Basis of Presentation (Tables)

9 Months Ended

Sep. 30, 2013

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Accumulated Other Comprehensive Income

	Foreign Currency Translation Adjustments			Unrealized Gain (Loss) on Investments			Accumulated Other Comprehensive Income
Balance as of December 31, 2012	$	1,055		$	12,231		$	13,286
Current period other comprehensive loss		(331	)		(3,501	)		(3,832	)
Balance as of September 30, 2013	$	724		$	8,730		$	9,454