XML 48 R32.htm IDEA: XBRL DOCUMENT v3.6.0.2
Summary of Significant Accounting Policies - Summary of Estimated Fair Value of Company's Investments in Marketable Securities, Accounted for as Available-for-Sale Securities (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Available For Sale Securities [Abstract]    
Due within one year $ 21,033  
Total $ 21,033 $ 16,793