Condensed Consolidated Balance Sheets - Unaudited (Parenthetical) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Statement of Financial Position [Abstract]    
Allowance for doubtful accounts $ 605 $ 585
Preferred stock, par value (in dollars per share) $ 0.01 $ 0.01
Preferred stock, shares authorized (in shares) 10,000,000 10,000,000
Preferred stock, shares issued (in shares) 0 0
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized (in shares) 100,000,000 100,000,000
Common stock, shares issued (in shares) 40,353,854 40,075,475
Common stock, shares outstanding (in shares) 39,449,319 39,201,477
Treasury stock, shares (in shares) 904,535 873,998