CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2020	Sep. 30, 2019
Current assets:
Cash and cash equivalents	$ 354,708	$ 188,495
Accounts receivable, less allowance for doubtful accounts of $2,404 at June 30, 2020 and $2,377 at September 30, 2019	137,736	146,113
Inventories	161,805	145,278
Prepaid expenses and other current assets	24,623	28,670
Total current assets	678,872	508,556
Property, plant and equipment, net	356,022	276,818
Goodwill	713,880	710,071
Other intangible assets, net	690,417	754,044
Deferred income taxes	6,686	6,566
Other long-term assets	39,496	5,711
Total assets	2,485,373	2,261,766
Current liabilities:
Accounts payable	50,211	54,529
Short-term debt	150,000	0
Current portion of long-term debt	13,313	13,313
Accrued expenses, income taxes payable and other current liabilities	126,399	103,618
Total current liabilities	339,923	171,460
Long-term debt, net of current portion, less prepaid debt issuance costs of $15,684 at June 30, 2020 and $17,900 at September 30, 2019	912,691	928,463
Deferred income taxes	110,930	121,993
Other long-term liabilities	96,795	59,473
Total liabilities	1,460,339	1,281,389
Commitments and contingencies (Note 13)
Stockholders’ equity:
Common Stock Authorized: 200,000 shares, $0.001 par value; Issued: 39,867 shares at June 30, 2020, and 39,592 shares at September 30, 2019	40	40
Capital in excess of par value of common stock	1,012,131	988,980
Retained earnings	529,786	461,501
Accumulated other comprehensive income (loss)	(31,896)	(23,238)
Treasury stock at cost, 10,833 shares at June 30, 2020, and 10,491 shares at September 30, 2019	(485,027)	(446,906)
Total stockholders’ equity	1,025,034	980,377
Total liabilities and stockholders’ equity	$ 2,485,373	$ 2,261,766