CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Revenue:
Light building products	$ 76,688	$ 73,334
Heavy construction materials	68,158	63,138
Energy technology	4,727	955
Total revenue	149,573	137,427
Cost of revenue:
Light building products	56,501	55,330
Heavy construction materials	53,584	47,098
Energy technology	2,243	557
Total cost of revenue	112,328	102,985
Gross profit	37,245	34,442
Operating expenses:
Amortization	4,936	5,505
Research and development	1,606	1,854
Selling, general and administrative	24,671	21,282
Restructuring costs	0	1,388
Total operating expenses	31,213	30,029
Operating income (loss)	6,032	4,413
Other income (expense):
Net interest expense	(10,472)	(12,456)
Other, net	36	(4,137)
Total other income (expense), net	(10,436)	(16,593)
Loss from continuing operations before income taxes	(4,404)	(12,180)
Income tax benefit (provision)	530	(1,100)
Loss from continuing operations	(3,874)	(13,280)
Loss from discontinued operations, net of income taxes	(1,998)	(10,468)
Net loss	$ (5,872)	$ (23,748)
Basic and diluted loss per share:
From continuing operations (in dollars per share)	$ (0.06)	$ (0.22)
From discontinued operations (in dollars per share)	$ (0.03)	$ (0.17)
Loss per share, basic and diluted, total (in dollars per share)	$ (0.09)	$ (0.39)