Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2011
Cash flows provided by operating activities:
Net income	$ 5,696	[1]	$ 20,100	[1]	$ 25,208	[1]
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	14,924	[1]	11,631	[1]	7,991	[1]
Goodwill impairment charge	22,700	[1]
(Gain) loss on sale, disposal and abandonment of assets	(32)	[1]	3,455	[1]	89	[1]
Equity in income of joint ventures	(3,881)	[1]	(3,181)	[1]	(2,191)	[1]
Dividends from joint ventures	1,891	[1]	1,393	[1]	911	[1]
Stock-based compensation and related net tax benefits	2,541	[1]	2,413	[1]	1,435	[1]
Current and long-term deferred taxes, net	(5,858)	[1]	2,833	[1]	1,687	[1]
Changes in operating assets and liabilities:
Increase in accounts receivable, net	(3,113)	[1]	(7,636)	[1]	(1,855)	[1]
(Increase) decrease in prepaid taxes	(985)	[1]	2,774	[1]	514	[1]
Increase in other operating assets, net	(4,036)	[1]	(1,925)	[1]	(3,984)	[1]
(Decrease) increase in accounts payable and other accrued liabilities	(596)	[1]	3,305	[1]	169	[1]
(Decrease) increase in other operating liabilities, net	(3,501)	[1]	1,678	[1]	1,755	[1]
Net cash provided by operating activities	25,750	[1]	36,840	[1]	31,729	[1]
Cash flows used by investing activities:
Acquisition of property, plant & equipment	(9,145)	[1]	(14,519)	[1]	(13,415)	[1]
Acquisition of joint ventures and businesses, net of cash acquired			(110,057)	[1]	(2,847)	[1]
Other investing activities, net	(2,151)	[1]	(880)	[1]	(1,579)	[1]
Net cash used by investing activities	(11,296)	[1]	(125,456)	[1]	(17,841)	[1]
Cash flows (used) provided by financing activities:
Net borrowings on revolving credit facility	(19)	[1]	(19,803)	[1]	7,313	[1]
Long–term borrowings – loan	27,691	[1]	144,797	[1]
Long-term borrowings - repayment	(27,187)	[1]	(5,300)	[1]
Dividends paid to stockholders	(20,897)	[1]	(20,808)	[1]	(20,593)	[1]
Other financing activities, net	(261)	[1]	(210)	[1]	(155)	[1]
Net cash (used) provided by financing activities	(20,673)	[1]	98,676	[1]	(13,435)	[1]
Effects of foreign currency translation	(230)	[1]	(341)	[1]	(198)	[1]
Net (decrease) increase in cash and cash equivalents	(6,449)	[1]	9,719	[1]	255	[1]
Opening balance - cash and cash equivalents	17,633	[1]	7,914	[1]	7,659	[1]
Ending balance - cash and cash equivalents	11,184	[1]	17,633	[1]	7,914	[1]
Supplemental disclosure of cash flow information:
Accrued capital spending included in accounts payable and other accrued liabilities	347	[1]	3,140	[1]	2,463	[1]
Cash paid for interest, net of amounts capitalized	4,441	[1]	3,582	[1]	436	[1]
Cash paid for income taxes	$ 7,374	[1]	$ 2,050	[1]	$ 8,011	[1]

[1] Restated