XML 49 R36.htm IDEA: XBRL DOCUMENT v3.3.0.814
Cash and Cash Equivalents and Fair Value of Financial Instruments - Assets Measured at Fair Value On A Recurring Basis (Details) - USD ($)
$ in Thousands
Sep. 30, 2015
Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Money market funds $ 40,108 $ 64,577
Fair Value, Inputs, Level 1 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Money market funds 40,108 64,577
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash 17,649 61,311
Money market funds 40,108 64,577
Total cash and cash equivalents $ 57,757 $ 125,888