Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Cash flows from operating activities:
Net income	$ 12,324	$ 14,119
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	5,030	3,604
Equity in income of joint ventures	(1,871)	(1,126)
Dividends from joint ventures	1,393	911
Stock-based compensation and related net tax benefits	1,641	1,027
Current and long-term deferred taxes, net	1,753	(118)
Increase in accounts receivable, net	(2,886)	(4,201)
Decrease in prepaid taxes	3,994	4,677
Other operating assets, net	(1,879)	(1,995)
Decrease in accounts payable and other accrued liabilities	(2,009)	(1,198)
Other operating liabilities, net	1,068	1,164
Net cash provided by operating activities	18,558	16,864
Cash flows used by investing activities:
Acquisition of property, plant and equipment	(7,358)	(5,653)
Acquisition of joint ventures and businesses, net of cash acquired	(98,297)	(1,550)
Purchase of investment securities	(598)	(1,833)
Other investing activities, net	(198)	0
Net cash used by investing activities	(106,451)	(9,036)
Cash flows provided (used) by financing activities:
Net borrowings on revolving credit facility	(19,805)	5,828
Long-term borrowings - loan	132,887	0
Long-term borrowings - repayment	(3,800)	0
Dividends paid to stockholders	(10,408)	(15,410)
Other financing activities, net	(277)	(120)
Net cash provided (used) by financing activities	98,597	(9,702)
Effects of foreign currency translation	81	474
Net increase (decrease) in cash and cash equivalents	10,785	(1,400)
Opening balance - cash and cash equivalents	7,914	7,659
Ending balance - cash and cash equivalents	$ 18,699	$ 6,259