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Condensed Consolidated Balance Sheets - USD ($)
$ in Thousands
Jun. 30, 2021
Sep. 30, 2020
Current Assets:    
Cash and cash equivalents $ 370,553 $ 487,884
Short-term investments 187,256 89,335
Accounts receivable, net of allowance of $1,885 and $1,820, respectively 233,632 192,623
Inventories of materials and supplies, net 90,537 104,180
Prepaid expenses and other, net 91,477 89,305
Assets held-for-sale 10,088 0
Total current assets 983,543 963,327
Investments 36,886 31,585
Property, plant and equipment, net 3,281,082 3,646,341
Other Noncurrent Assets:    
Goodwill 45,653 45,653
Intangible assets, net 75,634 81,027
Operating lease right-of-use asset 53,116 44,583
Other assets, net 19,371 17,105
Total other noncurrent assets 193,774 188,368
Total assets 4,495,285 4,829,621
Current Liabilities:    
Accounts payable 64,193 36,468
Dividends payable 27,324 27,226
Accrued liabilities 173,784 155,442
Total current liabilities 265,301 219,136
Noncurrent Liabilities:    
Long-term debt, net 481,002 480,727
Deferred income taxes 584,633 650,675
Other 154,049 147,180
Noncurrent liabilities - discontinued operations 2,393 13,389
Total noncurrent liabilities 1,222,077 1,291,971
Commitments and Contingencies (Note 13)
Shareholders' Equity:    
Common stock, $.10 par value, 160,000,000 shares authorized, 112,222,865 and 112,151,563 shares issued as of June 30, 2021 and September 30, 2020, respectively, and 107,898,782 and 107,488,242 shares outstanding as of June 30, 2021 and September 30, 2020, respectively 11,222 11,215
Preferred stock, no par value, 1,000,000 shares authorized, no shares issued 0 0
Additional paid-in capital 523,281 521,628
Retained earnings 2,679,859 3,010,012
Accumulated other comprehensive loss (24,814) (26,188)
Treasury stock, at cost, 4,324,083 shares and 4,663,321 shares as of June 30, 2021 and September 30, 2020, respectively (181,641) (198,153)
Total shareholders’ equity 3,007,907 3,318,514
Total liabilities and shareholders' equity $ 4,495,285 $ 4,829,621