CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Total	Common Stock	Retained Earnings	Retained Earnings Revenue recognition and other individually immaterial errors	Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) Revenue recognition and other individually immaterial errors	Treasury Stock	Noncontrolling Interest in VIE
Balance at Sep. 30, 2010 (Previously Reported)		$ 12,574	$ 553,452		$ (16,340)		$ (36,074)	$ (563)
Balance (Adjustments)				(1,687)		380
Balance at Sep. 30, 2010		12,574	551,765		(15,960)		(36,074)	(563)
Balance (in shares) at Sep. 30, 2010 (Previously Reported)		(26,736)
Balance (in shares) at Sep. 30, 2010		(26,736)
Increase (Decrease) in Stockholders' Equity
Net income	86,044		86,044					310
Net income at Oct. 01, 2010 (Previously Reported)	83,594
Net income (Adjustments)	2,450
Comprehensive income (loss), net of tax					(10,232)
Purchase of treasury stock							(4)
Cash dividends paid -- $.24, $.24 and $.28 per share of common stock for year ended September 2013, 2012 and 2011, respectively			(7,486)
Balance at Sep. 30, 2011		12,574	630,323		(26,192)		(36,078)	(253)
Balance (in shares) at Sep. 30, 2011		(26,736)
Increase (Decrease) in Stockholders' Equity
Net income	97,427		97,427					204
Net income at Oct. 01, 2011 (Previously Reported)	91,900
Net income (Adjustments)	5,527
Comprehensive income (loss), net of tax					5,534
Cash dividends paid -- $.24, $.24 and $.28 per share of common stock for year ended September 2013, 2012 and 2011, respectively			(6,417)
Balance at Sep. 30, 2012 (Previously Reported)	670,342
Balance (Adjustments)	6,780
Balance at Sep. 30, 2012	677,122	12,574	721,333		(20,658)		(36,078)	(49)
Balance (in shares) at Sep. 30, 2012		(26,736)
Increase (Decrease) in Stockholders' Equity
Net income	25,086		25,086					183
Net income at Oct. 01, 2012 (Previously Reported)	19,798
Net income (Adjustments)	5,288
Comprehensive income (loss), net of tax					17,855
Stock- based compensation		3,251
Cash dividends paid -- $.24, $.24 and $.28 per share of common stock for year ended September 2013, 2012 and 2011, respectively			(6,417)
Balance at Sep. 30, 2013 (Previously Reported)	704,927
Balance (Adjustments)	12,153
Balance at Sep. 30, 2013	$ 717,080	$ 15,825	$ 741,266		$ (2,803)		$ (36,078)	$ 134
Balance (in shares) at Sep. 30, 2013		(26,736)