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Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Condensed Consolidated Statements of Cash Flows
Net cash provided by operating activities	$ 140,954	$ 56,718
Cash flows from investing activities:
Payments for purchase of property, plant, and equipment	(54,341)	(58,478)
Proceeds from sale of assets	271	1,198
Proceeds from sales of short-term investments	10,259	8,970
Payments for purchases of short-term investments	(970)	(808)
Net cash used in investing activities	(44,781)	(49,118)
Cash flows from financing activities:
Cash dividends paid	(18,914)	(16,422)
Proceeds from sales of treasury stock	24,150	3,560
Payments for repurchases of common stock	(39,049)
Borrowings on revolving lines of credit and short-term borrowings	865,617	809,680
Payments on revolving lines of credit and short-term borrowings	(844,262)	(800,350)
Payments of long-term debt and capital lease obligations	(100,265)	(210)
Net cash used in financing activities	(112,723)	(3,742)
Effect of exchange rate changes on cash and cash equivalents	(1,741)	8,737
Net change in cash and cash equivalents	(18,291)	12,595
Cash and cash equivalents at beginning of year	83,594	87,552
Cash and cash equivalents, including restricted cash, at end of period	$ 65,303	$ 100,147

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