Basic and Diluted Net Loss Attributable to Common Stockholders per Common Share (Tables)

3 Months Ended

Mar. 31, 2013

Basic and Diluted Net Loss Attributable to Common Stockholders per Common Share

Schedule of reconciliation of the numerator and denominator used in computing basic and diluted net loss attributable to common stockholders per common share

	Three Months Ended March 31,
(In thousands, except per share amounts)	2012			2013
Historical
Numerator:
Net loss attributable to common stockholders	$	(13,137	)	$	(17,458	)
Denominator:
Weighted average common shares outstanding — basic and diluted	37,887,520			49,621,188