CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $) In Thousands, except Share data	Total	Common Stock [Member]	Capital In Excess Of Par Value [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Deferred Compensation [Member]
Balance at Sep. 30, 2011	$ 651,908	$ 19,046	$ 471,928	$ 424,153	$ (231,699)	$ (7,724)	$ (23,796)
Balance (in Shares) at Sep. 30, 2011		76,184,000			14,434,000
Net income (loss)	17,011			17,011
Dividends	(4,743)			(4,743)
Tax effect from exercise/vesting of equity awards, net	834		834
Amortization of deferred compensation	2,031						2,031
Common stock acquired	(10,382)				(10,382)
Common stock acquired (in Shares)					1,187,000
Equity awards granted, net	(983)	81	(1,064)
Equity awards granted, net (in Shares)		325,000
ESOP allocation of common stock	(128)		(128)
Stock-based compensation	10,439		10,439
Other comprehensive income (loss), net of taxes	(11,835)					(11,835)
Balance at Sep. 30, 2012	654,152	19,127	482,009	436,421	(242,081)	(19,559)	(21,765)
Balance (in Shares) at Sep. 30, 2012		76,509,000			15,621,000
Net income (loss)	3,767			3,767
Dividends	(5,825)			(5,825)
Tax effect from exercise/vesting of equity awards, net	150		150
Amortization of deferred compensation	1,991						1,991
Common stock acquired	(32,521)				(32,521)
Common stock acquired (in Shares)					2,906,000
Equity awards granted, net	(195)	277	(472)
Equity awards granted, net (in Shares)		1,107,000
ESOP allocation of common stock	230		230
Stock-based compensation	12,495		12,495
Other comprehensive income (loss), net of taxes	16,220					16,220
Balance at Sep. 30, 2013	650,464	19,404	494,412	434,363	(274,602)	(3,339)	(19,774)
Balance (in Shares) at Sep. 30, 2013		77,616,000			18,527,000
Net income (loss)	(177)			(177)
Dividends	(6,273)			(6,273)
Tax effect from exercise/vesting of equity awards, net	273		273
Amortization of deferred compensation	2,457						2,457
Common stock issued	584	11	573
Common stock issued (in Shares)		44,000
Common stock acquired	(79,614)				(79,614)
Common stock acquired (in Shares)					6,808,000
Equity awards granted, net	(152)	206	(358)
Equity awards granted, net (in Shares)		824,000
ESOP purchase of common stock	(20,000)						(20,000)
ESOP allocation of common stock	(283)		(283)
Stock-based compensation	11,473		11,473
Other comprehensive income (loss), net of taxes	(26,725)					(26,725)
Balance at Sep. 30, 2014	$ 532,027	$ 19,621	$ 506,090	$ 427,913	$ (354,216)	$ (30,064)	$ (37,317)
Balance (in Shares) at Sep. 30, 2014		78,484,000			25,335,000