1.0.0.3 false CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) (USD $) In Thousands, except Per Share data false 1 $ false false u000 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 u002 Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 false 2 $ false false u000 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 u002 Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 false 3 $ false false u000 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 u002 Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 false 4 $ false false u000 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 u002 Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 5 REVENUES: 3 us-gaap_RevenuesAbstract us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false 4 false false 0 0 false false No definition available. false 6 Drilling services 4 us-gaap_RevenueOilAndGasServices us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 true true 258394000 258394 false false 2 true true 357143000 357143 false false 3 true true 959571000 959571 false false 4 true true 1064944000 1064944 false false No definition available. No authoritative reference available. false 7 Manufacturing sales and services 4 rdc_ManufacturingSalesAndServices rdc false credit duration monetary Aggregate revenue recognized during the period derived from manufacturing goods sold and services rendered. false false false false false false false false false 1 false true 135027000 135027 false false 2 false true 169915000 169915 false false 3 false true 410818000 410818 false false 4 false true 534745000 534745 false false Aggregate revenue recognized during the period derived from manufacturing goods sold and services rendered. No authoritative reference available. false 8 Total revenues 4 us-gaap_Revenues us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 393421000 393421 false false 2 false true 527058000 527058 false false 3 false true 1370389000 1370389 false false 4 false true 1599689000 1599689 false false No definition available. No authoritative reference available. true 9 COSTS AND EXPENSES: 3 us-gaap_CostsAndExpensesAbstract us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false 4 false false 0 0 false false No definition available. false 10 Drilling services (excluding items shown below) 4 rdc_DrillingOperations rdc false debit duration monetary The aggregate costs related to drilling services rendered during the reporting period. This excludes costs incurred during... false false false false false false false false false 1 false true 121238000 121238 false false 2 false true 163330000 163330 false false 3 false true 403459000 403459 false false 4 false true 483107000 483107 false false The aggregate costs related to drilling services rendered during the reporting period. This excludes costs incurred during the reporting period related to depreciation, allocated general and administrative expenses, gains and losses on equipment sales, and other certain material charges and credits attributable to drilling services. No authoritative reference available. false 11 Manufacturing sales and services (excluding items shown below) 4 rdc_ManufacturingOperationsExcludingItemsShownBelow rdc false debit duration monetary The aggregate costs related to manufacturing sales and services rendered during the reporting period. This excludes costs... false false false false false false false false false 1 false true 116949000 116949 false false 2 false true 149174000 149174 false false 3 false true 355145000 355145 false false 4 false true 454755000 454755 false false The aggregate costs related to manufacturing sales and services rendered during the reporting period. This excludes costs incurred during the reporting period related to depreciation, allocated general and administrative expenses, gains and losses on equipment sales, and other certain material charges and credits attributable to manufacturing activities. No authoritative reference available. false 12 Depreciation and amortization 4 rdc_DepreciationAndAmortizationForCurrentPeriod rdc false debit duration monetary Aggregate depreciation, depletion and amortization expense in the current period for the cost of tangible assets, intangible... false false false false false false false false false 1 false true 43747000 43747 false false 2 false true 36230000 36230 false false 3 false true 126855000 126855 false false 4 false true 102782000 102782 false false Aggregate depreciation, depletion and amortization expense in the current period for the cost of tangible assets, intangible assets, or depleting assets directly related to goods produced and sold during the reporting period and Aggregate depreciation, depletion and amortization expense in the current period for the cost of tangible assets, intangible assets, or depleting assets directly related to goods produced and sold during the reporting period. No authoritative reference available. false 13 Selling, general and administrative 4 us-gaap_SellingGeneralAndAdministrativeExpense