Condensed Consolidated Statement Of Stockholder's Equity (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Deficit [Member]	Accumulated Other Comprehensive Income [Member]
Balance at Dec. 31, 2011	$ 109,840	$ 0	$ 398,011	$ (309,185)	$ 21,014
Balance, shares at Dec. 31, 2011	100	100
Increase (Decrease) in Stockholder's Equity [Roll Forward]
Amortization of stock-based compensation costs	318		318		0
Net income	15,976			15,976	0
Foreign currency translation adjustments	(339)				(339)
Unrealized loss on marketable securities, net of tax	(32)				(32)
Reclassification adjustment for realized gains on marketable securities included in earnings, net of tax	(230)				(230)
Balance at Jun. 30, 2012	$ 125,533	$ 0	$ 398,329	$ (293,209)	$ 20,413
Balance, shares at Jun. 30, 2012	100	100