CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Sep. 30, 2011
Current assets:
Cash and cash equivalents	$ 178,459	$ 302,546
Accounts receivable, less allowance for doubtful accounts of $4,757 at September 30, 2012, and $1,090 at September 30, 2011	53,506	52,747
Inventories	66,472	56,128
Prepaid expenses and other current assets	12,608	14,735
Deferred income taxes	6,843	4,249
Total current assets	317,888	430,405
Property, plant and equipment, net	125,020	130,791
Goodwill	44,620	41,148
Other intangible assets, net	12,473	14,651
Deferred income taxes	5,879	862
Other long-term assets	11,945	10,372
Total assets	517,825	628,229
Current liabilities:
Accounts payable	19,542	22,436
Current portion of long-term debt	10,937	0
Capital lease obligations	2	10
Accrued expenses, income taxes payable and other current liabilities	32,738	33,104
Total current liabilities	63,219	55,550
Long-term debt, net of current portion	161,875	0
Deferred income taxes	2,017	0
Capital lease obligations, net of current portion	19	2
Other long-term liabilities	7,104	6,323
Total liabilities	234,234	61,875
Commitments and contingencies (Note 16)
Stockholders' equity:
Common Stock: Authorized: 200,000,000 shares, $0.001 par value; Issued: 28,864,527 shares at September 30, 2012, and 27,652,336 shares at September 30, 2011	29	28
Capital in excess of par value of common stock	329,782	278,360
Retained earnings	129,441	435,429
Accumulated other comprehensive income	30,466	24,127
Treasury stock at cost, 5,682,288 shares at September 30, 2012, and 4,715,577 shares at September 30, 2011	(206,127)	(171,590)
Total stockholders' equity	283,591	566,354
Total liabilities and stockholders' equity	$ 517,825	$ 628,229