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UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Jun. 30, 2023
Sep. 30, 2022
Current Assets:    
Cash and cash equivalents $ 220,609 $ 232,131
Restricted cash 61,364 36,246
Short-term investments 72,609 117,101
Accounts receivable, net of allowance of $4,983 and $2,975, respectively 449,588 458,713
Inventories of materials and supplies, net 101,299 87,957
Prepaid expenses and other, net 86,371 66,463
Assets held-for-sale 988 4,333
Total current assets 992,828 1,002,944
Investments 246,059 218,981
Property, plant and equipment, net 2,932,593 2,960,809
Other Noncurrent Assets:    
Goodwill 45,653 45,653
Intangible assets, net 62,183 67,154
Operating lease right-of-use assets 36,972 39,064
Other assets, net 24,528 20,926
Total other noncurrent assets 169,336 172,797
Total assets 4,340,816 4,355,531
Current Liabilities:    
Accounts payable 151,671 126,966
Dividends payable 48,878 26,693
Accrued liabilities 232,947 241,151
Total current liabilities 433,496 394,810
Noncurrent Liabilities:    
Long-term debt, net 544,996 542,610
Deferred income taxes 541,424 537,712
Other 112,819 114,927
Total noncurrent liabilities 1,199,239 1,195,249
Commitments and Contingencies (Note 12)
Shareholders' Equity:    
Common stock, $0.10 par value, 160,000,000 shares authorized, 112,222,865 shares issued as of June 30, 2023 and September 30, 2022, and 99,426,526 and 105,293,662 shares outstanding as of June 30, 2023 and September 30, 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 517,259 528,278
Retained earnings 2,655,287 2,473,572
Accumulated other comprehensive loss (11,305) (12,072)
Treasury stock, at cost, 12,796,339 shares and 6,929,203 shares as of June 30, 2023 and September 30, 2022, respectively (464,382) (235,528)
Total shareholders’ equity 2,708,081 2,765,472
Total liabilities and shareholders' equity $ 4,340,816 $ 4,355,531