Condensed Consolidated Statement of Changes in Stockholders' Equity (USD $) In Thousands	Common Stock [Member]	Capital in Excess of Par Value [Member]	Retained Earnings (Accumulated Deficit) [Member]	Other [Member]	Total
Balances at Sep. 30, 2010	$ 60	$ 633,171	$ (350,940)	$ (350)	$ 281,941
Balances, shares at Sep. 30, 2010	60,490
Issuance of restricted stock, net of cancellations	0				0
Issuance of restricted stock, net of cancellations, shares	190
Issuance of common stock pursuant to employee stock purchase plan	1	545			546
Issuance of common stock pursuant to employee stock purchase plan, shares	157
Exercise of stock appreciation rights	0				0
Exercise of stock appreciation rights, shares	21
Stock-based compensation		2,984			2,984
Other comprehensive income, net of taxes - cash flow hedge				270	270
Net loss for the nine months ended June 30, 2011			(183,189)		(183,189)
Balances at Jun. 30, 2011	$ 61	$ 636,700	$ (534,129)	$ (80)	$ 102,552
Balances, shares at Jun. 30, 2011	60,858