Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Statement of Financial Position [Abstract]
Trade, allowance for doubtful accounts	$ 444	$ 332
Notes and other, allowance for doubtful accounts	351	688
Seismic data library, accumulated amortization	1,009,959	984,536
Property and equipment, accumulated depreciation and amortization	14,558	14,432
Intangible assets, accumulated amortization	$ 39,346	$ 38,739
Common stock, par value per share	$ 0.001	$ 0.001
Common stock, shares authorized	100	100
Common stock, shares issued	100	100
Common stock, shares outstanding	100	100