CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
CURRENT ASSETS:
Cash and cash equivalents	$ 56,792	$ 339,154
Receivables - trade and other	503,151	545,204
Prepaid expenses and other current assets	24,903	29,253
Deferred tax assets - net	27,144us-gaap_DeferredTaxAssetsNetCurrent	27,485us-gaap_DeferredTaxAssetsNetCurrent
Total current assets	611,990us-gaap_AssetsCurrent	941,096us-gaap_AssetsCurrent
PROPERTY, PLANT AND EQUIPMENT:
Drilling equipment	8,440,018us-gaap_MachineryAndEquipmentGross	7,639,171us-gaap_MachineryAndEquipmentGross
Construction in progress	737,298us-gaap_ConstructionInProgressGross	1,023,646us-gaap_ConstructionInProgressGross
Other property and equipment	138,623us-gaap_PropertyPlantAndEquipmentOther	137,365us-gaap_PropertyPlantAndEquipmentOther
Property, plant and equipment - gross	9,315,939us-gaap_PropertyPlantAndEquipmentGross	8,800,182us-gaap_PropertyPlantAndEquipmentGross
Less accumulated depreciation and amortization	1,451,913	1,367,970
Property, plant and equipment - net	7,864,026us-gaap_PropertyPlantAndEquipmentNet	7,432,212us-gaap_PropertyPlantAndEquipmentNet
Other assets	35,948us-gaap_OtherAssetsNoncurrent	37,884us-gaap_OtherAssetsNoncurrent
TOTAL ASSETS	8,511,964us-gaap_Assets	8,411,192us-gaap_Assets
CURRENT LIABILITIES:
Accounts payable - trade	118,073us-gaap_AccountsPayableTradeCurrent	102,773us-gaap_AccountsPayableTradeCurrent
Deferred revenues	37,352us-gaap_DeferredRevenueCurrent	36,189us-gaap_DeferredRevenueCurrent
Accrued pension and other postemployment benefits	26,219	26,219
Accrued compensation and related employee costs	53,798us-gaap_AccruedSalariesCurrent	88,186us-gaap_AccruedSalariesCurrent
Accrued income taxes	25,565us-gaap_AccruedIncomeTaxesCurrent	13,265us-gaap_AccruedIncomeTaxesCurrent
Accrued interest	35,363us-gaap_InterestPayableCurrent	47,414us-gaap_InterestPayableCurrent
Other current liabilities	21,863us-gaap_OtherLiabilitiesCurrent	19,175us-gaap_OtherLiabilitiesCurrent
Total current liabilities	318,233us-gaap_LiabilitiesCurrent	333,221us-gaap_LiabilitiesCurrent
Long-term debt	2,807,114us-gaap_LongTermDebtNoncurrent	2,807,324us-gaap_LongTermDebtNoncurrent
Other liabilities	373,373us-gaap_OtherLiabilitiesNoncurrent	368,266us-gaap_OtherLiabilitiesNoncurrent
Deferred income taxes - net	206,898	210,982
Commitments and contingent liabilities (Note 4)
SHAREHOLDERS' EQUITY:
Class A Ordinary Shares, $0.125 par value, 125,928,807 and 124,828,807 shares issued at March 31, 2015, and December 31, 2014, respectively	15,741us-gaap_CommonStockValue	15,604us-gaap_CommonStockValue
Additional paid-in capital	1,440,690us-gaap_AdditionalPaidInCapital	1,436,910us-gaap_AdditionalPaidInCapital
Retained earnings	3,578,100	3,466,993
Cost of 1,165,394 and 264,903 treasury shares at March 31, 2015, and December 31, 2014, respectively	(11,453)us-gaap_TreasuryStockValue	(7,990)us-gaap_TreasuryStockValue
Accumulated other comprehensive loss	(216,732)	(220,118)
Total shareholders' equity	4,806,346us-gaap_StockholdersEquity	4,691,399us-gaap_StockholdersEquity
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 8,511,964	$ 8,411,192

Amount due from customers, clients, or other third-parties, or arising from transactions not separately disclosed, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.

No definition available.