Cash and Cash Equivalents (Tables)

6 Months Ended

Jun. 30, 2016

Cash and Cash Equivalents [Abstract]

Cash and cash equivalents

The carrying values of the Company's cash and cash equivalents are as follows:

	As of June 30,		As of December 31,
	2016		2015
	(in thousands, unaudited)
Cash	$	56,661	$	59,270
Cash equivalents	2,239		5,946
Restricted cash - deferred compensation plan	—		117
Restricted cash - letters of credit	4,885		4,629
Total cash and cash equivalents	$	63,785	$	69,962