Comprehensive Income (Tables)

6 Months Ended

Jun. 30, 2012

Comprehensive Income [Abstract]

Comprehensive Income

	Three Months Ended June  30,						Six Months Ended June 30,
	2012			2011			2012			2011
Net income	$	12,096		$	2,852		$	20,558		$	3,302
Other comprehensive income (loss), net of taxes:
Foreign currency translation adjustments (ION)		(1,503	)		(313	)		265			3,237
Equity interest in INOVA Geophysical’s other comprehensive income		369			997			716			1,582
Unrealized income (loss) on available-for-sale securities		(499	)		308			463			(506	)
Other changes in other comprehensive income (loss)		(34	)		(115	)		(27	)		(159	)
Total other comprehensive income (loss)		(1,667	)		877			1,417			4,154
Comprehensive net income		10,429			3,729			21,975			7,456
Comprehensive income attributable to noncontrolling interest		281			44			394			69
Comprehensive net income attributable to ION	$	10,710		$	3,773		$	22,369		$	7,525

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