CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities:
Net income	$ 19,123	$ 15,945
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	10,638	11,868
Provision for doubtful accounts	36	3,820
Share-based compensation expense	7,303	7,419
Deferred income tax expense (benefit)	4,061	(1,449)
Non-cash foreign exchange loss	3,653	1,233
Loss on disposal of property, plant and equipment	44	189
Impairment of property, plant and equipment	38	51
Other	(2,279)	(949)
Changes in operating assets and liabilities:
Accounts receivable	(1,952)	(3,297)
Inventories	(3,284)	(1,745)
Prepaid expenses and other assets	(3,485)	2,856
Accounts payable	(3,817)	(4,147)
Accrued expenses, income taxes payable and other liabilities	90	(10,501)
Net cash provided by operating activities	30,169	21,293
Cash flows from investing activities:
Additions to property, plant and equipment	(5,546)	(11,641)
Proceeds from the sale of property, plant and equipment	14	0
Proceeds from the sale of investments	25	50
Net cash used in investing activities	(5,507)	(11,591)
Cash flows from financing activities:
Dividends paid	0	(347,140)
Issuance of long-term debt	0	175,000
Repayment of long-term debt	(4,375)	0
Repurchases of common stock	(21,290)	(14,534)
Net proceeds from issuance of stock	13,159	29,034
Tax benefits associated with share-based compensation expense	707	617
Principal payments under capital lease obligations	(21)	(5)
Net cash used in financing activities	(11,820)	(157,028)
Effect of exchange rate changes on cash	(2,947)	(158)
Increase (decrease) in cash and cash equivalents	9,895	(147,484)
Cash and cash equivalents at beginning of period	178,459	302,546
Cash and cash equivalents at end of period	188,354	155,062
Supplemental disclosure of non-cash investing and financing activities:
Purchases of property, plant and equipment in accrued liabilities and accounts payable at the end of the period	1,171	2,385
Issuance of restricted stock	$ 5,926	$ 6,198