Income Taxes (Tables)

3 Months Ended

Mar. 31, 2013

Income Taxes

Schedule of change in unrecognized tax benefits

The changes in uncertain tax positions for the three months ended March 31, 2013 and 2012 were as follows (in thousands):

	Three Months Ended March 31,
	2013		2012
Balance at beginning of period	$	3,797	$	100
Additions for tax positions related to prior periods	835		—
Balance at end of period	$	4,632	$	100