us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 24094000 24094 false false 2 false true 27595000 27595 false false 3 false true 73390000 73390 false false 4 false true 85767000 85767 false false No definition available. No authoritative reference available. false 14 Loss (gain) on disposals of property and equipment 4 us-gaap_GainLossOnSaleOfPropertyPlantEquipment us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 305000 305 false false 2 false true -21447000 -21447 false false 3 false true -4336000 -4336 false false 4 false true -28329000 -28329 false false No definition available. No authoritative reference available. false 15 Total costs and expenses 4 us-gaap_CostsAndExpenses us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 306333000 306333 false false 2 false true 354882000 354882 false false 3 false true 954513000 954513 false false 4 false true 1098082000 1098082 false false No definition available. No authoritative reference available. true 16 INCOME FROM OPERATIONS 3 us-gaap_OperatingIncomeLoss us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 87088000 87088 false false 2 false true 172176000 172176 false false 3 false true 415876000 415876 false false 4 false true 501607000 501607 false false No definition available. No authoritative reference available. true 17 OTHER INCOME (EXPENSE): 3 rdc_OtherIncomeAbstract rdc false na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false 4 false false 0 0 false false No definition available. false 18 Interest expense 4 us-gaap_InterestExpense us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -10810000 -10810 false false 2 false true -4456000 -4456 false false 3 false true -16410000 -16410 false false 4 false true -14351000 -14351 false false No definition available. No authoritative reference available. false 19 Less interest capitalized 4 us-gaap_InterestCostsCapitalized us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 7348000 7348 false false 2 false true 4456000 4456 false false 3 false true 12455000 12455 false false 4 false true 13624000 13624 false false No definition available. No authoritative reference available. false 20 Interest income 4 us-gaap_InvestmentIncomeInterest us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 441000 441 false false 2 false true 1081000 1081 false false 3 false true 973000 973 false false 4 false true 5445000 5445 false false No definition available. No authoritative reference available. false 21 Other - net 4 us-gaap_OtherNonoperatingIncomeExpense us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 2303000 2303 false false 2 false true -1924000 -1924 false false 3 false true 6139000 6139 false false 4 false true -680000 -680 false false No definition available. No authoritative reference available. false 22 Total other income (expense) - net 4 us-gaap_NonoperatingIncomeExpense us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -718000 -718 false false 2 false true -843000 -843 false false 3 false true 3157000 3157 false false 4 false true 4038000 4038 false false No definition available. No authoritative reference available. true 23 INCOME BEFORE INCOME TAXES 3 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 86370000 86370 false false 2 false true 171333000 171333 false false 3 false true 419033000 419033 false false 4 false true 505645000 505645 false false No definition available. No authoritative reference available. false 24 Provision for income taxes 3 us-gaap_IncomeTaxExpenseBenefit us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 7978000 7978 false false 2 false true 57219000 57219 false false 3 false true 112358000 112358 false false 4 false true 172298000 172298 false false No definition available. No authoritative reference available. false 25 NET INCOME 3 us-gaap_NetIncomeLoss us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 true true 78392000 78392 false false 2 true true 114114000 114114 false false 3 true true 306675000 306675 false false 4 true true 333347000 333347 false false No definition available. No authoritative reference available. true 26 PER SHARE AMOUNTS: 3 rdc_EarningsPerShareBasicAndDilutedAbstract rdc false na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false 4 false false 0 0 false false No definition available. false 27 Net income - basic 4 us-gaap_EarningsPerShareBasic us-gaap true na duration decimal No definition available. false false false false false false false false true 1 true true 0.69 0.69 false false 2 true true 1.01 1.01 false false 3 true true 2.70 2.70 false false 4 true true 2.96 2.96 false false No definition available. No authoritative reference available. false 28 Net income - diluted 4 us-gaap_EarningsPerShareDiluted us-gaap true na duration decimal No definition available. false false false false false false false false true 1 true true 0.69 0.69 false false 2 true true 1.00 1.00 false false 3 true true 2.70 2.70 false false 4 true true 2.94 2.94 false false No definition available. No authoritative reference available. false false 4 24 false Thousands UnKnown Hundreds false true