PENSION, PROFIT SHARING AND OTHER BENEFIT PLANS (Details) (USD $)	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2010
Deferred Compensation Plans
Minimum period in which members of management may elect to defer receiving payment for a portion of their compensation	5 years
Interest rate adjustment semi-annually (as a percent)	1.90%
Defined Contribution Plans
Minimum discretionary contribution with Board of Directors	0.5	0.5	0.5
Company contributions to defined contribution plan	$ 19,600,000	$ 19,700,000	$ 18,600,000
Weighted-average assumptions used to determine benefit obligation at the end of the year
Discount rate (as a percent)			4.30%
Rate of compensation increase (as a percent)			3.80%
Weighted-average assumptions used to determine net periodic benefit cost at the end of the year
Discount rate (as a percent)			5.20%
Expected return on plan assets (as a percent)			7.00%
Rate of compensation increase (as a percent)			4.30%
Equity securities
Weighted-average assumptions used to determine net periodic benefit cost at the end of the year
Target allocation percentage, minimum	20.00%
Target allocation percentage, maximum	55.00%
Debt securities
Weighted-average assumptions used to determine net periodic benefit cost at the end of the year
Target allocation percentage, minimum	25.00%
Target allocation percentage, maximum	75.00%
Cash
Weighted-average assumptions used to determine net periodic benefit cost at the end of the year
Target allocation percentage, minimum	0.00%
Target allocation percentage, maximum	55.00%
Real Estate
Change in plan assets:
Fair value of plan assets at the beginning of the year	6,263,000
Fair value of plan assets at the end of the year	7,096,000
Weighted-average assumptions used to determine net periodic benefit cost at the end of the year
Target allocation percentage, minimum	0.00%
Target allocation percentage, maximum	10.00%
Defined Benefit Pension Plans
Defined Benefit Pension Plans
Number of European employees covered by contributory defined benefit pension plan for which benefits were frozen (as a percent)				50.00%
Expected contribution to defined benefit pension plans in next fiscal year	3,600,000
Unrecognized actuarial loss expected to be recognized in net pension cost over next fiscal year	700,000
Unrecognized actuarial loss expected to be recognized in net pension cost over next fiscal year, net of tax	500,000
Plan assets expected to be returned in 2013	0
Projected benefit obligation, ABO and fair value of plan assets for the defined benefit pension plans in which the ABO was in excess of the fair value of plan assets
Projected benefit obligation	224,201,000	209,118,000
Accumulated benefit obligation	224,201,000	202,916,000
Fair value of plan assets	206,982,000	188,337,000
Change in benefit obligations:
Net benefit obligation at the beginning of the year	209,118,000	215,706,000
Service cost	636,000	532,000	508,000
Interest cost	9,967,000	8,867,000	9,565,000
Actuarial loss (gain)	10,730,000	(5,726,000)
Plan amendments	(1,044,000)	(1,178,000)
Gross benefits paid	(6,229,000)	(8,576,000)
Foreign currency exchange rate changes	1,023,000	(507,000)
Net benefit obligation at the end of the year	224,201,000	209,118,000	215,706,000
Change in plan assets:
Fair value of plan assets at the beginning of the year	188,337,000	169,323,000
Actual return on plan assets	21,127,000	24,707,000
Employer contributions	3,728,000	3,915,000
Gross benefits paid	(6,229,000)	(8,576,000)
Administrative expenses	(730,000)	(843,000)
Foreign currency exchange rate changes	749,000	(189,000)
Fair value of plan assets at the end of the year	206,982,000	188,337,000	169,323,000
Unfunded status of the plans	(17,219,000)	(20,781,000)
Unrecognized net actuarial loss	33,376,000	31,657,000
Net amount recognized	16,157,000	10,876,000
Amounts recognized in Accumulated OCI
Liability adjustment to OCI	(33,376,000)	(31,657,000)
Deferred tax asset	9,925,000	9,291,000
Accumulated other comprehensive loss	(23,451,000)	(22,366,000)
Components of net periodic pension cost (benefit)
Service cost	636,000	532,000	508,000
Interest cost	9,967,000	8,867,000	9,565,000
Expected return on plan assets	(13,183,000)	(11,605,000)	(10,091,000)
Amortization of actuarial loss	802,000	1,798,000	1,593,000
Administrative expenses	152,000	76,000	82,000
Net pension cost	$ (1,626,000)	$ (332,000)	$ 1,657,000
Weighted-average assumptions used to determine benefit obligation at the end of the year
Discount rate (as a percent)	4.20%	4.80%
Rate of compensation increase (as a percent)	3.20%	4.40%
Weighted-average assumptions used to determine net periodic benefit cost at the end of the year
Discount rate (as a percent)	4.80%	4.30%
Expected return on plan assets (as a percent)	7.00%	7.00%
Rate of compensation increase (as a percent)	4.40%	3.80%