Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2015	Sep. 30, 2014
CURRENT ASSETS:
Cash and cash equivalents	$ 717,977	$ 360,909
Short-term Investments	45,543
Accounts receivable, less reserve of $6,181 in 2015 and $4,597 in 2014	449,344	705,214
Inventories	128,729	106,241
Deferred income taxes	17,200	16,519
Prepaid expenses and other	72,117	80,912
Current assets of discontinued operations	8,097	7,206
Total current assets	1,439,007	1,277,001
INVESTMENTS	104,354	236,644
PROPERTY, PLANT AND EQUIPMENT, at cost:
Contract drilling equipment	7,985,052	7,191,281
Construction in progress	95,518	288,877
Real estate properties	65,466	64,812
Other	457,614	354,853
PROPERTY, PLANT AND EQUIPMENT, gross	8,603,650	7,899,823
Less-Accumulated depreciation	3,036,415	2,711,279
Net property, plant and equipment	5,567,235	5,188,544
NONCURRENT ASSETS:
Other assets	41,416	18,809
TOTAL ASSETS	7,152,012	6,720,998
CURRENT LIABILITIES:
Accounts payable	110,704	182,031
Accrued liabilities	198,053	282,278
Long-term debt due within one year	39,094	39,635
Current liabilities of discontinued operations	3,377	3,217
Total current liabilities	351,228	507,161
NONCURRENT LIABILITIES:
Long-term debt	492,443	39,502
Deferred income taxes	1,295,065	1,215,259
Other	111,104	64,110
Noncurrent liabilities of discontinued operations	4,720	3,989
Total noncurrent liabilities	1,903,332	1,322,860
SHAREHOLDERS' EQUITY:
Common stock, $.10 par value, 160,000,000 shares authorized, 110,987,546 and 110,508,605 shares issued as of September 30, 2015 and 2014, respectively, and 107,767,915 and 108,232,284 shares outstanding as of September 30, 2015 and 2014, respectively	$ 11,099	$ 11,051
Preferred stock, no par value, 1,000,000 shares authorized, no shares issued
Additional paid-in capital	$ 420,141	$ 383,972
Retained earnings	4,649,952	4,525,797
Accumulated other comprehensive income (loss)	(1,377)	83,126
Total shareholders' equity before treasury stock	5,079,815	5,003,946
Less treasury stock, 3,219,631 shares in 2015 and 2,276,321 shares in 2014, at cost	182,363	112,969
Total shareholders' equity	4,897,452	4,890,977
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 7,152,012	$ 6,720,998

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).