Details of Selected Balance Sheet Accounts - Multi-Client Data Library (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Gross costs of multi-client data creation	$ 984,622	$ 972,309
Less accumulated amortization	(796,256)	(776,860)
Less impairments to multi-client data library	(121,905)	(121,905)
Multi-client data library, net	$ 66,461	$ 73,544

Capitalized costs directly incurred in acquiring and processing of seismic surveys that are licensed on a nonexclusive basis, net of amortization.

No definition available.

Name:	io_MultiClientDataLibraryNet
Namespace Prefix:	io_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant