CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2020	Sep. 30, 2019
Current assets:
Cash and cash equivalents	$ 340,702	$ 188,495
Accounts receivable, less allowance for doubtful accounts of $2,718 at March 31, 2020 and $2,377 at September 30, 2019	151,959	146,113
Inventories	157,872	145,278
Prepaid expenses and other current assets	25,768	28,670
Total current assets	676,301	508,556
Property, plant and equipment, net	320,846	276,818
Goodwill	709,823	710,071
Other intangible assets, net	708,659	754,044
Deferred income taxes	6,607	6,566
Other long-term assets	37,724	5,711
Total assets	2,459,960	2,261,766
Current liabilities:
Accounts payable	58,803	54,529
Short-term debt	150,000	0
Current portion of long-term debt	10,650	13,313
Accrued expenses, income taxes payable and other current liabilities	109,389	103,618
Total current liabilities	328,842	171,460
Long-term debt, net of current portion, less prepaid debt issuance costs of $16,420 at March 31, 2020 and $17,900 at September 30, 2019	914,617	928,463
Deferred income taxes	112,780	121,993
Other long-term liabilities	94,311	59,473
Total liabilities	1,450,550	1,281,389
Commitments and contingencies (Note 13)
Stockholders’ equity:
Common Stock Authorized: 200,000,000 shares, $0.001 par value; Issued: 39,854,529 shares at March 31, 2020, and 39,592,468 shares at September 30, 2019	40	40
Capital in excess of par value of common stock	1,008,311	988,980
Retained earnings	508,126	461,501
Accumulated other comprehensive income (loss)	(40,648)	(23,238)
Treasury stock at cost, 10,672,652 shares at March 31, 2020, and 10,491,252 shares at September 30, 2019	(466,419)	(446,906)
Total stockholders’ equity	1,009,410	980,377
Total liabilities and stockholders’ equity	$ 2,459,960	$ 2,261,766