Unaudited Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Income Statement [Abstract]
Revenue	$ 78,243	$ 79,195
Cost of revenue	(45,613)	(45,744)
Gross margin	32,630	33,451
Expenses:
Selling, general and administrative	(18,017)	(14,913)
Depreciation and amortization	(1,190)	(958)
Research and development	(875)	(832)
Total expenses	(20,082)	(16,703)
Income from operations	12,548	16,748
Other income (expense):
Loss on extinguishment of debt	0	(5,391)
Change in fair value of warrant liability	0	(3,875)
Interest expense	(434)	(2,251)
Other expense, net	(112)	(7)
Total other income (expense)	(546)	(11,524)
Income before income taxes	12,002	5,224
Income tax expense	(4,237)	(1,618)
Net income	$ 7,765	$ 3,606
Earnings per common share:
Basic earnings per common share	$ 0.16	$ 0.08
Diluted earnings per common share	$ 0.15	$ 0.07
Weighted average common shares:
Weighted average common shares used in computing basic earnings per common share	48,582	47,669
Weighted average common shares used in computing diluted earnings per common share	51,222	50,340