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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Sep. 30, 2023
Sep. 30, 2022
Current Assets:    
Cash and cash equivalents $ 257,174 $ 232,131
Restricted cash 59,064 36,246
Short-term investments 93,600 117,101
Accounts receivable, net of allowance of $2,688 and $2,975, respectively 404,188 458,713
Inventories of materials and supplies, net 94,227 87,957
Prepaid expenses and other, net 97,727 66,463
Assets held-for-sale 645 4,333
Total current assets 1,006,625 1,002,944
Investments 264,947 218,981
Property, plant and equipment, net 2,921,695 2,960,809
Other Noncurrent Assets:    
Goodwill 45,653 45,653
Intangible assets, net 60,575 67,154
Operating lease right-of-use assets 50,400 39,064
Other assets, net 32,061 20,926
Total other noncurrent assets 188,689 172,797
Total assets 4,381,956 4,355,531
Current Liabilities:    
Accounts payable 130,852 126,966
Dividends payable 25,194 26,693
Accrued liabilities 262,885 241,151
Total current liabilities 418,931 394,810
Noncurrent Liabilities:    
Long-term debt, net 545,144 542,610
Deferred income taxes 517,809 537,712
Other 128,129 114,927
Total noncurrent liabilities 1,191,082 1,195,249
Commitments and Contingencies (Note 15)
Shareholders' Equity:    
Common stock, $0.10 par value, 160,000,000 shares authorized, 112,222,865 shares issued as of September 30, 2023 and 2022, and 99,426,526 and 105,293,662 shares outstanding as of September 30, 2023 and 2022, respectively 11,222 11,222
Preferred stock, no par value, 1,000,000 shares authorized, no shares issued 0 0
Additional paid-in capital 525,369 528,278
Retained earnings 2,707,715 2,473,572
Accumulated other comprehensive loss (7,981) (12,072)
Treasury stock, at cost, 12,796,339 shares and 6,929,203 shares as of September 30, 2023 and 2022, respectively (464,382) (235,528)
Total shareholders’ equity 2,771,943 2,765,472
Total liabilities and shareholders' equity $ 4,381,956 $ 4,355,531