Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Condensed Consolidated Statements Of Operations [Abstract]
Revenue	$ 79,195	$ 52,905
Cost of revenue	45,744	31,760
Gross margin	33,451	21,145
Expenses:
Selling, general and administrative	14,913	10,341
Depreciation and amortization	958	1,021
Research and development	832	499
Total expenses	16,703	11,861
Income from operations	16,748	9,284
Other income (expense):
Loss on extinguishment of debt	(5,391)
Change in fair value of warrant liability	(3,875)	7,554
Interest expense	(2,251)	(4,857)
Other income (expense), net	(7)	17
Total other income (expense)	(11,524)	2,714
Income before income taxes	5,224	11,998
Income tax expense	(1,618)	(1,624)
Net income	3,606	10,374
Accrued dividends and accretion of discount on preferred stock		(4,868)
Net income attributable to common stockholders	$ 3,606	$ 5,506
Earnings per common share:
Basic earnings per common share	$ 0.08	$ 0.15
Diluted earnings per common share	$ 0.07	$ 0.13
Weighted average common shares:
Weighted average common shares used in computing basic earnings per common share	47,669	37,571
Weighted average common shares used in computing diluted earnings per common share	50,340	43,548