CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 44,647	$ 42,851
Restricted cash	3,060	2,455
Accounts receivable, net	160,736	165,323
Deferred costs	13,941	22,766
Prepaid expenses	12,747	12,722
Other current assets	3,269	6,568
Total current assets	238,400	252,685
Property and equipment, net	212,636	266,404
Goodwill		131,299
Multi-client seismic data library, net	41,512	53,212
Deferred financing costs, net	12,987	11,794
Other assets, net	8,637	9,770
Total assets	514,172	725,164
Current liabilities:
Short-term debt and current portion of long-term debt and capital lease obligations	4,543	1,634
Accounts payable	79,300	65,417
Accrued liabilities	79,836	75,694
Deferred revenue	32,675	49,537
Income taxes payable	18,969	15,997
Total current liabilities	215,323	208,279
Long-term debt and capital lease obligations, net of current portion	350,183	319,284
Deferred income taxes	8,062	16,169
Derivative liabilities	5,778	38,271
Mandatorily redeemable preferred stock	53,210	45,265
Other liabilities	1,122	1,122
Total liabilities	633,678	628,390
Commitments and contingencies
Mezzanine equity:
Preferred stock, Series B Senior Convertible, $10.00 par value; 2,500,000 shares authorized, 351,444 shares issued and outstanding as of December 31, 2011 and 319,174 shares issued and outstanding as of December 31, 2010	83,313	74,987
Stockholders' equity (deficit):
Common stock, $.01 par value; 100,000,000 shares authorized, 19,289,489 shares issued and 18,990,290 shares outstanding as of December 31, 2011 and 18,118,290 shares issued and 17,804,459 shares outstanding as of December 31, 2010	193	179
Additional paid-in capital	228,410	230,977
Accumulated deficit	(431,442)	(209,389)
Accumulated other comprehensive income	20	20
Total stockholders' equity (deficit)	(202,819)	21,787
Total liabilities, mezzanine and stockholders' equity (deficit)	$ 514,172	$ 725,164