Description of Business and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Accounting Policies [Abstract]

Schedule of Revisions of Prior Period Financial Statements

the following tables summarize the effects of the immaterial error corrections on the historical consolidated balance sheets and statements of shareholders' equity within these consolidated financial statements for the periods indicated (in thousands):

	As of December 31, 2011
	As previously reported	Adjustment	Revised
Equity method investment	$7,798	$15,607	$23,405
Total assets	$377,790	$15,607	$393,397
Additional paid-in capital	$575,515	$15,607	$591,122
Total shareholders' equity	$271,287	$15,607	$286,894
Total liabilities and shareholders' equity	$377,790	$15,607	$393,397

	As of December 31, 2010
	As previously reported	Adjustment	Revised
Equity method investment	$15,486	$12,494	$27,980
Total assets	$565,442	$12,494	$577,936
Additional paid-in capital	$697,532	$12,494	$710,026
Total shareholders' equity	$412,745	$12,494	$425,239
Total liabilities and shareholders' equity	$565,442	$12,494	$577,936

Components of Accumulated Other Comprehensive Income Loss

The components of accumulated other comprehensive loss, net of any applicable tax, are as follows (in thousands):

	December 31,
	2012			2011
Unrealized gains on investments, net of tax effects of $(846) for 2012 and 2011	$	26,685		$	27,318
Foreign currency translation adjustments	(53,225		)	(52,202		)
Accumulated other comprehensive income (loss)	$	(26,540	)	$	(24,884	)