CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
CURRENT ASSETS:
Cash and cash equivalents	$ 290,481	$ 339,154
Receivables - trade and other	508,338	545,204
Prepaid expenses and other current assets	37,529	29,253
Deferred tax assets - net	0	27,485
Total current assets	836,348	941,096
PROPERTY, PLANT AND EQUIPMENT:
Drilling equipment	8,893,342	7,639,171
Construction in progress	0	1,023,646
Other property and equipment	140,086	137,365
Property, plant and equipment - gross	9,033,428	8,800,182
Less accumulated depreciation and amortization	1,564,710	1,367,970
Property, plant and equipment - net	7,468,718	7,432,212
Other assets	36,609	37,884
TOTAL ASSETS	8,341,675	8,411,192
CURRENT LIABILITIES:
Accounts payable - trade	118,976	102,773
Deferred revenues	48,204	36,189
Accrued liabilities	151,491	194,259
Total current liabilities	318,671	333,221
Long-term debt	2,806,686	2,807,324
Other liabilities	380,558	368,266
Deferred income taxes - net	$ 190,822	$ 210,982
Commitments and contingent liabilities (Note 4)
SHAREHOLDERS' EQUITY:
Class A Ordinary Shares, $0.125 par value, 125,947,424 and 124,828,807 shares issued at September 30, 2015, and December 31, 2014, respectively	$ 15,743	$ 15,604
Additional paid-in capital	1,453,024	1,436,910
Retained earnings	3,398,078	3,466,993
Cost of 1,140,567 and 264,903 treasury shares at September 30, 2015, and December 31, 2014, respectively	(12,044)	(7,990)
Accumulated other comprehensive loss	(209,863)	(220,118)
Total shareholders' equity	4,644,938	4,691,399
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 8,341,675	$ 8,411,192