CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Sep. 30, 2012
Current assets:
Cash and cash equivalents	$ 188,354	$ 178,459
Accounts receivable, less allowance for doubtful accounts of $4,061 at March 31, 2013, and $4,757 at September 30, 2012	51,220	53,506
Inventories	66,075	66,472
Prepaid expenses and other current assets	13,546	12,608
Deferred income taxes	6,851	6,843
Total current assets	326,046	317,888
Property, plant and equipment, net	112,632	125,020
Goodwill	43,916	44,620
Other intangible assets, net	11,025	12,473
Deferred income taxes	4,500	5,879
Other long-term assets	12,733	11,945
Total assets	510,852	517,825
Current liabilities:
Accounts payable	13,913	19,542
Current portion of long-term debt	10,938	10,937
Capital lease obligations	0	2
Accrued expenses, income taxes payable and other current liabilities	29,411	32,738
Total current liabilities	54,262	63,219
Long-term debt, net of current portion	157,500	161,875
Deferred income taxes	1,661	2,017
Capital lease obligations, net of current portion	0	19
Other long-term liabilities	7,286	7,104
Total liabilities	220,709	234,234
Stockholders' equity:
Common Stock: Authorized: 200,000,000 shares, $0.001 par value; Issued: 29,590,023 shares at March 31, 2013, and 28,864,527 shares at September 30, 2012	30	29
Capital in excess of par value of common stock	350,251	329,782
Retained earnings	148,564	129,441
Accumulated other comprehensive income	18,715	30,466
Treasury stock at cost, 6,319,094 shares at March 31, 2013, and 5,682,288 shares at September 30, 2012	(227,417)	(206,127)
Total stockholders' equity	290,143	283,591
Total liabilities and stockholders' equity	$ 510,852	$ 517,825