Condensed Consolidated Statements Of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net income (loss)	$ 1,270	$ (5,026)	$ 15,976	$ (4,515)
Unrealized loss on securities held as available for sale, net of tax:
Unrealized net holding loss arising during the period	(117)	(1,000)	(32)	(177)
Less: Reclassification adjustment for realized gains included in earnings	(230)	(980)	(230)	(2,467)
Foreign currency translation adjustments	(2,895)	1,143	(339)	4,434
Comprehensive income (loss)	$ (1,972)	$ (5,863)	$ 15,375	$ (2,725)