CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2022	Sep. 30, 2021
Current Assets:
Cash and cash equivalents	$ 232,131	$ 917,534
Restricted cash	36,246	18,350
Short-term investments	117,101	198,700
Accounts receivable, net of allowance of $2,975 and $2,068, respectively	458,713	228,894
Inventories of materials and supplies, net	87,957	84,057
Prepaid expenses and other, net	66,463	67,578
Assets held-for-sale	4,333	71,453
Total current assets	1,002,944	1,586,566
Investments	218,981	135,444
Property, plant and equipment, net	2,960,809	3,127,287
Other Noncurrent Assets:
Goodwill	45,653	45,653
Intangible assets, net	67,154	73,838
Operating lease right-of-use assets	39,064	49,187
Other assets, net	20,926	16,153
Total other noncurrent assets	172,797	184,831
Total assets	4,355,531	5,034,128
Current Liabilities:
Accounts payable	126,966	71,996
Dividends payable	26,693	27,332
Current portion of long-term debt, net	0	483,486
Accrued liabilities	241,151	283,492
Total current liabilities	394,810	866,306
Noncurrent Liabilities:
Long-term debt, net	542,610	541,997
Deferred income taxes	537,712	563,437
Other	113,387	147,757
Noncurrent liabilities - discontinued operations	1,540	2,013
Total noncurrent liabilities	1,195,249	1,255,204
Commitments and Contingencies (Note 16)
Shareholders' Equity:
Common stock, $0.10 par value, 160,000,000 shares authorized, 112,222,865 shares issued as of September 30, 2022 and 2021, and 105,293,662 and 107,898,859 shares outstanding as of September 30, 2022 and 2021, respectively	11,222	11,222
Preferred stock, no par value, 1,000,000 shares authorized, no shares issued	0	0
Additional paid-in capital	528,278	529,903
Retained earnings	2,473,572	2,573,375
Accumulated other comprehensive loss	(12,072)	(20,244)
Treasury stock, at cost, 6,929,203 shares and 4,324,006 shares as of September 30, 2022 and 2021, respectively	(235,528)	(181,638)
Total shareholders’ equity	2,765,472	2,912,618
Total liabilities and shareholders' equity	$ 4,355,531	$ 5,034,128
Common stock, shares issued (in shares)	112,222,865	112,222,865

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).