Condensed Consolidating Financial Information - Condensed Cash Flow Statement (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash flows from operating activities:
Net cash provided by (used in) operating activities	$ (35,996)	$ 86,976
Cash flows from investing activities:
Cash invested in multi-client data library	(28,152)	(57,340)
Purchase of property, plant, equipment and seismic rental equipment	(17,601)	(6,842)
Repayment of advances to INOVA Geophysical	0	1,000
Net investment in and advances to OceanGeo B.V. prior to its consolidation	0	(3,074)
Net proceeds from sale of Source product line	0	14,394
Other investing activities	1,262	928
Net cash used in investing activities	(44,491)	(50,934)
Cash flows from financing activities:
Payments under revolving line of credit	0	(50,000)
Borrowings under revolving line of credit	0	15,000
Payments on notes payable and long-term debt	(5,431)	(11,737)
Cost associated with issuance of notes	(146)	(2,126)
Intercompany lending	0	0
Acquisition of non-controlling interest		(6,000)
Other financing activities	(52)	423
Net cash used in financing activities	(5,483)	(54,440)
Effect of change in foreign currency exchange rates on cash and cash equivalents	601	189
Net decrease in cash and cash equivalents	(85,369)	(18,209)
Cash and cash equivalents at beginning of period	173,608	148,056
Cash and cash equivalents at end of period	88,239	129,847
Reportable Legal Entities [Member] | ION Geophysical Corporation [Member]
Cash flows from operating activities:
Net cash provided by (used in) operating activities	(414,473)	(40,896)
Cash flows from investing activities:
Cash invested in multi-client data library	0	0
Purchase of property, plant, equipment and seismic rental equipment	(347)	(1,501)
Repayment of advances to INOVA Geophysical		1,000
Net investment in and advances to OceanGeo B.V. prior to its consolidation		0
Net proceeds from sale of Source product line		0
Other investing activities	0	579
Net cash used in investing activities	(347)	78
Cash flows from financing activities:
Payments under revolving line of credit		(50,000)
Borrowings under revolving line of credit		15,000
Payments on notes payable and long-term debt	0	0
Cost associated with issuance of notes		(2,126)
Intercompany lending	330,828	37,114
Acquisition of non-controlling interest		0
Other financing activities	(52)	423
Net cash used in financing activities	330,776	411
Effect of change in foreign currency exchange rates on cash and cash equivalents	0	0
Net decrease in cash and cash equivalents	(84,044)	(40,407)
Cash and cash equivalents at beginning of period	109,514	124,701
Cash and cash equivalents at end of period	25,470	84,294
Reportable Legal Entities [Member] | The Guarantors [Member]
Cash flows from operating activities:
Net cash provided by (used in) operating activities	173,725	63,588
Cash flows from investing activities:
Cash invested in multi-client data library	(27,282)	(57,192)
Purchase of property, plant, equipment and seismic rental equipment	(1,162)	(4,165)
Repayment of advances to INOVA Geophysical		0
Net investment in and advances to OceanGeo B.V. prior to its consolidation		0
Net proceeds from sale of Source product line		9,881
Other investing activities	1,262	0
Net cash used in investing activities	(27,182)	(51,476)
Cash flows from financing activities:
Payments under revolving line of credit		0
Borrowings under revolving line of credit		0
Payments on notes payable and long-term debt	(4,798)	(4,470)
Cost associated with issuance of notes		0
Intercompany lending	(141,745)	(7,642)
Acquisition of non-controlling interest		0
Other financing activities	0	0
Net cash used in financing activities	(146,543)	(12,112)
Effect of change in foreign currency exchange rates on cash and cash equivalents	0	0
Net decrease in cash and cash equivalents	0	0
Cash and cash equivalents at beginning of period	0	0
Cash and cash equivalents at end of period	0	0
Reportable Legal Entities [Member] | All Other Subsidiaries [Member]
Cash flows from operating activities:
Net cash provided by (used in) operating activities	204,752	64,284
Cash flows from investing activities:
Cash invested in multi-client data library	(870)	(148)
Purchase of property, plant, equipment and seismic rental equipment	(16,092)	(1,176)
Repayment of advances to INOVA Geophysical		0
Net investment in and advances to OceanGeo B.V. prior to its consolidation		(3,074)
Net proceeds from sale of Source product line		4,513
Other investing activities	0	349
Net cash used in investing activities	(16,962)	464
Cash flows from financing activities:
Borrowings under revolving line of credit		0
Payments on notes payable and long-term debt	(633)	(7,267)
Cost associated with issuance of notes		0
Intercompany lending	(189,083)	(29,472)
Acquisition of non-controlling interest		(6,000)
Other financing activities	0	0
Net cash used in financing activities	(189,716)	(42,739)
Effect of change in foreign currency exchange rates on cash and cash equivalents	601	189
Net decrease in cash and cash equivalents	(1,325)	22,198
Cash and cash equivalents at beginning of period	64,094	23,355
Cash and cash equivalents at end of period	62,769	$ 45,553
Consolidation, Eliminations [Member]
Cash flows from financing activities:
Cash and cash equivalents at beginning of period	0
Cash and cash equivalents at end of period	$ 0