• Filing Date: 2018-03-07
  • Form Type: 10-K
  • Description: Annual report
v3.8.0.1
Consolidated Statements of Stockholders' Equity (Parenthetical) - Additional Paid-In Capital [Member]
$ in Thousands
12 Months Ended
Dec. 31, 2017
USD ($)
Stated interest rate on convertible senior notes 4.25%
Offering costs for convertible senior notes $ 543