CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Common Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Noncontrolling Interest in VIE	Total
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			204	97,427
Other comprehensive loss, net of tax			5,534
Cash dividends paid -- $.24, $.24 and $.24 per share of common stock for year ended September 2014, 2013 and 2012, respectively		(6,417)
Balance at Sep. 30, 2012	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			183	25,086
Other comprehensive loss, net of tax			17,855
Stock- based compensation	3,251
Cash dividends paid -- $.24, $.24 and $.24 per share of common stock for year ended September 2014, 2013 and 2012, respectively		(6,417)
Balance at Sep. 30, 2013	15,825	740,002	(2,803)	(36,078)	134	717,080
Balance (in shares) at Sep. 30, 2013	26,736
Increase (Decrease) in Stockholders' Equity
Net income		69,491			89	69,491
Other comprehensive loss, net of tax			(2,569)
Stock issued under equity incentive plans, value	113	(5)
Stock issued under equity incentive plans, shares	75
Purchase of common stock, value	(1,204)
Purchase of common stock, shares	(22)
Stock- based compensation	5,625
Tax benefit from equity incentive plans	310
Cash dividends paid -- $.24, $.24 and $.24 per share of common stock for year ended September 2014, 2013 and 2012, respectively		(6,429)
Balance at Sep. 30, 2014	$ 20,669	$ 803,059	$ (5,372)	$ (36,078)	$ 223	$ 782,501
Balance (in shares) at Sep. 30, 2014	26,789