Defined Benefit Plans (Details Textual) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jun. 30, 2012
Defined Benefit Plans (Textual) [Abstract]
Number of defined benefit pension plans	3
Number of 401K Plans	2
Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Contribution to pension plans	$ 8,304
Additional Contribution to pension plans	1,016
Supplemental Executive Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Contribution to pension plans	396
Additional Contribution to pension plans	$ 131
Number of executive officers	3
Number of former executive officers	2