CONSOLIDATED CONDENSED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2017	Sep. 30, 2016
CURRENT ASSETS:
Cash and cash equivalents	$ 741,746	$ 905,561
Short-term investments	48,012	44,148
Accounts receivable, less reserve of $6,397 in March 31, 2017 and $2,696 in September 30, 2016	345,546	375,169
Inventories	131,679	124,325
Prepaid expenses and other	70,067	78,067
Assets held for sale	26,801	45,352
Current assets of discontinued operations	36	64
Total current assets	1,363,887	1,572,686
INVESTMENTS	88,299	84,955
PROPERTY, PLANT AND EQUIPMENT, at cost	5,061,368	5,144,733
Other assets	24,630	29,645
TOTAL ASSETS	6,538,184	6,832,019
CURRENT LIABILITIES:
Accounts payable	127,116	95,422
Accrued liabilities	174,261	234,639
Current liabilities of discontinued operations	40	59
Total current liabilities	301,417	330,120
NONCURRENT LIABILITIES:
Long-term debt less unamortized discount and debt issuance costs	492,373	491,847
Deferred income taxes	1,308,794	1,342,456
Other	83,552	102,781
Noncurrent liabilities of discontinued operations	4,654	3,890
Total noncurrent liabilities	1,889,373	1,940,974
SHAREHOLDERS' EQUITY:
Common stock, $.10 par value, 160,000,000 shares authorized, 111,882,076 shares and 111,400,339 shares issued as of March 31, 2017 and September 30, 2016 respectively and 108,566,124 shares and 108,077,916 shares outstanding as of March 31, 2017 and September 30, 2016 respectively	11,188	11,140
Preferred stock, no par value, 1,000,000 shares authorized, no shares issued
Additional paid-in capital	470,918	448,452
Retained earnings	4,052,974	4,289,807
Accumulated other comprehensive income (loss)	2,433	(204)
Total shareholders' equity before treasury stock	4,537,513	4,749,195
Treasury stock, at cost	(190,119)	(188,270)
Total shareholders' equity	4,347,394	4,560,925
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 6,538,184	$ 6,832,019

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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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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).