Retirement Plans (Schedule Of Components Of Net Periodic Benefit Cost For Plans) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 1,002	$ 915	$ 2,004	$ 1,829
Expected return on assets	(1,104)	(1,075)	(2,208)	(2,149)
Amortization of Prior service cost	3	3	6	6
Amortization of Actuarial loss	413	492	826	984
Net periodic benefit cost	$ 314	$ 335	$ 628	$ 670