XML 45 R35.htm IDEA: XBRL DOCUMENT v3.10.0.1
FAIR VALUE OF FINANCIAL INSTRUMENTS - Continuous Loss Position (Details)
$ in Thousands
Dec. 31, 2018
USD ($)
Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract]  
Fair value of marketable securities, continuous unrealized losses, less than 12 months $ 112,900
Fair value of marketable securities, continuous unrealized losses, 12 months or greater 0
Fair value of marketable securities, continuous unrealized losses 112,900
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]  
Unrealized loss, continuous unrealized losses, less than 12 months (172)
Unrealized loss, continuous unrealized losses, 12 months or greater 0
Unrealized loss, continuous unrealized losses $ (172)