Income Taxes (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2013

Dec. 31, 2012

Income Taxes

Schedule of domestic and foreign source component of income (loss) before taxes

	Three months ended March 31, 2013			Three months ended March 31, 2012
Total US	$	(5,810	)	$	(2,951	)
Total Foreign	7,440			3,356
Total	$	1,630		$	405

	December 31,
	2012			2011			2010
Total US	$	(28,647	)	$	(37,669	)	$	(68,897	)
Total Foreign		20,967			20,125			25,814
Total	$	(7,680	)	$	(17,544	)	$	(43,083	)