Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Schedule of Potentially Dilutive Shares (Parenthetical) (Details)

v3.19.2
Summary of Significant Accounting Policies - Schedule of Potentially Dilutive Shares (Parenthetical) (Details)
Jun. 30, 2019
Common stock associated with 6% convertible senior notes  
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]  
Interest rate 6.00%