XML 66 R63.htm IDEA: XBRL DOCUMENT v2.4.1.9
Subsequent Events (Details) (USD $)
 0 Months Ended
Feb. 20, 2015
Apr. 24, 2015
Mar. 31, 2015
Subsequent event      
Dividend declared (in dollars per share) $ 0.06us-gaap_CommonStockDividendsPerShareDeclared    
Joint Venture in Saudi Arabia      
Subsequent event      
Ownership percentage     51.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= nbr_JointVentureInSaudiArabiaMember
Subsequent Event      
Subsequent event      
Dividend declared (in dollars per share)   $ 0.06us-gaap_CommonStockDividendsPerShareDeclared
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember