Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2015

Summary of Significant Accounting Policies [Abstract]

Schedule of Cash and Equivalents

Cash and cash equivalents consist of the following at (in thousands):

	September 30,		December 31,
	2015		2014
Cash	$	5,682	$	4,481
Money market funds		71,205		20,354
Government-backed security		28,000		7,500
Asset-backed securities		4,061		—
Corporate debt securities		29,196		—
Cash and cash equivalents	$	138,144	$	32,335