Plan participant contributions	15	16
Company contributions	2,203	8,638
Effect of foreign currency	333	(330)
Benefits paid	(10,632)	(10,369)
Benefits paid - settlement	(11,548)	0
Fair value of plan assets at end of fiscal year	153,731	160,823	137,678
Projected benefit obligation in excess of plan assets	(42,230)	(72,116)
Amounts recognized in the statement of financial position consist of:
Accrued liabilities	0	0
Other liabilities (long-term)	(42,230)	(72,116)
Total Liabilities	(42,230)	(72,116)
Net actuarial losses	16,679	44,656
Prior service cost	4	10
Deferred taxes	(5,839)	(15,633)
Total Accumulated other comprehensive loss, net of tax	10,844	29,033
Net amount recognized at September 30,	(31,386)	(43,083)
Accumulated benefit obligations	195,590	232,574
Information for plans with accumulated benefit obligations in excess of plan assets:
ABO	195,590	232,574
PBO	195,961	232,939
Fair value of plan assets	153,731	160,823
Supplemental Benefits [Member]
Change in benefit obligation:
Benefit obligation at beginning of fiscal year	41,473	41,285
Benefits earned during the year	35	36
Interest cost	1,344	1,692	1,759
Plan participant contributions	0	0
Benefits paid	(4,051)	(3,936)
Benefits paid - settlement	0	0
Effect of foreign currency	0	0
Actuarial (gain) loss	(127)	2,396
Actuarial gain - settlement	0	0
Benefit obligation at end of fiscal year	38,674	41,473	41,285
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	4,051	3,936
Effect of foreign currency	0	0
Benefits paid	(4,051)	(3,936)
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	(38,674)	(41,473)
Amounts recognized in the statement of financial position consist of:
Accrued liabilities	(4,031)	(3,897)
Other liabilities (long-term)	(34,643)	(37,576)
Total Liabilities	(38,674)	(41,473)
Net actuarial losses	19,335	20,750
Prior service cost	99	113
Deferred taxes	(6,802)	(7,302)
Total Accumulated other comprehensive loss, net of tax	12,632	13,561
Net amount recognized at September 30,	(26,042)	(27,912)
Accumulated benefit obligations	38,674	41,473
Information for plans with accumulated benefit obligations in excess of plan assets:
ABO	38,674	41,473
PBO	38,674	41,473
Fair value of plan assets	$ 0	$ 0