Statement of Cash Flow Information (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2013

Dec. 31, 2012

Supplemental Cash Flow Elements [Abstract]

Schedule of Noncash or Part Noncash Acquisitions

The Company had non-cash additions to its seismic data library comprised of the following for the periods indicated (in thousands):



	Three Months Ended March 31,
	2013		2012
Non-monetary exchanges related to resale licensing revenue	$	324	$	709
Completion of data in progress from prior non-monetary exchanges	2,392		—
Total non-cash additions to seismic data library	$	2,716	$	709

The Company had non-cash additions to its seismic data library comprised of the following (in thousands):



	Year Ended December 31,
	2012			2011			2010
Non-monetary exchanges related to resale licensing revenue	$	1,554		$	7,609		$	4,000
Non-monetary exchanges from underwriting of new data acquisition	4,122			2,687			3,222
Other non-monetary exchanges	—			98			124
Completion of data in progress from prior non-monetary exchanges	142			—			3,199
Less: Non-monetary exchanges for data in progress	(2,442		)	(179		)	—
Total non-cash additions to seismic data library	$	3,376		$	10,215		$	10,545

Schedule of Non-Cash Revenue

Non-cash revenue consisted of the following for the periods indicated (in thousands):



	Three Months Ended March 31,
	2013		2012
Acquisition revenue on underwriting from non-monetary exchange contracts	$	57	$	1,268
Licensing revenue from specific data licenses and selections on non-monetary exchange contracts	578		827
Solutions revenue recognized from non-monetary exchange contracts	—		20
Total non-cash revenue	$	635	$	2,115

Non-cash revenue consisted of the following (in thousands):



	Year Ended December 31,
	2012		2011		2010
Acquisition revenue on underwriting from non-monetary exchange contracts	$	5,452	$	2,274	$	2,677
Licensing revenue from specific data licenses and selections on non-monetary exchange contracts	3,046		7,169		7,187
Solutions revenue recognized from non-monetary exchange contracts	20		71		—
Total non-cash revenue	$	8,518	$	9,514	$	9,864

- Definition

Tabular disclosure of acquisition of assets or a business through noncash (or part noncash) transactions. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Disclosure may include the equity interest acquired, value of assets acquired, value of liabilities acquired, net monetary assets acquired, number of shares, warrants or options issued as consideration for a business or asset acquired and other information necessary to a fair presentation.

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