CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Total	Common Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Noncontrolling Interest in VIE
Balance at Sep. 30, 2010		$ 12,574	$ 553,452	$ (16,340)	$ (36,074)	$ (563)
Balance (in shares) at Sep. 30, 2010		26,736
Increase (Decrease) in Stockholders' Equity
Net income	83,594		83,594			310
Comprehensive income (loss), net of tax				(10,153)
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	629,560	(26,493)	(36,078)	(253)
Balance (in shares) at Sep. 30, 2011		26,736
Increase (Decrease) in Stockholders' Equity
Net income	91,900		91,900			204
Comprehensive income (loss), net of tax				5,345
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	670,342	12,574	715,043	(21,148)	(36,078)	(49)
Balance (in shares) at Sep. 30, 2012		26,736
Increase (Decrease) in Stockholders' Equity
Net income	19,798		19,798			183
Comprehensive income (loss), net of tax				17,770
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	$ 704,927	$ 15,825	$ 728,424	$ (3,378)	$ (36,078)	$ 134
Balance (in shares) at Sep. 30, 2013		26,736