Earning Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2012	Mar. 31, 2011
Numerator:
Numerator for basic and diluted earnings per share from continuing operations - loss from continuing operations	$ (18,228)	$ (113,872)	$ (31,508)	$ (132,630)
Loss from discontinued operations, net of income taxes	(2,330)	(42,282)	(12,798)	(44,211)
Net loss	$ (20,558)	$ (156,154)	$ (44,306)	$ (176,841)
Denominator:
Denominator for basic and diluted earnings per share - weighted-average shares outstanding (in shares)	60,881	60,423	60,841	60,375
Basic and diluted loss per share from continuing operations (in dollars per share)	$ (0.30)	$ (1.88)	$ (0.52)	$ (2.20)
Basic and diluted loss per share from discontinued operations (in dollars per share)	$ (0.04)	$ (0.70)	$ (0.21)	$ (0.73)
Earnings (loss) per share, basic and diluted, total (in dollars per share)	$ (0.34)	$ (2.58)	$ (0.73)	$ (2.93)
SARs
Statement
Anti-dilutive securities not considered in diluted EPS calculation (in shares)	3,969	2,352	4,027	2,773
Stock Options
Statement
Anti-dilutive securities not considered in diluted EPS calculation (in shares)	1,398	1,789	1,451	1,791
Restricted Stock
Statement
Anti-dilutive securities not considered in diluted EPS calculation (in shares)	0	0	83	105