UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2026	Sep. 30, 2025
Current Assets:
Cash and cash equivalents	$ 204,427	$ 196,848
Restricted cash	33,552	27,412
Short-term investments	26,960	21,496
Accounts receivable, net of allowance of $21,162 and $19,647, respectively	869,464	782,644
Inventories of materials and supplies, net	325,803	324,326
Prepaid expenses and other, net	97,592	97,518
Assets held-for-sale	12,659	15,231
Total current assets	1,570,457	1,465,475
Investments, net	72,856	68,198
Property, plant and equipment, net	3,865,332	4,313,074
Other Noncurrent Assets:
Goodwill	182,425	182,854
Intangible assets, net	423,633	485,540
Operating lease right-of-use assets	109,250	123,598
Other assets, net	62,821	66,999
Total other noncurrent assets	778,129	858,991
Total assets	6,286,774	6,705,738
Current Liabilities:
Accounts payable	207,365	217,923
Dividends payable	25,416	25,199
Accrued liabilities	560,850	564,855
Current portion of long-term debt, net	6,859	6,859
Total current liabilities	800,490	814,836
Noncurrent Liabilities:
Long-term debt, net	1,855,257	2,057,084
Deferred income taxes	592,397	624,000
Retirement benefit obligations	98,815	109,864
Other	269,406	270,616
Total noncurrent liabilities	2,815,875	3,061,564
Commitments and Contingencies (Note 11)
Shareholders' Equity:
Common stock, $0.10 par value, 160,000,000 shares authorized, 112,222,865 shares issued as of June 30, 2026 and September 30, 2025, and 99,935,617 and 99,446,577 shares outstanding as of June 30, 2026 and September 30, 2025, respectively	11,222	11,222
Preferred stock, no par value, 1,000,000 shares authorized, no shares issued	0	0
Additional paid-in capital	514,167	513,050
Retained earnings	2,463,057	2,619,090
Accumulated other comprehensive income	30,233	44,964
Treasury stock, at cost,12,287,248 shares and 12,776,288 shares as of June 30, 2026 and September 30, 2025, respectively	(444,588)	(463,536)
Non-controlling interest	96,318	104,548
Total shareholders’ equity	2,670,409	2,829,338
Total liabilities and shareholders' equity	$ 6,286,774	$ 6,705,738

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).