Quarterly report pursuant to Section 13 or 15(d)

Consolidated Balance Sheets (unaudited) (Parenthetical)

v3.19.2
Consolidated Balance Sheets (unaudited) (Parenthetical) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Statement of Financial Position [Abstract]    
Allowance for doubtful accounts $ 8,579 $ 6,960
Common Stock, par value (dollars per share) $ 0.001 $ 0.001
Common Stock, shares authorized (in shares) 120,000,000 120,000,000
Common Stock, shares issued (in shares) 34,040,230 33,804,379
Common Stock, shares outstanding (in shares) 34,040,230 33,804,379
Preferred Stock, par value (dollars per share) $ 0.001 $ 0.001
Preferred Stock, shares authorized (in shares) 10,000,000 10,000,000
Preferred Stock, shares issued (in shares) 0 0
Preferred Stock, shares outstanding (in shares) 0 0