CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME (unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Net (Loss) Income [Abstract]
Net (Loss) Income	$ (17,859)	$ (9,789)	$ 1,573	$ (13,422)
Other Comprehensive (Loss) Income, Net of Tax, Portion [Abstract]
Foreign Currency Translation Adjustment	3,024	(33)	2,758	382
Unrealized Gains (Losses) on Available-for-Sale Securities and Non-Marketable Securities	251	398	(784)	2,436
Reclassification Adjustment for Realized (Losses) Gains Recognized in Net (Loss) Income	0	(513)	1,426	(1,586)
Unrealized (Losses) Gains on Cash Flow Hedges	(1,204)	353	(1,472)	303
Net Change in Other Comprehensive (Loss) Income, Net of Tax	2,071	205	1,928	1,535
Comprehensive (Loss) Income	$ (15,788)	$ (9,584)	$ 3,501	$ (11,887)