Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Current assets:
Cash and cash equivalents, including restricted cash of $907 and $1,907, respectively	$ 426,982	$ 448,462
Accounts receivable, less allowance for uncollectible amounts of $3,309 and $3,664, respectively	506,216	523,051
Inventories	451,834	419,971
Income taxes receivable	8,928	12,071
Other current assets	52,771	61,168
Total current assets	1,446,731	1,464,723
Property, plant and equipment, net	934,403	950,569
Goodwill	800,022	805,333
Intangible assets, net	538,782	559,289
Deferred income tax assets	13,970	14,066
Other assets	301,332	297,024
Total assets	4,035,240	4,091,004
Current liabilities:
Current portion of long-term debt	424	728
Accounts payable	165,867	170,909
Income taxes payable	17,004	11,481
Accrued liabilities	146,213	183,139
Total current liabilities	329,508	366,257
Long-term debt, less current portion	729,826	734,122
Deferred income tax liabilities	156,169	157,936
Other liabilities	596,305	617,908
Total liabilities	1,811,808	1,876,223
Commitments and contingencies (Note 21)
Stockholders' equity:
Preferred stock, par value $0.003 per share, 10,000 shares authorized, no shares issued
Common stock, par value $0.001455 per share, 150,000 shares authorized, 72,960 shares issued	106	106
Additional paid-in capital	274,366	261,735
Accumulated other comprehensive losses	(65,404)	(65,619)
Deferred compensation	7,960	7,949
Retained earnings	2,620,571	2,600,513
Stockholders' equity	2,837,599	2,804,684
Treasury stock at cost, 9,877 shares and 9,702 shares, respectively	(606,207)	(581,954)
Treasury stock held for deferred compensation, at cost, 167 shares, respectively	(7,960)	(7,949)
Total stockholders' equity	2,223,432	2,214,781
Total liabilities and stockholders' equity	$ 4,035,240	$ 4,091,004