CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Statement [Abstract]
REVENUES	$ 1,824,383us-gaap_Revenues	$ 1,579,284us-gaap_Revenues	$ 1,392,607us-gaap_Revenues
COSTS AND EXPENSES:
Direct operating costs (excluding items below)	991,340rdc_DrillingOperations	860,893rdc_DrillingOperations	752,173rdc_DrillingOperations
Depreciation and amortization	322,641	271,008	247,900
Selling, general and administrative	125,834	131,373	99,712
Gain on disposals of property and equipment	(1,778)	(20,119)	(2,502)
Litigation settlement	(20,875)us-gaap_LitigationSettlementExpense	0us-gaap_LitigationSettlementExpense	(4,700)us-gaap_LitigationSettlementExpense
Material charges and other operating expenses	573,950us-gaap_OtherCostAndExpenseOperating	4,453us-gaap_OtherCostAndExpenseOperating	44,972us-gaap_OtherCostAndExpenseOperating
Total costs and expenses	1,991,112us-gaap_CostsAndExpenses	1,247,608us-gaap_CostsAndExpenses	1,137,555us-gaap_CostsAndExpenses
INCOME (LOSS) FROM OPERATIONS	(166,729)us-gaap_OperatingIncomeLoss	331,676us-gaap_OperatingIncomeLoss	255,052us-gaap_OperatingIncomeLoss
OTHER INCOME (EXPENSE):
Interest expense, net of interest capitalized	(103,934)us-gaap_InterestExpense	(69,794)us-gaap_InterestExpense	(50,717)us-gaap_InterestExpense
Interest income	1,861us-gaap_InvestmentIncomeInterest	1,578us-gaap_InvestmentIncomeInterest	745us-gaap_InvestmentIncomeInterest
Loss on debt extinguishment	0	0	(22,223)
Other - net	(805)us-gaap_OtherNonoperatingIncomeExpense	(2,221)us-gaap_OtherNonoperatingIncomeExpense	613us-gaap_OtherNonoperatingIncomeExpense
Total other income (expense) - net	(102,878)us-gaap_NonoperatingIncomeExpense	(70,437)us-gaap_NonoperatingIncomeExpense	(71,582)us-gaap_NonoperatingIncomeExpense
INCOME (LOSS) FROM CONTINUING OPERATIONS
BEFORE INCOME TAXES	(269,607)	261,239	183,470
Provision (benefit) for income taxes	(150,732)us-gaap_IncomeTaxExpenseBenefit	8,663us-gaap_IncomeTaxExpenseBenefit	(19,829)us-gaap_IncomeTaxExpenseBenefit
NET INCOME (LOSS) FROM CONTINUING OPERATIONS	(118,875)	252,576	203,299
DISCONTINUED OPERATIONS:
Income (loss) from discontinued operations, net of tax	4,023	0	(22,697)
Discontinued operations, net of tax	4,023	0	(22,697)
NET INCOME (LOSS)	$ (114,852)us-gaap_NetIncomeLoss	$ 252,576us-gaap_NetIncomeLoss	$ 180,602us-gaap_NetIncomeLoss
INCOME (LOSS) PER SHARE - BASIC:
Income (loss) from continuing operations	$ (0.96)	$ 2.04	$ 1.65
Discontinued operations (in dollars per share)	$ 0.03	$ 0.00	$ (0.18)
Net income (loss)	$ (0.93)	$ 2.04	$ 1.47
INCOME (LOSS) PER SHARE - DILUTED:
Income (loss) from continuing operations	$ (0.96)	$ 2.03	$ 1.64
Discontinued operations (in dollars per share)	$ 0.03	$ 0.00	$ (0.18)
Net income (loss)	$ (0.93)	$ 2.03	$ 1.46

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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.

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After tax income (loss) from operations of a business component (exclusive of any gain (loss) on disposal, or provision therefore) during the reporting period, until its disposal.

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-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.9)

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.4)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 330

-SubTopic 10

-Section 30

-Paragraph 8

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