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Litigation (Details) (WesternGeco [Member], USD $)
In Millions, unless otherwise specified
 1 Months Ended 3 Months Ended 0 Months Ended 1 Months Ended
Jun. 30, 2009
Patent
Aug. 31, 2012
Mar. 31, 2015
Oct. 24, 2013
Apr. 30, 2014
Oct. 31, 2013
May 31, 2014
Litigation (Textual) [Abstract]              
Number of patent apparatus claims contained 4us-gaap_LossContingencyNewClaimsFiledNumber            
Pending Litigation [Member]              
Litigation (Textual) [Abstract]              
Total damages awarded   $ 105.9us-gaap_LossContingencyDamagesAwardedValue
/ us-gaap_LitigationCaseAxis
= io_WesterngecoMember
/ us-gaap_LitigationStatusAxis
= us-gaap_PendingLitigationMember		          
Pending Litigation, Post Appeal [Member]              
Litigation (Textual) [Abstract]              
Maximum amount of appeal bond     120.0io_LossContingencyAppealBondMaximum
/ us-gaap_LitigationCaseAxis
= io_WesterngecoMember
/ us-gaap_LitigationStatusAxis
= io_PendingLitigationPostAppealMember		        
Annual fee to maintain appeal bond     1.6io_LossContingencyAnnualFeeToMaintainAppealBond
/ us-gaap_LitigationCaseAxis
= io_WesterngecoMember
/ us-gaap_LitigationStatusAxis
= io_PendingLitigationPostAppealMember		        
Lost Royalties [Member] | Pending Litigation [Member]              
Litigation (Textual) [Abstract]              
Total damages awarded   12.5us-gaap_LossContingencyDamagesAwardedValue
/ us-gaap_LitigationCaseAxis
= io_WesterngecoMember
/ us-gaap_LitigationStatusAxis
= us-gaap_PendingLitigationMember
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= io_LostRoyaltiesMember		          
Lost Profits [Member] | Pending Litigation [Member]              
Litigation (Textual) [Abstract]              
Total damages awarded   93.4us-gaap_LossContingencyDamagesAwardedValue
/ us-gaap_LitigationCaseAxis
= io_WesterngecoMember
/ us-gaap_LitigationStatusAxis
= us-gaap_PendingLitigationMember
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= io_LostProfitsMember		          
Lost Profits [Member] | Settled Litigation [Member]              
Litigation (Textual) [Abstract]              
Total damages awarded       9.4us-gaap_LossContingencyDamagesAwardedValue
/ us-gaap_LitigationCaseAxis
= io_WesterngecoMember
/ us-gaap_LitigationStatusAxis
= us-gaap_SettledLitigationMember
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= io_LostProfitsMember		      
Reduction in damages award in the case         (3.0)io_LossContingencyDamagesAwardedIncreaseDecreaseFromAppeal
/ us-gaap_LitigationCaseAxis
= io_WesterngecoMember
/ us-gaap_LitigationStatusAxis
= us-gaap_SettledLitigationMember
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= io_LostProfitsMember		    
Accrual for loss contingency related to legal proceedings             123.8us-gaap_LossContingencyAccrualAtCarryingValue
/ us-gaap_LitigationCaseAxis
= io_WesterngecoMember
/ us-gaap_LitigationStatusAxis
= us-gaap_SettledLitigationMember
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= io_LostProfitsMember
Previously Reported [Member] | Lost Profits [Member] | Settled Litigation [Member]              
Litigation (Textual) [Abstract]              
Total damages awarded           $ 73.1us-gaap_LossContingencyDamagesAwardedValue
/ us-gaap_LitigationCaseAxis
= io_WesterngecoMember
/ us-gaap_LitigationStatusAxis
= us-gaap_SettledLitigationMember
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= io_LostProfitsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember