Quarterly report pursuant to Section 13 or 15(d)

Consolidated Balance Sheets (Unaudited) (Parenthetical)

v3.10.0.1
Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($)
$ in Thousands
Sep. 30, 2018
Dec. 31, 2017
Statement of Financial Position [Abstract]    
Preferred stock, shares authorized (in shares) 9,764,000 9,764,000
Preferred stock, par value (usd per share) $ 0.0001 $ 0.0001
Preferred stock, shares issued (in shares) 0 0
Common stock, shares authorized (in shares) 100,000,000 100,000,000
Common stock, par value (usd per share) $ 0.0001 $ 0.0001
Common stock, shares issued (in shares) 27,726,000 27,754,000
Common stock, shares outstanding (in shares) 27,726,000 27,754,000
Allowance for doubtful accounts $ 7,967 $ 6,539