CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Thousands, except Share data	Total	Common Stock	Paid-In Capital	Retained Earnings
Beginning Balance at Oct. 31, 2009	$ 430,708	$ 20,904	$ 34,573	$ 375,231
Beginning Balance (in shares) at Oct. 31, 2009		20,903,544
Net loss (income) for the year	134,820			134,820
Cash dividends ($.62 per share)	(13,996)			(13,996)
Secondary offering of common stock (in shares)		2,300,000
Secondary offering of common stock	115,098	2,300	112,798
Purchase and retirement of common stock (in shares)		(664,688)
Purchase and retirement of common stock	(28,373)	(665)	(27,708)
Issuance of stock under stock compensation plans (in shares)		115,824
Issuance of stock under stock compensation plans	(62)	116	(178)
Amortization of unearned compensation	7,518		7,518
Ending Balance at Oct. 31, 2010	645,713	22,655	127,003	496,055
Ending Balance (in shares) at Oct. 31, 2010		22,654,680
Net loss (income) for the year	(127,077)			(127,077)
Cash dividends ($.62 per share)	(15,478)			(15,478)
Issuance of stock under stock compensation plans (in shares)		216,908
Issuance of stock under stock compensation plans	(1,761)	217	(1,978)
Amortization of unearned compensation	5,503		5,503
Ending Balance at Oct. 31, 2011	506,900	22,872	130,528	353,500
Ending Balance (in shares) at Oct. 31, 2011		22,871,588
Net loss (income) for the year	53,944			53,944
Cash dividends ($.62 per share)	(15,621)			(15,621)
Issuance of stock under stock compensation plans (in shares)		97,244
Issuance of stock under stock compensation plans	71	97	(26)
Amortization of unearned compensation	4,781		4,781
Ending Balance at Oct. 31, 2012	$ 550,075	$ 22,969	$ 135,283	$ 391,823
Ending Balance (in shares) at Oct. 31, 2012		22,968,832